The couple had one child, Carl Berner, who became a notable politician.
He was born in 1841, but Marie Lovise died in childbed.
Oluf Steen Julius Berner married again, to Christiane Sofie Rømer (1812–1850), in 1846 in Kragerø.
Berner was elected to the Norwegian Parliament in 1854, representing the constituency of Christiansand.