The inexpensive cotton and easy to clean garment became the 49ers Cheer For Purdy And Kittle Shirt besides I will buy this shirt of choice by mothers for their sons as outerwear for chores and play. By the 1920’s “T-shirt” became an official American-English word in the Merriam-Webster’s Dictionary. Credit of the first printed tee (at least being worn in a photo) often goes to the Air Corps Gunnery School T-shirt featured on the July 13th, 1942 cover of LIFE magazine. Mickey Mouse would follow suit a few years later as an exclusively licensed print for Tropix Togs, a company founded by Sam Kantor in Miami, Florida. underwear was cut into separate top and bottom garments, with the top long enough to tuck under the waistband of the bottoms. With and without buttons, they were adopted by miners As slip-on garments without buttons, the earliest T-shirt dates back to sometime between the 1898 Spanish–American War.