This case comes to the writer for opinion on reassignment. It is a suit on a promissory note. The note was dated April 30, 1921. According to its purport, the defendants, Roswald Meals, Logan Meals, May Meals and .Otto Meals, as makers, promised to pay to the order of plaintiff bank, one year after date, $15,200, with sis per cent per annum interest thereon from date, payable annually. Prior to its delivery it was endorsed in blank by defendants, J. Marvin Meals and Ernest Cottingham, for the accommodation of the makers, the endorsers waiving notice of demand and protest.
The petition is in the usual form. Defendant Roswald Meals by his answer pleads release from liability by reason of a discharge in bankruptcy. Defendant Otto Meals by verified answer denies that on the 30th day of April, 1921, he made and executed the note sued on; he further alleges a total failure of consideration. Defendant May Meals in her separate answer alleges in general terms a failure of consideration. Defendants J. Marvin Meals and Ernest Cotting-ham in a joint and separate answer set up two defenses: (1) That defendant Otto Meals signed the note sued on long after its execution and delivery by the other parties thereto, by reason of which there has been a material alteration of the note; and (2) that they were compelled to endorse the note through duress, in that the officers of plaintiff bank were threatening unless they did so to institute a criminal prosecution against Roswald Meals, their near relative. Defendant Logan Meals has filed no answer. The new matter in all of the answers, except that of defendant Roswald Meals, is put in issue by replies.
No part of the answer of the defendants, J. Marvin Meals and Ernest Cottingham, purports on its face to be a cross-petition'. The matters relating to material alteration and duress are apparently pleaded as defenses; yet the answer concludes with a prayer that “the decree of the chancellor be that the note in question be delivered up, declared to be null and void and cancelled, and for such other and further relief,” etc. The cause was tried in the circuit court as a suit in equity; the court found generally for the defendants on all issues, and entered a decree in conformity with the prayer just quoted. As the cause was tried below by both parties on the theory that it had been converted by answer into a suit in equity, it will be disposed of on that theory here.
Such of the uncontroverted facts as will show in a general way the setting of the case will first be noted. Defendants Logan Meáis and May Meals are husband and wife; defendants Roswald and Otto are their sons. At the time of the occurrences herein referred to Logan and May Meals resided on his farm of one hundred and twenty acres located in Randolph County, about six miles from Moberly. Roswald and Otto owned eighty acres of land adjoining, or near, that Of their *1164father. The father and the two sons were engaged in farming and in raising and buying- and selling livestock. They operated as partners under the firm name of Logan Meals & Sons. Otto lived with his parents; Roswald was employed' at the Kansas City Stock Yards as auctioneer, but he customarily spent the latter part of each week at his father’s home.
In April, 1917, Logan Meals & Sons, through Roswald, opened an account with plaintiff bank, and thereafter each member of the co-partnership as occasion offered drew checks against the firm’s account. At about the same time that the account was opened Logan Meals and his two sons borrowed of plaintiff $6,600 and gave as security a deed of trust on the two hundred acres of land heretofore referred to; the co-partnership also borrowed' from the bank $1900 on their unsecured note. Thereafter the firm’s unsecured indebtedness to the bank was increased from time to time by additional loans until on December 24, 1920, it had reached' the sum of $21,000. On that date Roswald Meals applied for a further loan of $6,165.05 and was told by the bank’s officers that no further advances would be made on his firm’s unsecured paper. Thereupon Roswald represented that the co-partnership owned, and' then had out on the farms belonging to his father and to himself and Otto, livestock of the value of about $17,000. It was then arranged that the bank would make the additional loan and that Logan Meals and his two sons would execute two new notes; one for $12,000 to be secured by a second deed of trust on the two hundred acres of land, and one for $15,975.40 to be secured by chattel mortgage on the livestock, thereby securing all of the then unsecured indebtedness of the firm to the bank, as well as the loan applied for. This arrangement was carried into execution. The $12,000 note and deed, of trust were signed by Logan Meals and his wife, May, and by each of his two sons. The $15,976.40 note and' chattel mortgage were signed individually by the father and each of the sons. Logan and Otto each denied that he signed these two documents, but according to .the great weight of evidence both signed them. , '
On April 29, 1921, in response to the insistence of the bank’s officials that such of the livestock described in the chattel mortgage as was in a marketable condition be sold and' the proceeds applied on the mortgage indebtedness, Roswald Meals confessed that Logan Meals & Sons did not have, either then or at the time the mortgage was given, any such livestock as was described therein. He stated, however, that he could furnish personal security that would be satisfactory to the bank. In that connection lie named J. Marvin Meals and Ernest Cottingham and two others as persons whom he might be able to procure as sureties on a new note. He was told that any two of the four named-would be acceptable,, but that the matter must *1165be fixed up at once. He immediately went to see first Meals, a brother of his father, and then Cottingham, a brother of his mother. Both were farmers and at that' time were living near Moberly. He explained to each his dilemma, and each promised to come to town the next day and see. what could be done to extricate him from his embarrassment. The next day, at about 2:30 o’clock in the afternoon, Boswald Meals, Logan Meals and May Meals appeared at plaintiff’s banking rooms and signed as makers, in the order just named, the note in suit. ("Whether Otto Meals signed the note on that day will be considered in subsequent paragraphs.) After the three had signed and they went out on the street to see if they could find J. Marvin Meals and Cottingham. Presently the latter made their appearance and inumerable conferences then followed, between • them and the members of the Meals family who were present, and between all of them (through intermediaries) and the officials of- the bank. Finally about 4:30"p. m., long after the bank’s regular closing hour, J. Marvin Meals and Cottingham endorsed the note and it was delivered to the bank.
According to the testimony of Logan Meals and May Meals, Otto did not go to Moberly with them the day they signed the note. They and Boswald ate an early dinner and then drove to Moberly in an automobile, leaving Otto at home at work harrowing in oats. When they returned about five o’clock or a little later, they summoned him from the field, where he was still at work, to drive Boswald to Moberly to enable the latter to take a six o’clock train to Kansas City.
Mrs. Sarah Cottingham, Mrs. Meals’s aged mother who was then staying at the home of her daughter, testified that Otto- was: at work all day harrowing in oats in a field in sight of the house; that he did not leave.the place until late in the evening when he left with Boswald' to take him to a train; and that he was then gone but a short time.
Otto Meals testified that on April 30, 1921, he was at work all day on the farm harrowing in oats; that, when he came in at noon he inquired of his grandmother where the other members of the family were, and was told that they had gone to Moberly; that he returned to the field and continued to work until about five o’clock when he was called to the house to take Boswald to the train; that he drove Boswald to Moberly and without getting out of the automobile immediately returned home; that on the following Thursday Bos-wald on his return from Kansas City told him about the note and the bank’s direction that he come in and sign it; and that on the next day he and Boswald drove to Moberly and' he went into the bank and placed his signature on the note.
J. Marvin Meals and Ernest Cottingham each testified that he did not see Otto Meals in Moberly on the day on which the note was *1166executed, and that bis signature was not on the note at the time they endorsed it and ajt the time it was delivered to the bank.
Plaintiff called three of its officers as witnesses: Frank. Harvey, cashier; John S. Lamb, vice-president; and John E. Lynch, president. Mr. Lynch at the time of the occurrences giving rise to this controversy was United States Marshal for the E'astern District of Missouri with headquarters at St. Louis. He customarily spent Saturday of' each week at the bank in Moberly, where he acted in an advisory capacity. (April 30, 1921, fell on Saturday), Mr. Lamb was in charge of and handling for the bank the transaction in question. He testified positively that Otto Meals was present in the bank when his father, mother and’ brother signed the note, and that he himself signed it at that very time and place, being the last to sigh. Mr. Harvey did not see Otto Meals sign the note, but he was quite clear'in his testimony that Otto was in and around the bank at the time the others signed. Mr. Lynch’s testimony was to the same effect.
It is conceded by the evidence on both sides that the note in suit was completed and delivered on April "30, 1921. There is no suggestion that there was' any understanding that it was not to be regarded'as delivered until signed by Otto Meals or that Otto was to sign it. Whether he signed it on that day was the precise issue to which both parties directed their proof. With respect to that issue six witnesses were called' by defendants and three by plaintiff, as heretofore indicated. Two of defendants’ witnesses, Mrs. Cottingham and Otto Meals, testified by deposition. All of the others were present at the trial. Aside from motives of self-interest, which must always be taken into consideration in weighing human testimony, the record discloses nothing that affects adversely the credibility of any of these witnesses. The testimony of none of them, whether considered alone or in connection with all the facts and circumstances in evidence, suggests any inherent improbability of its truthfulness. Yet their testimony taken as a whole presents an irreconcilable conflict. Under such circumstances we feel impelled to defer to the finding of the chancellor, who saw and heard the witnesses, or a majority of them, while they were on the stand giving their testimony. He found that Otto Meals did not sign the note until after its delivery to the bank, and that brings us to the consideration of the first legal question presented by the record.
It was long held in this State that any alteration of a promissory note by a party thereto without the knowledge of the other parties, however immaterial, would' invalidate it as against them. [First National Bank v. Fricke, 75 Mo. 178.] But under the Uniform Negotiable Instrument Law (see Secs. 910 and 911, R. S. 1919) and under the modem doctrine generally (1 R. C. L. 967), an alteration *1167to vitiate an instrument must be material. On the record here we have to determine, first, whether there was an alteration of the instrument sued on, and second, whether the alteration, if there' was one, was material.
If the evidence merely disclosed that the note had been delivered to the bank by the parties who first signed and endorsed it and- thereafter Otto Meals placed his signature on it and redelivered it to the bank, the presumption would arise that he signed as guarantor. [Stagg v. Linnenfelser, 59 Mo. 336, 342-3; Tenney v. Prince, 4 Pick. 385.] And if he had signed as guarantor such signing would not have affected an alteration of the note because his undertaking would have been collateral to and independent of that of the original parties. [Stagg v. Linnenfelser, supra; Burnham v. Gosnell, 47 Mo. App. 637; Adams v. Huggins, 73 Mo. App. 140; Corbyn v. Brokmeyer, 84 Mo. App. 649.] The evidence as a whole, however, renders inadmissible the view that Otto Meals signed as guarantor. In the first place his relationship to the parties and to the transaction and his financial condition, all exclude the idea that that was the character of his engagement. In the second place he participated in the original consideration - for which the note was given, namely: money lent to the co-partnership of which he was a member. Again, he was a party to the note and chattel mortgage surrendered-by the bank on the execution of the note in suit, and with respect to such note and mortgage he was a principal debtor. There can be no question, we think, but that he intended to sign, and did sign, the note involved in this proceeding as an original promisor, and that -he did so at the instance of the payee bank. As a consequence his signing effected a change in the number of the parties to the noté.
A material alteration is one which so changes the terms of the instrument as to give it a different legal effect from that which it originally had, and thus works some change in the rights, interest or obligations of the parties. “It is equally unimportant whether the alteration was beneficial or injurious to the party whom it is sought to charge on the instrument. The question is not whether such party has been, or could be, injuriously affected, but whether or not his rights have been materially affected — whether the' contract in its altered condition is the contract into which he entered. That is material which might become material, and any alteration which may in any event alter the rights, duties, or obligations of the person sought to be charged is material in the legal sense.” ' [1 R. C. L. 968.] Under Section 911, Revised Statutes 1919;- “any alteration which changes . . . (4) the number or relation of the parties ... is a material alteration.” Independent of the statute, according to the greater weight of authority, the adding of an additional party to a negotiable instrument subsequent to its1 execu*1168tion and delivery discharges the original parties when such change is made without their knowledge or consent. [Bank of Commerce v. Webster, 70 Okla. 73; Taylor v. Johnson, 17 Ga. 521; Nicholson v. Combs, 90 Ind. 515; Soaps v. Eichberg, 42 Ill. App. 375; McCaughey v. Smith, 27 N. Y. 39; Wallace v. Jewel, 21 Ohio St. 163; Ford v. Bank (Tex. Civ. App.), 34 S. W. 684; Brown v. Johnson Bros., 127 Ala. 292.]
“The reason why the addition of a name to a note, as a joint maker, after its issuance, materially alters it, is because it changes the number of parties and their relative rights; it changes the rate of contribution ; and it changes the character and description of the instrument. The original obligor may thereby be subjected to a suit in a county other than that of his residence, and suffer inconvenience and injury, as was done in this very case.” [Ford v. Bank, supra.]
Defendants J. Marvin Meals and Cottingham, having endorsed the note -in blank for the accommodation of the makers before delivery and waived notice of demand and protest, were, at least while the note was still in the hands .of the payee, neither more nor less than sureties for the makers or such of them as were the principal debtors. And sureties have a right to stand on the very terms of their obligations; having. consented to be bound to a certain extent only, their liability must be found within the terms of that consent, strictly construed. In Taylor v. Johnson, supra, it was said:
“The rule of law is not disputed, that the liability of a surety cannot be extended beyond the actual terms of his engagement; and that his liability will be extinguished by any act or omission which alters the terms of the contract, unless it be with his consent. And for myself, I am satisfied that the uniform doctrine of the books, supported by numerous decisions, is, that it matters not that the alteration. be for the benefit of the surety, because he has a right to stand upon the very terms of his agreement. And it is no answer to a surety to say that the alteration is not material. He has a right to determine for himself whether he will or will not consent to the alteration — whether he thinks it material or immaterial. No power of man can alter his engagement, and his liability be retained. He has a right to stand upon the very terms of his contract, and without :his,consent any variation of it is fatal.”
In view of the statute, as well as of the authorities to which reference has been made, it must be held that the signing of the note in question by Otto Meals as maker after its delivery to the Bank was a material alteration thereof,' and that as such alteration was made without the knowledge or consent of defendants J. Marvin Meals and Cottingham their obligations were thereby discharged. This conclusion renders it unnecessary to consider the further defense of duress pleaded by these two defendants.
*1169It is argued by appellant that, as the note Avas given for an existing partnership indebtedness and had been signed by two of his partners, its signing after delivery by the third partner did not work a change in the number or relationship of the parties. But it is obvious that the parties who were liable on the original indebtedness and the parties to the note were not the same. There was no necessary relationship between the two. Otto Meals was liable for the original debt, but J. Marvin Meals and Ernest Cottingham were not. The latter were obligated on the note, but Otto was not prior to his signing it. The mere fact that Otto continued to be liable for the partnership debt after a note therefor had been executed by other parties did not make him a party to the note. This seems too plain for discussion.
The judgment of the circuit court was erroneous as to the defendants Otto Meals, May Meals and Logan Meals. When Otto Meals signed and redelivered the note to the bank that was, in effect, the execution of a new note (Rhoades v. Leach, 93 Iowa, 337); and it was supported by a sufficient consideration, in that it was given for an antecedent or pre-existing debt. [Sec. 812, R. S. 1919.] May Meals was an accommodation maker, but it was not necessary that any consideration should have moved to her. The consideration which supports the promise of an accommodation maker is that parted with by the person taking the note and received by the person accommodated. [Marling v. Jones, 138 Wis. 82.] This defendant did not plead alteration of the note in avoidance of her obligation; presumably it was done with her knowledge and consent. Logan Meals filed no answer and judgment should have gone against him of course.
The judgment of the circuit court is reversed and the cause remanded'with directions to that court to enter judgment in favor of plaintiff, according to the prayer of its petition, as against the defendants Logan Meals, May Meals and Otto Meals; but for the remaining defendants.
The costs of this appeal will be taxed against the respondents, Logan Meals, May Meals and Otto Meals.
All concur, except Gantt, J., not sitting..