found: Mandelbaum, A. A lied of letterpress for Moser and McGrath, 1980:t.p. (McGrath) colophon (Harold McGrath, pressman, Pennyroyal Press, [West Hatfield, Mass.]; his pencilled signature: H.P. (or R.?) McGrath)
found: Carroll, L. Lewis Carroll's Alice's adventures in Wonderland, c1982:p. 149 (Harold McGrath)
found: H.P.M., 1991:t.p. (H.P.M., Harold Patrick McGrath, Harold P. McGrath, H. Patrick McGrath, H.P. McGrath, Harold McGrath ..., Haraldo, Hal, H.P. McGraw, HPMcG, Harold Pee McGrath, Harold Parcells McGrath, Macman, Mac, Macaroni, McGraw ..., Harold Pee Magister Luducrous, Horace, McGee ..., Ole Weird Harold, Ham, Pat, Harry, Coach ..., Poppie)
found: The lord of letterpress: Harold Patrick McGrath, 1921-2000, 2002
found: Ancestry.com, 23 July 2012(U.S. City directories: Harold P. McGrath, 1950-1963 living in Northampton, Mass. as printer, with spouse Cecelia E. McGrath; Massachusetts Death Index, died 14 November 2000 in Northampton; born 17 November 1921, Massachusetts; spouce, Cecilia E. Diemand)
found: The Harold P. McGrath Collection of the prints of Leonard Baskin, 1987:page 3 (Harold McGrath; began printing for Leonard Baskin at The Gehenna Press in 1956; after the Gehenna Press moved to England in 1973 he continued as pressman at Barry Moser's Pennyroyal Press)
