William Allen Robertson (October 22, 1837 – October 26, 1899) was President of the Louisiana State Senate and Acting Lieutenant Governor for two and a half months in 1881.
Robertson was a state senator representing St. Landry Parish.
During the 1876 presidential election, Robertson, a prominent supporter of Democratic nominee Samuel J. Tilden, was accused of offering a bribe of $200,000 to federal election officials to fraudulently deliver Louisiana's electoral votes for the Democrats.
[1] Robertson was serving as President of the Senate when Governor Louis A. Wiltz died in 1881.
He was removed as President of the Senate and Acting Lieutenant Governor by a vote of that body on Dec. 24, 1881 and was replaced by Senator George L.