 The publisher, Charles Scribner's Sons, had begun to issue supplements chronicling events in American history since the original set was published, and Vincitorio co-edited Volume 8 ("Challenge and Conflict"), and then edited Volumes 9 ("The Record of 1970-71"), 10 ("The Record of 1972-73"), and 11 ("The Record of 1974").He also contributed articles to the "Catholic Encyclopedia for School and Home" (McGraw-Hill, 1965), "The New Catholic Encyclopedia" (McGraw-Hill, 1967), and "The Italian American Experience