Manvel Humphrey Davis (April 7, 1891 – February 10, 1959) was a member of the Missouri House of Representatives and Missouri State Senate.[1][2] Davis, a Republican, challenged Harry S. Truman in the 1940 election for re-election after the collapse of the big city machine of Truman's patron Tom Pendergast.
Truman had squeaked through the Democratic primary when his opponents Lloyd Stark and Maurice Milligan who had campaigned against Pendergast both entered the race splitting the anti-Pendergast vote (the two combined had more votes than Truman).
During the General Election Truman was named Grand Master (Masonic) of the Grand Lodge of Freemasonry in Missouri in September 1940.[3]
Truman was to say later that the election to become Grand Master was to be the deciding factor in the election over Davis:
Davis was born in Greensburg, Kansas. He died in Kansas City, Kansas and is buried in Mount Washington Cemetery in Kansas City.