Robert O'Brien (4) (1932–)

according to "http://catalogue.nla.gov.au" this author was born in 1932 and according the "http://authorities.loc.gov" his full name is Robert Alfred O'Brien.

"O'Brien has worked most of his life in the reference book field. His credits include editing the four-volume Encyclopedia of Drama published by McGraw-Hill and the Basic Guide to Research Sources. While he was editor-in-chief of Morningside Editorial Associates of Pleasantville, NY, he was responsible for The New York Times Crossword Puzzle Dictionary, the Illustrated Dictionary of Place Names: the United State and Canada, and the 1967 edition of the New York Times Index. "The Day", Nov. 3, 1981"