The pseudonym of New York University college professor Rudolf Hornaday Kagey (1904-1946) between 1935 and 1943 wrote ten detective novels, nine of which concerned the crime-busting exploits of Hank Hyer, a tough former boxer turned private eye.
BIOGRAPHY (via Wikipedia; NB: We have found this to link to the wrong person, occasionally.
It will be obvious when this has happened.)
Angelica Gibbs (1908 – 10 January 1955) was an American writer of short stories and contributions to magazines like The New Yorker. She was born in Baltimore, Maryland.