| Verfasser | Häufigkeit |
| Johnson, Robert |
70 |
| Bonner, Robert Johnson 1868-1946 |
51 |
| Rolfe Johnson, Anthony 1940-2010 |
29 |
| Johnson, Robert A. |
27 |
| Holl, Robert 1947- |
20 |
| Johnson, Graham 1950- |
19 |
| Johnson, Robert 1500-1560 |
18 |
| Mozart, Wolfgang Amadeus 1756-1791 |
18 |
| Johnson, Virginia E. 1925-2013 |
17 |
| Kolodny, Robert C. |
17 |
| Masters, William H. 1915-2001 |
17 |
| Schumann, Robert 1810-1856 |
17 |
| Johnson, Robert E. |
16 |
| Johnson, Robert L. |
14 |
| Johnson, Samuel 1709-1784 |
13 |
| Hogg, Robert 1818-1897 |
12 |
| Johnson, George William 1802-1886 |
12 |
| Johnson, Robert Sherlaw 1932-2000 |
12 |
| Johnson, Robert W. |
12 |
| Johnson, Robert Willard |
12 |