De Waal, Ronald Burt. The world bibliography of Sherlock Holmes and Dr. Watson, 1974.

Doyle, Arthur Conan. The complete Sherlock Holmes, via Internet Archive, viewed May 15, 2014: page 5 (John H. Watson, M.D., late of the Army Medical Department) https://ia801600.us.archive.org/17/items/SherlockHolmesComplete_201303/SherlockHolmesComplete.pdf

Meyer, Nicholas. The seven-per-cent solution : being a reprint from the reminiscences of John H. Watson, M.D., 1974.

Lewis, C. Alfred, Sr. Dr. John H. Watson's last chronicles,

Zeisler, Ernest Bloomfield. Baker Street chronology : commentaries on the sacred writings of Dr. John H. Watson, 1953.

Hardwick, Michael. The private life of Dr. Watson : being the personal reminiscences of John H. Watson, M.D., c1983.

Encyclopædia Britannica online, May 15, 2014: Dr. Watson (Dr. Watson, in full Dr. John H. Watson, fictional English physician who is Sherlock Holmes's devoted friend and associate in a series of detective stories and novels by Sir Arthur Conan Doyle. Watson, born in 1852, has served as an army surgeon in India, where he was wounded during the second Afghan War, and has returned to England in impaired health. He and Holmes meet in London; they share rooms at 221B Baker Street. The medical practice Watson establishes does not prevent him from accompanying Holmes on his crime-fighting cases, which he later records and publishes.)

Wikipedia, May 15, 2014: Dr. Watson (John H. Watson, known as Dr. Watson, is a character in the Sherlock Holmes stories by Sir Arthur Conan Doyle. Watson is Sherlock Holmes' friend, assistant and sometime flatmate, and the first person narrator of all but four of these stories; Dr Watson's first name is mentioned on only three occasions. Part one of the very first Sherlock Holmes story, A Study in Scarlet, is subtitled Being a reprint from the Reminiscences of John H. Watson, M.D., Late of the Army Medical Department. In "The Problem of Thor Bridge", Watson says that his dispatch box is labeled 'John H. Watson, M.D'. Mary (Watson's wife) calls him 'James' in "The Man with the Twisted Lip"; Dorothy L. Sayers speculates that Mary may be referring to his middle name Hamish (an Anglicisation of Sheumais, the vocative form of the Scottish Gaelic for James, Seumas), though Doyle himself never addresses this beyond including the initial; gender: male; occupation: physician; title: Doctor; nationality: British; born around 1853)

Baker Street wiki, May 15, 2014 (John Watson; Dr. John H. Watson was a medical doctor, formerly in the British Army. He was married to Mary Watson and was the (arguably only) friend and confidante of Sherlock Holmes; had served in the British Army medical corps in Afghanistan, but was discharged following an injury) http://bakerstreet.wikia.com/wiki/John_Watson

IMDb, May 15, 2014 (Dr. John Watson (Character); from "Sherlock" (2010); Dr. James Watson is a veteran who served as an Army medic in Afghanistan and is traumatized by what he saw; Alternate Names: Docteur Watson / Doctor John H. Watson / Doctor John Hamish Watson / Doctor Watson / Doktor Uotson / Doktor Vatson / Doktor Watson / Dr Watson / Dr. Joan Watson / Dr. John H Watson / Dr. John H. Watson / Dr. John Hamish Watson / Dr. Mildred Watson / Dr. Watson / Joan Watson / John H. Watson, M.D. / John Watson / Le docteur Watson / Older Watson / Watson)

Hennepin (Watson, John Hamish, born 1852 and variants)

Olderr, S. Mystery index, c1987: page 491 (Watson, John H.)

Pringle, D. Imaginary people, c1987: page 485 (Watson, John H.)

The personal blog of Dr. John H. Watson, viewed May 15, 2014 http://www.johnwatsonblog.co.uk/

Dilloway, M. Ghostwriter. The mysteries of Sherlock Holmes, ©2020: back cover (features a gender-swapped version of Watson, Dr. Joan Watson, in adaptations of classic Holmes stories)