On 9 Jan 1821, George Schwenk Jr., son of George Schwenk and either his wife Catherine or Susanna, of Franconia Twp, and Abraham Schwenk of Upper Salford Twp, house carpenter, bought property from Phillip Gabel for 1100 pounds in Lower Milford Twp. This Abraham was George Jr.'s brother. George operated a saw mill and was a blacksmith.

From the 1850 census for Franconia Twp, Montgomery Co., PA: 5 5 George Schwenk age 72 Farmer $5500 Property Margaret age 75

If these ages are correct, then their birthdates as I show them are incorrect, as George should be 70 and Margaret should be 77 in 1850, but since ages in census records are frequently incorrect, I'm leaving the birthdates.

From "Book of Biographies of Leading Citizens of Bucks County, Pennsylvania", 1899:
(Charles F. Schwenk's) grandfather was George Schwenk of Franconia township, Montgomery County, who was one of a family of five children, namely: Abraham, a carpenter by vocation; Maria; Mary; Elizabeth; and George. The latter was born in Berks County, but after attaining manhood located upon a farm in Franconia township, where he operated a saw mill and plied his trade, that of a blacksmith. He was united in hymeneal bonds with Margaret Althouse, and they became the happy parents of three children, one son and two daughters: Charles A. (father of Charles F.); Catherine, who married Dr. George Fry, and had two sons and two daughters; and Sophia, whose union with Peter Hoffman resulted in the birth of one son and two daughters. Mr. Schwenk, whose birth occurred on the first day of April 1780, was called to his final rest, May 25, 1856, at the age of seventy-six years, one month, and twenty-four days; and his worthy wife, who was born on the twenty-eight day of November, 1773, was called Home, May 24, 1854, at the age of eighty years, five months and twenty-six days. Charles A. Schwenk was born in Franconia township, Montgomery County, July 21, 1813, and was reared upon his father's farm.