William Henry Thorpe was born in 1839 in Cincinnati, Ohio, according to his burial records in Hecla, SD (d. 1909).
I am hitting a brick wall.
He is born and the next time I see him is in 1862 when he marries Elmira (sometimes Almira) Severse Putney (sometimes Putnam). Following I have censuses, burial, etc. But I have not been able to find his parents. The Lyman E. Thorp family is at the least not immediately related.