Gregory is associated with Ashley W Digennaro, Stacy E Nathanson, Alison S Rock, Andrew George Rak, Angelo T Cometa, Barrett Sadock, Betty Jane Cometa, Bradley J Starkweather, Brenda E Najda, Brett I Ladin, Carole Anzalone Newman, Charles C Hamilton, Christopher J Hoffman, Claudine Messuri, Daniel M Rootenberg, David Wenger, Donald J Franchilli, Drew Hunter Carleton, Elaine S Petersen, Eleanor B Sabo, Elizabeth P Rosenfeld, Ellen L Davis, Eric S Ong, Ethel L Sternberg, Eva F Dinardo, Gail E Cox, Georgina Adriana Deleon, Gerald J Rappoport, Gerard Joseph Nolan, Gretchen R Rodkey, James P Accurso, James H Fishman, Janine Mitchell Kearns, Jeremy T Spurr, June Ellen Nolan, Karla J Johnson, Keith I Larson, Larry Thomas Jennings, Lawrence W Gleckel, Lucille F Bekaert, Lucille G Wallach, Marilyn Sue Levey, Marilyn G Sarbin, Mark J Wycallis, Maureen H Baker, Michelle Amy Pearlman, Narayan Prasad, Nathaniel M Lipstadt, Nicole Bryl, Patricia S Fried, Paul David Frankel, Peter Lloyd Salgo, Philip Wolfman, Piper Mandy Rosenshein, Rana A Kaplan, Rebecca L Peterson, Richard L Rein, Rita B Cooke, Robert J Klein, Robert V Seminara, Shannon H Hopkins, Stephanie J Krigsman, Stephen F Milioti, Theodossis C Demetracopoulos, Valencia Rosario, Victor Najda and Warren E Davis
