G D · Gordon D · Gordon R. Denboer
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Atlas of Historical County Boundaries: Kentucky | 978-0-13-309543-2 | 1995 | John H. Long |
| Minnesota Atlas of Historical County Boundaries | 978-0-13-366410-2 | 2000 | " |
| New Hampshire, Vermont: Atlas of Historical County Boundaries | 978-0-13-051954-2 | 1993 | George E., Jr. Goodridge · John H. Long |
| North Carolina Atlas of Historical County Boundaries | 978-0-13-366469-0 | 1998 | John H. Long |
| Pennsylvania: Atlas of Historical County Boundaries | 978-0-13-315532-7 | 1996 | John Hamilton Long |
| Wisconsin: Atlas of Historical County Boundaries | 978-0-13-366352-5 | 1997 | John H. Long |