| Verfasser | Häufigkeit |
| MacGregor, Ewan |
18 |
| MacGregor, Ronald Stuart |
12 |
| MacGregor, Susanne 1942- |
11 |
| Burns, James MacGregor 1918-2014 |
7 |
| MacGregor, Sherilyn 1969- |
5 |
| Dunn, Susan 1945- |
4 |
| Freschi, Sandra |
4 |
| Hanks, Tom |
4 |
| Howard, Ron |
4 |
| MacGregor, Miriam |
4 |
| MacGregor, Nicola |
4 |
| MacGregor, Rob Roy |
4 |
| MacGregor, Scott |
4 |
| MacGregor, Steven P. |
4 |
| Skarsgård, Stellan |
4 |
| Totino, Salvatore |
4 |
| Bainbridge, Elizabeth 1930- |
3 |
| MacGregor, Alison |
3 |
| MacGregor, Anne |
3 |
| MacGregor, Neil 1946- |
3 |