Hetrick Family of Berks CO PA

I am looking for any information on the Hetrick family (and their spouses and their families) of Reading, Pennsylvania, including Heinrich Hetrick married to Elizabeth; John Hetrick (b. 1812) married to Hannah Bower; John Hetrick (b. 1843) married to Mary Ann Gorkes; Albert Martin Hetrick married to Jessica Dengler. Info. on Jessica Dengler would be especially helpful - I have nothing on her.