When it comes to public and open profiles, no one actually "owns" them. So feel free to take action! Just identify the lowest profile ID (eg. Jones-1, rather than Jones-2), and then propose merges of the other profiles into that one.
If that's not fast enough for you (or if Profile Managers are not responding), you can always get a Supervisor to speed things along, since you're dealing with profiles for people over 200 years old. I see Lindsay Coleman is one of the managers on that profile; she's a Supervisor who's probably familiar with that family.