Today's OED antedating: "workman's compensation"

Workman's compensation, in U.S., mandatory insurance scheme covering job-related injuries ("workman," sec 6, first use cited 1921): Item titled "The World's News in Today's Times," by anonymous, Los Angeles Times, June 29, 1914, p 1, col 2: "Extension of the workmen's compensation act is proposed in the State of Washington."

(With best of luck and anticipatory congratulations hereby tendered to DB)