The Penny Parker Mystery Stories of 17 books were written by Mildred A. Wirt Benson and were published by Cupples and Leon from 1939 to 1947.
Penny was a high school sleuth who also occasionally moonlighted as a reporter for her father's newspaper. Benson favored Penny Parker over all the other books she wrote, including Nancy Drew. Her obituary quoted her as saying, "I always thought Penny Parker was a better Nancy Drew than Nancy is," Mrs. Benson said in 1993.**