When Peder Nielsen was born in 1795, in Munke Bjergby, Sorø, Denmark, his father, Niels Pedersen, was 29 and his mother, Bodil Pedersdatter, was 26. He married Sidse Jensdatter on 21 May 1826, in Pedersborg, Sorø, Denmark. They were the parents of at least 1 daughter. He died on 7 January 1854, in Pedersborg, Alsted, Sorø, Denmark, at the age of 59, and was buried in Pedersborg, Alsted, Sorø, Denmark.