I think he and Jane are in the 1920 and 1930 Cleveland censuses. In the 1920 William (born abt 1878 in Canada of a scottish-born father and a canadian-born mother) and Jane (born abt 1879 in english Canada of French-Canadian-born parents. William sayes he emigrated to the US in 1900 and Jane says she emigrated in 1905. They were married about 1907. In the 1920 census, they have 4 children; Isabella (age 10 and born in Canada, so did they go back to Canada at some point and have here there or was this a mistake on the census-taker's part?), Evelyn(age 8), Robert(age 6), and Melba (age 2). By the 1930 census, there are no children in the household.