When Lars Jakobsen Frogner was born on 5 November 1831, in Vang, Hamar, Hedmark, Norway, his father, Jakob Larsen Frogner, was 32 and his mother, Anne Marte Sjurdsdatter, was 26. He married Olea Hansdatter on 4 July 1879, in Vang, Hamar, Hedmark, Norway. They were the parents of at least 3 sons and 3 daughters. He died on 8 May 1896, in his hometown, at the age of 64, and was buried in Hedemarkens Amt, Norway.