Here are research notes that may help:
NOTE: James Calvin Sly's ancestor. Living in Groveland, Ontario, NY, in 1790 census Brothers Christopher, Benjamin and Joshua
LaCrosse Co., Wis., History page 586 - benj born Jefferson Co., NY grandfather of Benjamin Sly Joshua was granted land in Canada in June 20, 1798. He obtained 190 acres in Markham Township patented to him in 1803. He was on Petty Jury at York
(Toronto) in 1801. He had 2 children at that time.
Candian records - Joshua Sly was accused july 14, 1810 by Scarborough path masters for failing to perform Stature labour.
Our James Calvin was born in NY in 1807.
Joshua, Sr., is found in Bristol and Phelps townships in Ontario Co., NY in 1814 in 1825. In Kirtland, near Cleveland, Ohio in 1837, in Avon Township, Oakland Co., MI in 1841 and in Summit, Co., Ohio in 1849
1840 Census in Mentor, Lake county Ohio (near Kirtland and Cleavland)
Joshua Sly contracted for land from the Holland Land compay in 1832, T7, R 5 ,Lot 14 and 15. two contracts for 150 acres. Made payment of $30 against the purchase pirce of $600. Joshua sold property in Ohio in Dec. 1849
Joshua Sly was born in 1774 in Sodus Wayne Co. NY.;but it wasn't a town yet. His Father is Benjamin Sly.
DelEthing@aol.comLetter from Susannah Gustin Sly to Dau Susannah Barnum,
listing children and wives. Joshua, Jr.'s pension records. Caleb's
pension records, Ohio Census, Pickaway Co. 1850. Gideon's marriage rec.
Joshua md 1) Lucretia Calkins, lived in Canada. Div.
Children: Solomon; Benjamin, b. 10 Jan 1796; Martha Lavina Sly.
Joshua md. 3) Lodicia; Ammer Jane; Joshua Jr., Caleb B; Gideon Sly.
First wife, Lucretia Calkins md 2) Joseph Thornton (a Mormon) desc.
came to Utah.
1840 Census in Mentor, Lake county Ohio (near Kirtland and Cleavland)
Still need to check Newspapers for obituaries
Ontario County NY records and archives center: Ontario County Deeds Index (SH toSL) 1789-1845 - visited in 11/2004, John Sly has copies of Deeds
In 1813, 1814, 1816, was Grantee for land in Bristol Township, Ontario County, NY - Liber 32, page 233,235,236,237 - filed in 1819
In 1817, Joshua Sly was Grantee for land - Liber 27, page 149
In 1819 Joshua sold land -Liber 32, page 234,235
In 1821, Joshua Sly sold land deeded by John Hall to Christopher Sly. 21 acres in the town of Phelps, county of Ontario for $600. - Liber 41, page 238
Living in Franklin, Ross, Ohio in 1850 census