William M. Hancock (died 1891) was a judge[1][2] and state legislator in Mississippi.
[4] In 1877, it endorsed his nomination to be deputy collector noting his service during Democrat and Republican state governments.
[6] Hancock served in the provisional legislature in 1870 as president pro-tem of the Mississippi State Senate.
[7][8] John R. Lynch's book on Reconstruction reported him to be the only Republican legislator to vote against Hiram R. Revels as nominee to the U.S. Senate.
Lynch said Hancock believed an African American could not legally serve in the body.