Listed as a draftsman working for Frank S. Van Trees, Architect, San Francisco, CA, 1905; Caig was listed as living in Oakland, CA;

George A Caig Age in 1910: 24 Estimated Birth Year: 1885 Birthplace: California Home in 1910: 7-WD OAKLAND, ALAMEDA, California Race: White Gender: Male Series: T624 Roll: 71 Part: 4 Page: 181B Year: 1910

Middle initial is listed variously as "A" or "H;" possible relatives: Ann Caig, (b. circa 1852 in New Brunswick, Canada-d. before 1920) listed in 1880 Federal Census as a housekeeper; David Caig, (b. circa 1848 in Scotland) listed in Langley's San Francisco, California General & Business Directory for 1880 as a carpenter living in Oakland, CA; David Caig was listed as being retired in the 1920 Federal Census and was living with his two sons and two daughters, including George Caig, a building contractor, who was 33 in 1920;