sentences:  In 1837, Farnsworth left the firm to become chancellor of the chancery court of Michigan and with the addition of Samuel T. Douglass, the firm became Bates, Walker & Douglass.The firm of Walker & Douglass continued after Bates' departure for several years until they were joined by James V. Campbell.Both Campbell and Douglass served terms on the Michigan Supreme Court and both Farnsworth and Walker served as Michigan Attorney General.