Royal, Clinton and Christel with family
Clinton Campbell Royal and Christel Jones Family
Source: Thanks to Andy Rice for the photo submission and the information.
Clinton Royal married Christel Jones who was the daughter of Orzil Z Jones, Newtown, who was my (Andy Rice's) grandfather's Uncle.
The two sons would be Don and Gerald, Don was a Lieutenant Colonel in the Army and Gerald was a Colonel according to his FindAGrave profile. Daughter would be Nellie Royal Hardy.
See Clinton Campbell Royal's Obituary this site.
See Christel Jones Royal's Obituary this site.