Bernt Martinsen Sandermoen

Seeking death date and burial date for Bernt Martinsen, born Sandermoen, Grue, Hedmark on 12 December 1859, Emigrated from Sandermoen to Kristiania 20 March 1882. Found on 1910 census: Hedemarkgaten 3, Kristiania. Last found in Valerenga, Kristiania until 1930, then the death records are private for internet. Bernt died after 1930. Thanks so much for any help! Janice