I ran across this History on a Downey Blog Page. Some of you may not know or you already do but the oldest still-functioning McDonalds restaurant in America is in Downey, California. A man named Ray Kroc approached the McDonalds brothers about creating franchises, and eventually opened his own McDonalds franchise in Illinois in 1955. (Kroc also tried - and failed! - to get a McDonalds restaurant into the Disneyland, based on his wartime friendship with Walt Disney.)
Its kinda Funny that the Fries made it at the DLR.