There are some copies of Thelma Todd's hand-written letters in the FBI files. Here are a few notes and letters in her own writing.
This one appears to be a note sent to a fan, possibly along with the photograph.
A note to Thelma Todd's friend Billie Dove, dated 1929.
The note to Billie Dove, at a larger size.
Letter on a menu from Thelma Todd's Sidewalk Café.
Letter on "Joyita" stationary. The Joyita was Roland West's yacht,
which was used in the movie CORSAIR in 1931.
A letter to Zasu Pitts, which was published in MODERN SCREEN in 1931.