My great Uncle, Frederik Vilhelm Throndsen migrated to the USA in 1875 and resided in Berkeley, Alameda until his death on 9 May 1940. He was born on 20 November 1858 in Oslo, Norway. Frederick William Thronsen and Fred Thrunsen - these names appear in newspaper articles and the 1910 and 1920 US Census records. 1920 Census states residence: Oadland Township, City of Berkeley, Precinct 72, Alameda, California. In America he married Anna N Nielsen and they had 5 children, Harry, Alexander, Lulu M, George and Annie. Frederik was known under the names:
Harry was born 1885 and died in 1940 In Alameda. Also appears in records as Harry Thrunson. He married Emma, who came from Germany, sometime after 1906 in California.
Alexander, also appears in records as Allie Frederick Thronsen, Alec Thrunsen and Alexander Thrunson, was born on 14 Jan 1887 in California and died on 6 Aug 1954, Alameda, California.
Lulu M was born in September 1888 but I haven't been able to find any other records about her.
George was born on 9 Jan 1892 and died on 16 January 1957 in Alameda, California. United Ststes Census of 1910 & 1920 states residence: Oakland Township, City Of Berkeley, Precinct 72, Alameda, California.
Annie Throndsen was born on 1 August 1894 and died on 22 March 1896 - I found a newspaper article about her death.
It seems the Throndsens were fairly well known in Berkeley, Alameda in the late 1800s.
I have not been able to find any other records about these people nor about any descendents. Can anyone help me?