Sorry, it was Louis A. BARBEAU in the 1920 census. He was 77, widow, bp Canada, immigrated in 1858, naturalized 1870 and was a carpenter. Minnie was his daughter, 31, single, bp OH, mother's bp OH. "Leonard" is incorrect.
The 1910 Ohio census for Toledo ED136, shows Louis' wife's name as Mary, then age 50, bp OH. Two daughters are listed; Gertrude NOMS, 33, bp OH and Minnie, then age 21. ED136 was in the same general area as Moore street, where Louis and Minnie lived in 1920.
There was a Louis A. BARBO in the 1880 census in Defiance, Defiance, OH. He was 37, bp Canada, both parents b Canada and was a carpenter. Other household members were: wife, Mary, 26, bp OH, both parents b OH dau, Gertrude, 4, bp OH dau, Nellie, 1, bp OH (This is the only reference to a daughter Nellie. She may have left the family by 1910)
No, don't call anyone yet. I have researched St. Mary's records and they are not easily accessible; not as easy as reading the library's films.
I can call (locally) Calvary next week and get the full scoop on any PROSPERs or BARBEAUs buried there.
It could be interesting to follow up on Gertrude Barbeau NOMS.