When Lars Jorgensen was born on 18 November 1830, in Klemensker, Bornholm, Denmark, his father, Jorgen Jorgensen, was 39 and his mother, Ane Pedersen, was 29. He married Barbara Kirstine Pihl on 22 March 1857, in Klemensker, Bornholm, Denmark. They were the parents of at least 5 sons and 6 daughters. He lived in Klemensker, Nørre, Bornholm, Denmark in 1850 and Hasle, Århus, Denmark for about 10 years. He was buried in Hasle, Nørre, Bornholm, Denmark.