1930 census, Toledo, Lucas, OH, renting at 812 Elm Street: head, Donald MCMAVIN, 40, first md at 38, Italy IT IT, immigrated 1893, naturalized, die maker-machine shop wife, Sadie, 41, first md at 18, OH Canada Canada sdau, Ruth HARCOURT, 19, first md at 16, OH OH OH, sales lady-department store sson, William SEIFERT, 15, OH OH OH sdau, Hazel SEIFERT, 13, OH OH OH sson, Edward SEIFERT, 11, OH OH OH gson, Robert J. HARCOURT, ?9/12, OH OH OH
The index says Donald's surname was McMavin, which doesn't sound Italian to me and I'm not sure how to locate him in any earlier censuses either.
A Robert J. HARCOURT, b 9 Jun 1929, d 9 Aug 2001. His obit was published in the "Cleveland Plain Dealer" on August 11, 2001. Check the "Necrology File" link at http://www.cpl.orghttp://www.cpl.org on how to get a free copy of his obit.