This is not my line, but I stumbled upon a dear entry amongst the PA Archives land patents and hope someone connects.
Patentees: Donnell, Margaret et al, Sarah et al, Mary et al Elizabeth et al Catharine et al John et al. 263+ acres, name of tract: Sisterhood. Date of warrant 27 March 1786.
Warentee: Margaret Donnell et al.
You can find the info here: http://www.phmc.state.pa.us/bah/dam/rg/di/r17PatentIndexes/P...

You may also want to search for more here:
http://www.phmc.state.pa.us/bah/dam/rg/di/r17PatentIndexes/r...

Happy hunting,
Laura in NC