Looking for Sproules of Fredericksburg West Leipsic Ohio

We have been given transcribed letters from our great great grandmother to her sons Andrew and William Sproule, who emigrated to Ohio from Northern Ireland around 1830-40s. They lived in Fredericksburg Ohio until the 1880s and then moved to West Leipsic, Ohio. If you have any information about Andrew, William or their families, I would be interested to hear from you.