William Fortescue Kingdon was one of three Kingdon brothers to serve the Lodge. William was the youngest of the eleven children born to Paul Augustine Kingdon. He was born in in 1874 and went to Rugby along with his elder brother Philip (the sixth son). He never married.

He was initiated in February 1901, aged 27, alongside his older brother Everard William Kingdon, by their elder brother Major Henry Kingdon.

William was a a professional organist and musician. Kingdon was a friend and assistant to Sir Walter Alcock, held the Fellowship diploma of the Royal College of Organists (1896), and earned a Bachelor of Music degree from 1906 whilst living in London. He moved to Colchester around 1916 to be organist at St. Mary-at-the-Walls, now Colchester Arts Centre, from the early 1920s until 1950.

He served as Lodge Organist from 1902 to 1905, whilst also serving a JD and the subsequent offices from 1904. He was installed as Worshipful Master in 1909.

He joined the RAF during the War and worked at the Air Ministry.

William passed away on 27 February 1958.