William Rufus DeVane King, senator from Alabama and Vice President under Franklin Pierce.
Likely named after Rufus King, signer of the Constitution, VP Candidate of the Federalist party against both Jefferson and Madison’s tickets, last Presidential candidate of the Federalist Party.
Thanks - interesting reading up on him. And Pierce County named after President Pierce. And to bring it back to the slaves/black names - William Rufus DeVane King was one of the largest slave holders in Alabama (country?) at the time.