Hello Merilyn! I see that his family includes some living children, so it is possible that one of them might even be a duplicate profile of your current Guest account. I would recommend upgrading your Guest Account to a Member Account. It's free, and doesn't take very long to get set up. This would make it easier to send a private message to the current profile manager, discuss with them whether the private profiles might represent other members of your family, and request and complete a merge if one is needed,
Good Luck and Welcome to WikiTree!!