W.A. Dwiggins is familiarly known today as WAD, but occasionally in the past he was referred to by colleagues as Dwig. This nickname can be confusing since it was the professional name of his first cousin Clare V. Dwiggins (1874–1958), an illustrator and cartoonist. 
A young Clare Victor Dwiggins (n.d.). Courtesy Special Collections, Boston Public Library.
“The cartoonist.” From School Days by Clare Victor Dwiggins (New York and London: Harper & Brothers, 1919).
Clarence Victor Dwiggins was born …