found: His Old tiger, new tiger, c1978:t.p. (Ron Roy) CIP data sheet (b. Apr. 29, 1940)
found: His Awful Thursday, 1979:t.p. (Ronald Roy)
found: His A frog is a frog, c1980:t.p. (Ronald Roy)
found: Phone call from publisher E.P. Dutton, 5/4/81(author prefers to be entered as Ron Roy)
found: Wikipedia, Mar. 24, 2022(Wallace Ronald Roy (born April 29, 1940), is an American writer of children's fiction, primarily mysteries for young readers. He is best known for the series A to Z Mysteries (from 1997), Capital Mysteries (from 2001), and Calendar Mysteries (from 2009).)