| Verfasser | Häufigkeit |
| Harley, John 1928- |
13 |
| Harley, John P. |
12 |
| Harley, John Brian |
9 |
| Warner, John Harley 1953- |
8 |
| Harley, John Eugene |
7 |
| Klein, Donald A. |
6 |
| Prescott, Lansing M. |
6 |
| Harley, John H. |
4 |
| Miller, Stephen A. |
4 |
| Harley, J. L. 1911-1990 |
3 |
| Homburg, Christian 1962- |
3 |
| Krohmer, Harley 1970- |
3 |
| Workman, John P. |
3 |
| Harley, John L. |
2 |
| Waid, John S. 1927-2012 |
2 |
| Wiberley, Stephen E. |
2 |
| Baines, Paul |
1 |
| Bassett, Lewis G. |
1 |
| Bennett, Douglas Harley 1918-1997 |
1 |
| Brierley, John 1927- |
1 |