Teardrop history

The March/April, 1939 issue of Popular Homecraft ran a story and plans for a teardrop trailer designed and built by Louis Rogers of Pasadena, California in the 1930's for his honeymoon coach.
https://td.roughwheelers.com/articles_and_plans/Pop_Mech_1940/index.html  for the entire article and prints

 This teardrop slept two and had the raise-up deck lid for the rear kitchenette with ice box and stove. A curtain-enclosed dressing room outside the starboard entry door provided privacy while dressing.

 The February, 1940 issue of Popular Mechanics ran a story and plans for an egg-shaped teardrop trailer. It was built on a 1924 Chevrolet Superior front axle with disk wheels from a 1930 Chevrolet. The floor was of tongue-and-groove oak over a spruce chassis. The exterior was 1/8" pressed board sealed with varnish. This 9'x5'9-1/2" floor plan featured a pressurized water tank with running water to a sink, a stove and ice box in the rear kitchenette. The cabin provided standing room beside the double bed for dressing, a small clothes closet, a chemical toilet and a single entry door on the starboard side.

 Then in October of 1945, Kit Manufacturing Co. came along and began selling them

http://haw-creek.com/trailer-for-two/