Mr. and Mrs. North

Fictional American amateur detectives created by Frances and Richard Lockridge. The characters originated in 1930s vignettes written by Richard Lockridge for the New York Sun. He teamed with his wife Frances on a novel, The Norths Meet Murder (1940), launching a series of 26 novels. Their long-run series continued for over two decades and came to an end in 1963 with the death of Frances Lockridge.