Jean: The reason my correspondent in New York was researching the Leemans was because Nancy Jane Leeman was his great grnamother.
Her daughter Mary Cornelia Hoppins, born 13 Sep 1863 in Bedford township, and died 29 Feb 1929 in Natural Bridge, Lewis County, New York State. Mary's husband was Harvey Warner Snider, born, 26 March 1860 Portland township. Frontenac County, Ont & he died 25 Dec 1910 Denbigh Township, Addington County.
Their daughter Luella Amanda Snider, born 2 Jan 1902 in Denbigh township married Morris Sykes of St Lawrence county, N.Y. and they lived in New York and were the parents of my correspondent, Floyd Snider Sykes who was born in 1919. I have more - (going back) Dan Leeman