It's a good trick: Ruby Keeler limbers up on her bike before making a speed run to the Warner Studio to film a dance number for her new picture, "Dames." Warner Bros photo by Scotty Welbourne, No. RK.PUB.A78, 1934.
Ethel Hilda "Ruby" Keeler was born in Dartmouth, Nova Scotia on August 25th. Most sources, including IMDB, lists Ruby's birth year as 1909, which would make 98 years. The biography written by her friend Nancy Marlow-Trump, however, lists Ruby's birth year as 1910.
One of these days I'll try to track down official birth registrar records from Halifax/Dartmouth and get a confirmation.
Ruby died in 1993, but she lives on in the hearts and films of her adoring fans. Happy Birthday Ruby!