From obituaries of Humboldt County, California 1928-1936 compiled by Marilyn Keach Milota:
Bundesen, Boi Lauritz - died 12 October 1928, Union Labor hospital, Eureka.Bur: Ferndale.Stomach tuberculosis.Came to U.S. 1888.Born 21 July 1867, Denmark.Widower of Cora Ellen (McMurtry) Bundesen.Left children Elveda, Christina & Henry Bundeson; brother of Mrs. John Christiansen, Mrs. Louis M. Smith, L.P. Bundeson & 2 brothers living in Denmark.(Humboldt Beacon, obit 19 October 1928)
From Humboldt County, California Abstracts of Death Records, 1926-1935, compiled by Marilyn Keach Milota:
Bundeson, Boi Lauritz - died 12 Oct 1928 at Union Labor hospital, Eureka.Cancer.Widower of Cora Ellen McMurtry Bundesen.Dairyman.Born 21 July 1876, Schleswig.Parents: Christina July & Hans Peter Bundesen, both born Schleswig.Informant: L.R. Bundesen.Bur: Ferndale.
So, as you can see in the obituary, his birth date was July 21, 1867 and his death date was October 12, 1928 and his wife's name is Cora Ellen (McMurtry) Bundesen.