| Verfasser | Häufigkeit |
| Howard, James Newton 1951- |
11 |
| Elswit, Robert 1950- |
6 |
| Newton, Robert 1905-1956 |
5 |
| Anthony, Robert Newton 1916-2006 |
4 |
| Driscoll, Bobby |
4 |
| Gilroy, Tony 1956- |
4 |
| Herzlinger, Regina E. |
4 |
| Leonard, Robert Sean |
4 |
| Newton, Robert |
4 |
| Stevenson, Robert Louis 1850-1894 |
4 |
| Banks, Leslie 1890-1952 |
3 |
| Clinton, Robert N. |
3 |
| Edelstein, Lisa 1966- |
3 |
| Epps, Omar |
3 |
| Gilroy, Dan 1959- |
3 |
| Haskin, Byron |
3 |
| Laurie, Hugh 1959- |
3 |
| Morrison, Jennifer |
3 |
| Newton, Nell J. |
3 |
| Parker, Clifton |
3 |