The wife was a witness and testified to the fact of her ownership of the claim. Fowler v. Blount, supra, was cited and followed in Oxford v. Berry, 204 Mich. 197, 209. See, also, Warner v. Comstock, 55 Mich. 615; Shapero v. Gassel, 253 Mich. 28; Welch v. City of Lincoln Park, 268 Mich. 440. In Grand Rapids Milk Producers Ass'n v. McGavin, 295 Mich. 477, to which counsel for defendant calls attention, the action was brought by an agent to whom an undisclosed principal had assigned the claim.