Never heard Rushes story.
Really didnt need to since me and my family are direct descendants of Edward Winslow.
In short, after the establishment of the settlement, and after losing about half of the original, they managed to survive and held what amounted to a feast. The indians brought what they could and they ate wild game and fishes for the meal. There were no pies, only puddings of mush etc.
If it were not for the indians, the whole of the exercise might have collapsed.
Trade had been established with the natives in that area some time before by the fishing concerns who fished the area
The bigger lesson here is that when Plymouth was a commune and folks were expected to work the fields for the benefit of the commune, they starved, but once the families were allowed to keep their own plot of land(private property) they had food in surplus as to trade.