"The first member of this branch of the Wissler family in America sailed with his wife from Germany to Philadelphia in 1720. On the voyage, together with other able bodied men on the vessel, he was impressed into the naval service by a man-of-war. His wife continued the journey to Philadelphia, where he joined her on the expiration of his term of service. She was employed by a farmer of Germantown and he also took service with a farmer in the same locality, where they passed the remainder of their lives. Andrew Wissler, their son, removed to Lancaster county, Pa., where he entered the employ of Jacob Groff, an extensive farmer in what is now Clay township. In 1767 he married the only daughter of his employer, and in this way became the owner of the old Groff homestead, which was taken up in 1724 by John Jacob Groff, father of Jacob. It was divided into four farms by Jacob Wissler, son of Andrew, but has ever since remained in the Wissler family. Andrew had two sons, John and Jacob; the former of whom died unmarried.
And from another area history: Lancaster Co, PA "where he entered the employ of John Groff, an extensive farmer in Clay Township on the west bank of Middle Creek. In 1767 he married Anna Magdalena, the only daughter of his employer, and in this way became the owner of the old Groff homestead.....With the additions it was divided into four farms by Jacob Wissler, son of Andrew....but has ever since remained in the Wissler family."
His will was proved 6/8/1804 and named wife Magdalena and as well as sons John and Jacob, who also served as Executors.