The #1 song on August 20, 1945

On the Atchison, Topeka and the Santa Fe By Johnny Mercer

Other #1 songs on August 20, 1945

#1 R&B Song

Who Threw the Whiskey in the Well
Lucky Millinder and his Orchestra

#1 Country Song

You Two-Timed Me One Time Too Often
Tex Ritter

Notable August 20 birthdays in the 1940s

Ralf Hutter
Pop Singer
Born August 20, 1946
Robert Plant
Rock Singer
Born August 20, 1948
Ray Wise
TV Actor
Born August 20, 1947
Sylvester McCoy
TV Actor
Born August 20, 1943
Graig Nettles
Baseball Player
Born August 20, 1944