George Sheffler, for starters
He and his wife Catharina had their first child John (Johannes) in January of 1802 in Greensburg, Westmoreland County, Pennsylvania, about 40 miles SouthEast of what is now Pittsburgh.
George and his kids and many of their kids spoke only the language of the old country, German. He could not read or write in any language and thus in 1841 he still signed a document with an "X" accepting his pension for the Late Great War with Britain, now called the War of 1812.
George had at least six children, each with birth and baptism dates listed in the Lutheran records, and I think a seventh, a Catherine for whom I only see a record of Confirmation as a teenager. The Confirmation record sets her birthdate between the first two boys.
John (Johannes) - His line is mostly found in New Alexandria and Indiana County.
Catherine (Catharina) - No other records. Anyone?
Philip - Stayed at the homestead just south of Greensburg, owned the land as of 1834.
Frederick (Friederich) - Also stayed around Greensburg, and then his children scattered, to Butler County, Allegheny County, Blair County, and to Ohio then Indiana, and to Michigan then Oregon. This is my line.
Jacob - After his christening, just can't really find Jacob.
Elizabeth - Married John Heil. Extensive Heil descendancy researched by others.
Samuel - Stayed the closest, the longest. Many of his descendants are still around Greensburg. Samuel is buried in Hillview Cemetery just East of Greensburg.