1991, Kathryn Lasky, Double Trouble Squared, Harcourt Brace Jovanovich (1991), , page 159:I would have settled for a Watsonish role. I don't have to be the main character.
2012, Philip Tallon, "Watsons, Adlers, Lestrades, and Moriaties: On the Nature of Friends and Enemies", in The Philosophy of Sherlock Holmes (eds. Philip Tallon & David Baggett), University Press of Kentucky (2012), , page 66:This element is also picked up by Thomas Aquinas (whose philosophy sometimes has a Watsonish quality in relation to Aristotle, whom he calls simply “The Philosopherâ€).