When Nicholas Plessinger was born on 6 August 1787, in Bedford, Pennsylvania, United States, his father, Conrad Blessing, was 42 and his mother, Caterena Margaret Summer or Sommer or Summers, was 43. He had at least 7 sons and 1 daughter with Catharine Garland. He lived in Belfast Township, Bedford, Pennsylvania, United States in 1840. He died on 17 December 1864, in Fulton, Pennsylvania, United States, at the age of 77, and was buried in Warfordsburg, Bethel Township, Fulton, Pennsylvania, United States.