The venture was a success, and in 1929 she opened Ruby Foo's Den, a restaurant and nightclub, at 6 Hudson Street.

[4] Foo was married three times and had two children, Earl and Doris Shong.

According to the Boston Globe, after seeing the famous "Bloody Saturday" photograph of a crying baby in a bombed-out Shanghai railway station, she arranged to have the baby brought to the U.S., where she adopted him in 1938, naming him Ronald.

[5][6] Foo died of a heart attack in her Jamaicaway home on March 16, 1950, aged 42[clarification needed].

[5] Her funeral was attended by prominent city and state officials, as well as "stage, screen, and radio personalities".