Hi Chris, I know it's a long time ince you posted this message so I hope you see the reply.
My Fretwells were also in the Hoylandswaine area.
I have a JULIA FRETWELL born 1781, father JOSHUA FRETWELL, born Hoylandswaine.
Julia went on to give birth to a son, THOMAS FRETWELL, born 1799 before she married an ISRAEL ARMITAGE.
THOMAS lived in Hoyulandswaine a while before moving to near by Thurlstone. He marreid a SARAH ROBINSON.
While we have foun several further back generations of Fretwells in the area, we are unable to know the exact line Julia is on due to the huge numbers of Joshas there are. It looks like every male of every generation named a son Joshua for about 3 or 4 generations. If anyone has tried looking into it they will know what I mean.
So far we have 2 candidates for Julias mother, but at differnet times one or the other seems the right one.
If you or anyone else for that matter has worked out which is her real mother I would be willing to hear.