Joan Coggin

Joan Coggin was born in 1898 in Lemsford, Hertfordshire, the daughter of the Rev. Frederick Ernest Coggin. Her mother, who was the daughter of Edward Lloyd, founder of Lloyd's Weekly London Newspaper, died when she was eight, and the family moved to Eastbourne, where Coggin lived until her own death in 1980. She was educated, together with her sister Enid, at Wycombe Abbey, a setting she would later use for her girls' school stories, written under the pseudonym Joanna Lloyd.

Leaving Wymcombe in 1916, Coggin became involved in the war effort, working as a nurse at Eastbourne. After the war she worked with the blind, and returned to her schoolgirl interest in Guiding. She suffered from a mild form of epilepsy, but aside from the inability to drive, it did not greatly impact her life. Her first novel, And Why Not Knowing, was published in 1929, and was followed by a series of mysteries featuring the amusingly inadvertent detective, Lady Lupin Lorrimer.