I have a Joseph Leboeuf b in Canada Oct 1829,d apr 1904 in Malone, Franklin Co, NY,married Sophia Gibault(Yubo) about 1862; she was b May 1837 in NY state, d June 1902 in Malone. Some of the children were Phebe b 1863, Clara b Nov 1864, George b May 1867, Minnie b Mar 1869, Cordelia b July 1872. Cordelia (my ggrandmother)m Horace Mosier in Aug 1892 in Malone. Joseph's mother's name was Lucy. I don't know his father or where in Canada they came from. Do these fit with your line?