Augustus Gabrielson (by the 1910 census his is listed as 'August') and wife 'Elma'? (spelled Alma in 1910) listed in Cambria Co. Pennsylvania in 1900 US census. They list that they've been married 7 years and have three sons. They also live right next door to a large Sandberg family where the head of household and his wife are old enough to be Mrs. Gabrielson's parents.
Those members of the Sandberg family born in Norway list that they immigrated about 1880 and Mr. Gabrielson immigrated about 1890.
Censuses show at least two other households of Gabrielsons born in Norway and living in Pennsylvania 1900 and 1910. Perhaps households headed by 'Gust's brothers and therefore relatives?
Parents of the two other Pennsylvania Gabrielson's as shown in the 1865 Norwegian census - http://www.rhd.uit.no/folketellinger/ftliste_e.aspx?ft=1865&...