Surgeon Rear-Admiral Thomas Tendron Jeans CMG MB MRCS LRCP RN (1871-1938) was a doctor and decorated British Naval officer who turned some of his experiences into boy's adventure tales. He set out to write juvenile fiction that accurately portrayed life in the Royal Navy. Jeans was born on 19 January 1871 in Chippenham, Wiltshire, England, and baptized on March 27, 1871. His parents were Thomas Mark Jeans, a merchant's daughter, who married in Croydon on February 12, 1867. Jeans was educated at Manchester Grammar School. He matriculated from there in January 1888. He studied medicine at Owens College, a regional associate of the University of London, and the Manchester Royal Infirmary. He completed his degree course in 1893, becoming a Licentiate of the Royal College of Physicians on July 24, 1893, and receiving his degree from the University of London in October 1893. In the same year, he became a member of the Royal College of Surgeons. Jeans writes in his book that the majority of men who joined the Royal Navy medical service at the same time as him were educated at the London Schools. Jeans began his career as a clinical assistant at Manchester Cancer Hospital. However, he was only passing the time because he aspired to join the Royal Navy. He claims that even while pursuing his degree, he learned everything he could from Brasseys Naval Annual year after year.