David Irvin Undercoffer was born in Corsica, Jefferson County, PA, on April 25, 1853. He was married first to Margaret Anna
Green, a daughter of William Poorman and Isabella (Green) Vasbinder, early residents of the Rose Township area in Jefferson County. Margaret Anna was born March 11, 1850, in
Rose Township, and died there on November 14, 1886. She was buried in the Green Family Cemetery on her parent's farm. David Irvin and Margaret Anna were the parents of one
daughter, Isabella who was born April 23, 1874, and married Irvin S. Christ. After the death of Margaret Anna, Mr. Undercoffer then married her sister, Rosa Belle Green. She
was born May 5, 1859, and was the mother of one son, George A. Green. David Irvin Undercoffer died near Pittsburgh on October 16, 1909, and was also buried in the Green Family Cemetery.