Family Organizations: O
Family Associations, Family Organizations, and Family Societies exist throughout the world, but finding them is problematic. This collection of links to the websites, Facebook pages, and if needed a mailing address, will help you find the organizations that can be helpful in your family history research. Feel free to add an organization or update any that are already listed. 
 
| Surname | Links & Description | 
|---|---|
| Ontiveros | Facebook: The Ontiveros Family Early California History Facebook group for only the ONTIVEROS FAMILY involvement of the early settlement of the State of California. | 
| Osmond | Website: Osmond Family Organization Family Organization shares and collaborates on family history, research, DNA, reunions. | 
| Ouzts | Website: The Ouzts Family Association Family Association for the lineage of Johann Dietrich Utz who left Germany and came to Edgefield County, South Carolina. Reunions. | 
| Overmohle-Koch | Facebook: [https://www.facebook.com/groups/109235249243815/?ref=br_rs Overmohle-Koch Family Genealogy Facebook group focused on Leo Overmohle and Rosemary Koch (my grandparents), who were married January 15, 1953. and their ancestors. Designed for collaboration. |