William Sidenfaden moved to Boise in 1906 and began a partnership with undertaker Adolph Schreiber. Schreiber, formerly of the mortuary firm Schreiber & Brennan, was reelected coroner of Ada County, Idaho, in that year and continued as Sidenfaden's partner in the new firm, Schreiber & Sidenfaden, Funeral Directors and Licensed Embalmers.[3]