J. Jefferson Farjeon

The prolific UK author and playwright Joseph Jefferson Farjeon was born into a family of writers (Wikipedia), father Benjamin, sister Eleanor, brothers Herbert and composer Harry. Under his own name and pen names such as Anthony Swift, he wrote over eighty novels, mainly mystery and detective novels (GADetection, GoodReads, IMDB).

• Mystery in White
  Mystery in White 1938
• Thirteen Guests
  Thirteen Guests 1936