I'm sorry, Scott, that I know nothing about Longbottoms in Pennsylvania. My line came from Leeds England to Ontario Canada in early to mid 1800s. A number of them, including my great grandfather, came South to the US right after the Civil War when, as carpenters, they rebuilt bridges destroyed during the war. (or, so I'm told - I haven't any hard facts to back up the story but I like to tell it!). The one fact I'm sure of is that my dad's family settled in Minnesota (Redwood County).