In 1779, Mary HAMRICK appears in the will of her father, John SIAS, which it was proven in Fauquier County, Virginia. Benjamin's name appears on Prince William County, Virginia tax lists in 1783, 1785, 1787, 1788, 1790, and 1793. He appears to have died in Prince William County, Virginia around 1794.
Benjamin appears on the 1747 Dettingen Parish Tithable List with his father which indicates that he was over 16 and under 21. On October 18, 1751, Benjamin HAMRICK was a witness on a deed which implies that he is at least 21 years old. Around 1750, he marries Mary SIAS (aka SEIRS), daughter of John SIAS, in Prince William County, Virginia. Benjamin's name appears in public records again in 1763 and 1769.