I am interested in a Jacob Heft born July 6, 1803 in Bedminster, Bucks County, PA...

I have traced my own Heft family to Joseph Mann Heft, born 1838 in Haycock Township, Bucks County, PA. According to census records, there was a Joseph Heft born abt. 1838 in Haycock Township to a Jacob (abt. 1803) and Anna (abt. 1810) Heft. (Year: 1850; Census Place: Haycock, Bucks, Pennsylvania; Roll: M432_759; Page: 206; Image: 413.) I am wondering whether anyone has information about Jacob's children. I have been stuck at Joseph for quite some time now. Being from Northampton County, PA myself, even possible cemetery locations for this family might be useful. Any information you might be able to provide would be greatly appreciated.