found: Zubrowski, B. Raceways, 1985:CIP t.p. (Roy Doty)
found: LC data base, 8-20-84(hdg.: Doty, Roy, 1922-)
found: Wolfe, L. Easy economics, c2012:t.p. (illustrations by Roy Doty)
found: Roy Doty, 2011:t.p. (Roy Doty) p. 5, etc. (born in 1922 in Chicago)
found: Wikipedia, viewed Aug. 4, 2021(Roy Doty (September 10, 1922 - March 18, 2015) was an American cartoonist, artist and illustrator. He created humorous cartoon illustrations for books, packaging, advertising, comic strips, television and not-for-profit organization campaigns) - https://en.wikipedia.org/wiki/Roy_Doty