My line has Gabriel Benn b 1802 VIR died 1876 in Washington Iowa. He married Jane BROWN b 1803. My records show they were married in Frederick County VIR.Gabriel's last name was spelled BEEN on the marriage cert that I have a copy of. Not sure if this is a tie in to your Benn's. Have not been able to trace any siblings or parents of Gabriel. These parents had 6 known children: Horatio, Jane, Rachel, Samuel, John and Susie. Not sure where Frederick's County is but, rumor had it they were really from Isle of Wright County.