According to these notes in his About section, it seems both the fathers attached to this John Toliver are disputed. If neither set of parents can be proven, it would be best to disconnect them so the Geni pathways aren't incorrect.
I was tracing a line on a DNA match and had to stop here because I don't know which way to go or whether this John is a brick wall as far as who his parents were. I may or may not be related to him, but until his parental conflict is sorted / corrected, neither I nor anyone else can be certain.
Thanks in advance for any assistance.