John G. Diefenderfer, eldest son of Owen, was born Jan 6, 1849. He was educated in the Whitehall township schools, Allentown Academy and Lafayette College, from which he graduated in 1873. He then became a member of the faculty of Lafayette College, teaching modem Languages and mathematics, during which time he studied law and was admitted to the bar of Northampton county, in 1882, and to that of Lehigh County in 1886. He practiced law in Bethlehem from 1882 to 1689, when he removed to Allentown where he has since practiced and is now Referee in Bankruptcy for Lehigh County. He is a member of the Reformed Church. He married in 1884, Sarah E., daughter of Charles Augustus and Matilda (Jacobson) Luckenbach, of Bethlehem and has two daughters: Paulina M., married, Wdham S. Hall of Glenside; and Edna E., married Edmund Cox Wilson, of Fulton, N. V.