Delightful - that clears up that snafu re. Marie's father. Clearly, the family tree creator simply made a mistake.
Here is the birth record for Victoria Terese Larsen -
- family tree says she's born 03 Mar 1891 Fredrickstad, Norway d 1977 in Denmark.
- church book says she's born 16 March 1891 and baptized 19 April. See #32, Østfold fylke, Vestre Fredrikstad, Ministerialbok nr. 2 (1878-1894), Fødte og døpte 1891, side 245. http://www.arkivverket.no/URN:NBN:no-a1450-kb20060906010431....
Massachusetts Birth Records from Ancestry:
Sigrid Lenea Olsen
Birth: 15 Apr 1901 in Boston, Massachusetts, USA
Father: Severin Olsen
Mother: Lena Johnson
Boston, Suffolk, Massachusetts
Severin Olson 38 born about 1872 Norway, key maker, pianos
Lena Olson 38 b abt 1872 Sweden
Sigried Olson 9 b 1901 Massachusetts
Elizabeth Olson 7  b Mass [notation in brackets is suggested alt from Ancestry user]
Mabel Olson 5 b Mass
Halbert Olson 1 year 9 months old
Belmont, Middlesex, Massachusetts
Sederin Olson 48 b abt 1872 Norway, to USA 1894, cabinet maker
Lena Olson 48 b abt 1872 Norway, to USA 1894
Siegred Olson 18
Elizebeth Olson 17
Mabel Olson 15
Herbert Olson 11 b 1909 Massachusetts
Maybe Lena and Herbert in 1930, not quite dead on:
Herbert S Olsen 26 b abt 1904 New York
Lena Olsen 58 b abt 1872 Sweden, widowed
Augusta Magnuson 58 widowed cousin
seemingly the same Herbert and Lena, below - might be the wrong people.
New York, Kings, New York
Herbert Olson 36 b abt 1904 New York
Lina Olson 68 b abt 1872 Sweden, widowed mother