When Eugene P. Sheehy took over as head of reference at Columbia in 1967 he took on the Guide. Having worked as Winchell's assistant for several years Sheehy adopted her style, process of selection and organization as his own. He began issuing supplements to the Guide, with versions in 1968, 1970, and 1972. The supplements expanded on the entries of Winchell's eighth edition, adding indexes of material newly published or newly discovered. A new ninth edition, which required Sheehy and his two assistants to update and correct entries from Winchell's edition and add in material from their three supplements, was finally published in 1976. This ninth edition was the first version to include listings of early electronic databases. Sheehy continued editing and publishing supplements until he retired in 1986.