(1) John (William John) Donaldson, b. 1958, American chess grandmaster, author of Akiva Rubinstein: Uncrowned King.
(2) D. J. (Don John) Donaldson, author of New Orleans Requiem.
(3) John Donaldson, author of Living with asthma and hay fever.
(4) John Donaldson, b. 1936, author of Key Issues in Business Ethics.
(5) John S. (John Sydney) Donaldson, b. 1959, author of Grow Cycads.
(6) John Donaldson, author of Opening the Doors to Family Tree Maker
(7) John Donaldson, b. 1930, Scottish-Canadian neurological biochemist, author of A Canoe Quest in the Wake of Canada's Prince of Explorers
(8) Dr. John Donaldson, author of An Analysis of David Hume's Dialogues Concerning Natural Religion