Hard to say for sure, obviously, but I think the hen being by herself is much less common than a gobbler being by itself this time of year. I suspect there were other turkeys in the vicinity of that lone hen, but who knows for sure.
The lone gobbler, on the other hand, is not entirely an anomaly. Here is a theory that has been presented by "the experts",...and one I happen to think has merit:
Male turkeys have a tendency to make bonds with other male turkeys based on age. A group of jakes that get together as youngsters may stay together their entire lives (the exception perhaps being during the spring breeding season when they may disperse for a while to find hens). As members of those bands perish for whatever reason, the group becomes smaller and smaller until there may well end up being only a single, old "hermit" gobbler left that spends his final years all by himself.
I suspect that may have been the explanation for the lone gobbler, but that is purely speculation. Perhaps the same applies for a group of older hens, but I have no clue.