OK - I found your Percilla (Precilla) in my tree, her mother was a Mary Catherine Martin?
Well, great to have fina another cousin.
My 3rd gr. Grandfather was Joshua and his son and your William's brother Joshawa was my 2nd gr grandpa.
I've been researching for over 36 years, and Ancestry has been a great help in expanding my and my husband's family tree.
Happy 'sleuthing' :-)
Toronto, Ontario, Canada