Journeyman Steamfitter; Superintendent, Clark Steam Heating Company, Seattle, WA, and Portland, OR,, c. 1887; President, Seattle Heat and Plumbing Company, Seattle, WA, c. 1890-07/01/1912; Ayers's company merged with Rautman Plumbing and Heating in preparation for the giant commission for the L.C. Smith Tower on 07/01/1912.