| famname | Location | URL | Name |
| Krause | Germany to NJ | hometown.aol.com/hm8485/myhomepage/heritage.html | Laura Simonson |
| Krol | Austria/Pol | genweb.net/gedcom/Ameliablue/Ameliablue.html | Leslie Mendez |
| Krueger | PRU > WI? > MN | | Deb Koplen |
| Krumwiede | Germany, Illinois, Minnesota, Nebraska | homepages.rootsweb.com/~loretta/index.htm | Loretta Krumwiede Barlow |
| Krutsinger | Germany>PA>VA, KY, IN, OH, IL, MO | www.familytreemaker.com/users/a/l/e/Melissa-T-Alexander/ | Melissa Thompson Alexander |
| Kuehl | Germany, Canada, US | www.rootsweb.com/~wiwood/MAK-roots/g-master.htm | Marcia Ann Kuehl |
| Kuhn | Worldwide Surname Research Newsletter | ladyecloud.hypermart.net/Kuhn.htm | Beverly Przybylski |
| Kvalsund | Norway>USA>WA | www.familytreemaker.com/users/g/a/r/Leona--Garcia-WA/ | Leona Kollman Garcia |
| Kyker | USA | | Brian Hulleberg |