I have a Henry Gramm (also recorded as Graham), married in Tuscarawas, OH, on 7/13/1820, to Rachel Prindle. I am descended through their daughter, Lovina "Mary" Gramm (Graham), b. 9/4/1834, Gnadenhutten, Tuscarawas County, OH, m 5/14/1854 to James T. Laizure in Tuscarawas County, OH. The family later moved to Iowa.
If you think there is a connection, please let me know.