This comes from THE GENEALOGICAL RECORD OF THE SCHWENKFELDER FAMILIES - Seekers of Religious Liberty who fled from Silesia to Saxony and thence to Pennsylvania in the years 1731 to 1737, Volume II, edited by Samuel Kriebel Brecht, A.M., printed for the Board of Publications of the Schwenkfelder Church, Pennsburg, PA, Rand McNally & Co, 1923, page 1502:
"On July 14, 1774, David Wagener acquired by patent 8 acres 76 perches known as 'Waggoner's Mill Seat' lying on both sides of Bushkill Creek, Easton, PA. By additional purchases he acquired 134 acres; all lying within the present borough limits of Easton, PA. [Plate A I, II, III, IV, V.] In his will signed Feb. 18, 1796, David bequeathed his son, David, property that he valued at 4,000 pounds. 'All those of my mills, and tract of about 50 acres of land - situate on Bushkill Creek within the limits of borough of Easton.' At the wish of Mrs. William Ricker, a stone was placed over the grave of David and Susanna Wagener in the Easton Cemetery. The land on which they are buried was purchased by David Wagener from the estate of William Penn. The tombstone was erected Oct 13, 1881, and contains this inscription:
'Beneath this marble are deposited the remains of DAVID WAGENER ESQ., late of the borough of Easton, one of the associate Judges of Northampton County, born in Silesia, Germany, May 24, A.D. 1736, and departed this life May 9, 1896, aged 59 years, 11 months, and 15 days. Also beneath this stone lies the body of SUSANNA, wife of David Wagener Esq., born Feb. 2 A.D. 1734; departed this life Apr. 22, 1819, aged 85 yrs. 2 mos. and 20 days.' [Eyerman Easton Cemetery Records.] For much data concerning David Wagener and his descendants the Editor is greatly indebted to "Genealogical Studies etc.", by John Eyerman, 1902.]