Are you a descendant of Simeon & Eliza McKeown Pottorff? I am a descendant of Eliza's sister Leah Patterson McKeown. I have information on the McKeown line if you are interested.
My family records show that William Pottorff's siblings were: John who moved to Arkansas & prob. had 5 children Robert who married Hannah Townley & had 3 children James who married Lena Hawkins & had 4 children Newton Katharine
I do not know their birthdates, but this information is in a family letter I have from one of my McKeown ancestors.