 After the war Minnitt returned to the General Post Office, later working as a welder with a taxi firm before becoming an artist.A completely self-taught cartoonist, around 1920 Minnitt began to contribute single joke cartoons to the comics of the Amalgamated Press (AP).Subsequently, his work appeared in various titles including "Comic Life", "Joker", "Merry & Bright", "Butterfly", "Jolly" and "Sparkler".