Hedda Hopper was a former actress who later became a gossip columnist.
The title of this book refers both to a well known expression and the author's association with hats. Hedda Hopper was a gossip columnist who was supposedly always telling secrets. As a matter of fact, the name of her column was "Under My Hat". She also wore a lot of fancy hats.
Thelma Todd as well as William Desmond Taylor is mentioned where she discusses the death of Paul Bern.
Her son William Hopper played the character of Paul Drake on PERRY MASON, and can therefore be considered to be associated with the White Brothers as Sam White was involved in the production of that series.
FROM UNDER MY HAT: