| Verfasser | Häufigkeit |
| Cooper, James Fenimore 1789-1851 |
31 |
| Cooper, Gary 1901-1961 |
22 |
| Stevens, George Cooper 1904-1975 |
13 |
| Fraser, Donald R. |
12 |
| Bloom, Floyd E. |
10 |
| Cooper, Jack R. |
10 |
| Roth, Robert H. |
10 |
| Cooper, Bob 1925-1993 |
9 |
| Cooper, Robin |
9 |
| Cooper, Rodney H. |
9 |
| Freund, Jürgen |
9 |
| Matthews, Richard |
9 |
| Cooper, Chris 1951- |
8 |
| Cooper, Gary |
8 |
| Cooper, Sammie Kerry |
8 |
| Rosolino, Frank 1926-1978 |
8 |
| Cooper, Gladys 1888-1971 |
7 |
| Ferrari, Leo C. |
7 |
| Armstrong, Robert |
6 |
| Cooper, Tom 1970- |
6 |