One who procured substitutes in the Civil War. (Compare with this BOUNTY-JUMPER.)
1863. [There arose] a new kind of trader, called a substitute broker. As soon as it seemed to be understood that the Government was determined to force men into the army whether they would or not,that it was not going to rely on the willing soldier alone,these substitute brokers made their appearance.Mr. Edgar Cowan of Pa., U.S. Senate, Feb. 4: Cong. Globe, p. 714/3.