Author: Henrietta Hamilton
Alternate names: Hester Denne Shepherd; Hester Denne; Hester D Shepherd; Hester Shepherd; H D Shepherd
Born: 1920
Died: 1995
Bio: Henrietta Hamilton is the pseudonym under which **Hester Denne Shepherd**  wrote four books featuring amateur detectives Johnny and Sally Heldar. She was born in Dundee (Scotland)‏ in 1920 and passed away in 1995.

"During the Second World War, she served in the Wrens. Afterwards, she worked in a London bookshop, gaining first-hand experience of antiquarian bookselling, which is the background of her crime-solving duo." [from article in The Bookseller linked below]