According to https://www.delightedcooking.com/when-was-the-first-drive-thru-restaurant-created.htm it was created in 1947 by Sheldon "Red" Chaney, operator of Red's Giant Hamburg in Springfield, Missouri.
According to https://www.rvtravel.com/how-it-happened-drive-window-1036/ it was because enlisted military couldn't be allowed to be seen in public in their work uniforms.... so a McDonalds in Arizona near Fort Huachuca realized in 1975 they could increase sales by cutting a window into a wall, and letting the nearby Army base soldiers buy food without getting out of their cars.
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ReplyDeleteSpringfield MO Red's Giant Hamburg, US66, 1947.
ReplyDeletehttps://www.delightedcooking.com/when-was-the-first-drive-thru-restaurant-created.htm
https://www.route66news.com/2010/11/14/so-who-had-the-first-drive-thru-restaurant/
Looks like there were several before this McDonalds.
thanks!
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