ML
Mary Larsen — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Whatcom, Washington
Our Model Tree links this Mary Larsen across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Whatcom, Washington (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 4-person household.
Age 43
b. ~1867
Female
Head
Born: Denmark
Widowed
1910 Census Record Details
| Census Year | 1910 |
| Location | Whatcom, Washington |
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Children Born | 5 |
| Children Living | 3 |
| Year of Immigration | 1888 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Farmer |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Boundary Precinct |
| Est. Birth Year | ~1867 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Cora Larsen | Daughter | — | 16 | ~1894 |
| Mary Larsen | Head | — | 43 | ~1867 |
| Peter Larsen | Son | — | 17 | ~1893 |
| Mattie Larsen | Daughter | — | 15 | ~1895 |
Census Appearances
1900
Whatcom, Washington
Spouse, age 34
Whatcom, Washington · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Denmark |
| Birth Month | Nov |
| Birth Year | 1866 |
| Year of Immigration | 1888 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1910
Whatcom, Washington
Head, age 43
Whatcom, Washington · implied b. ~1867 — 4 household members
| Surname | Larsen |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Children Born | 5 |
| Children Living | 3 |
| Year of Immigration | 1888 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Whatcom, Washington
Head, age 54
Whatcom, Washington · implied b. ~1866 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Denmark |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | denmark |
1930
Whatcom, Washington
Other, age 63
Whatcom, Washington · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 25 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 200 |
| Radio Set | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
Head, age 75
Whatcom-County, Washington · implied b. ~1865 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| 1935 Residence (City) | Blaine City |
| 1935 Residence (County) | Whatcom |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Larsen across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Larsen
Head · 1910 · age 43 · b. ~1867 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Whatcom, Washington
Open full size
1910 US Federal Census — Whatcom, Washington
Page Contents
35 people indexed on this census page (ia:1910:13thcensus1910po1674unit:0292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bernhart Orman L. Bernhart | 7 | Son | — | Minnesota |
| 52 | - Ned Bernhart | 2 | Son | — | Wash |
| 53 | - Orfabelle Bernhart | 0 | Daughter | — | Wash |
| 54 | George S. Cook | 67 | Head | Mason | Canada |
| 55 | Betsy Cook | 56 | Wife | — | Wis |
| 56 | Edward Cook | 24 | Son | — | Minnesota |
| 57 | Daniel Cook | 17 | Son | Laborer | Minnesota |
| 58 | Andrew Levien | 25 | Head | Laborer | Wisconsin |
| 59 | Bertha Levien | 21 | Wife | — | Minnesota |
| 60 | George Levien | 1 | Son | — | Wash |
| 61 | Thorgel Asmundson | 42 | Head | Sawyer | Ice |
| 62 | Elena Asmundson | 46 | Wife | — | Ice |
| 63 | Ellen M. Asmundson | 11 | Daughter | — | Canada |
| 64 | Asmunder Asmundson | 10 | Son | — | Canada |
| 65 | Horgnjor Asmundson | 8 | Son | — | Canada |
| 66 | Thorlunn M. Asmundson | 7 | Son | — | Wash |
| 67 | Ingalfur V. C. Asmundson | 2 | Son | — | Wash |
| 68 | Olaf S. Poulson | 52 | Head | Farmer | Ice |
| 69 | Segridur Poulson | 39 | Wife | — | Ice |
| 70 | Sigurdur Proudfjord | 15 | Stepson | Blacksmith Apprentice | Canada |
| 71 | Gudrun Proudfjord | 12 | Stepdaughter | — | Canada |
| 72 | Stefan Proudfjord | 10 | Stepson | — | Canada |
| 73 | Linkvjon Proudfjord | 8 | Stepson | — | Canada |
| 74 | Stefania Y. Poulson | 0 | Daughter | — | Wash |
| 75 | Mary Larsen THIS PERSON | 43 | Head | Farmer | Denmark |
| 76 | Cora Larsen | 16 | Daughter | — | Wash |
| 77 | Mattie Larsen | 15 | Daughter | — | Wash |
| 78 | Peter Larsen | 17 | Son | — | Wash |
| 79 | Matthew Kemp | 43 | Head | Farmer | Canada |
| 80 | Florence Kemp | 15 | Daughter | — | Wash |
| 81 | Celia L. Kemp | 13 | Daughter | — | Wash |
| 82 | Helen Kemp | 9 | Daughter | — | Wash |
| 83 | Walter Moore | 69 | Head | Farmer | Illinois |
| 84 | Amanda V. Moore | 54 | Wife | — | Ohio |
| 85 | Maude M. Moore | 29 | Daughter | — | Nebraska |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)