Johann Jacob Hausserann Heiserman

Johann Jacob Haussermann (Heisetrman) came to America in 1854 with his wife Margaret,and two children,Johann Jacob and Johanna. They settled in Columbia,Lancaster,PA.

Johann Jacob dropped the Johann and went by Jacob Heiserman. I have traced his family back to Germany to the beginning of 1700. I have church record copies from their for marriage,b ieth,and death,

I have quite a lot of information, except, I cannnot find his wifes death in Columbia, or Lancaster County Court Records. I think she died before Jacob who died in 1890.

Is there anybody out there who is doing their genealogy on this family?