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Mary Larson — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Grundy, Illinois
Our Model Tree links this Mary Larson across the 1900 and 1910 US Censuses in Grundy, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1850), then head of a 12-person household.
Age 50
b. ~1850
Female
Spouse
Born: Norway
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Grundy, Illinois |
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Norway |
| Birth Month | Apr |
| Birth Year | 1850 |
| Year of Immigration | 1854 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Nettle Creek Township |
| Est. Birth Year | ~1850 |
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.
12 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Annie Larson | Daughter | — | 21 | ~1879 |
| Martha Larson | Daughter | — | 13 | ~1887 |
| Lena Larson | Daughter | — | 17 | ~1883 |
| Louisa Larson | Daughter | — | 14 | ~1886 |
| Mary Larson | Daughter | — | 19 | ~1881 |
| Sarah Larson | Daughter | — | 7 | ~1893 |
| Tom Larson | Head | — | 53 | ~1847 |
| John Larson | Son | — | 10 | ~1890 |
| Arthur Larson | Son | — | 5 | ~1895 |
| Hans Larson | Son | — | 24 | ~1876 |
| Henry Larson | Son | — | 10 | ~1890 |
| Mary Larson | Spouse | — | 50 | ~1850 |
Census Appearances
1900
Grundy, Illinois
Spouse, age 50
Grundy, Illinois · implied b. ~1850 — 12 household members
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Norway |
| Birth Month | Apr |
| Birth Year | 1850 |
| Year of Immigration | 1854 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1910
Grundy, Illinois
Spouse, age 60
Grundy, Illinois · implied b. ~1850 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| Years Married | 27 |
| Children Born | 1 |
| Children Living | 1 |
| Year of Immigration | 1900 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Larson across 2 US Census years (1900 and 1910) in Grundy, Illinois, using XGBoost record linkage.
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This person
Anchor record
Mary Larson
Spouse · 1900 · age 50 · b. ~1850 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Grundy, Illinois
Open full size
1900 US Federal Census — Grundy, Illinois
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu304unit:0082)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lars Peterson | 62 | Head | Farmer | Norway |
| 2 | Julia Peterson | 53 | Wife | — | Norway |
| 3 | Elizabeth Peterson | 22 | Daughter | — | Illinois |
| 4 | Thomas Peterson | 20 | Son | At School | Illinois |
| 5 | Peter Peterson | 19 | Son | At School | Illinois |
| 6 | Carrie Peterson | 17 | Daughter | At School | Illinois |
| 7 | Betsy Peterson | 14 | Daughter | At School | Illinois |
| 8 | Julia Peterson | 12 | Daughter | At School | Illinois |
| 9 | Susan Peterson | 8 | Daughter | At School | Illinois |
| 10 | I. Benj Ericson | 19 | Servant | Farm Laborer | Illinois |
| 11 | Jonas Onnell | 42 | Head | Farmer | Norway |
| 12 | Martha Onnell | 33 | Wife | — | Illinois |
| 13 | Emma Onnell | 10 | Daughter | At School | Illinois |
| 14 | Sarah A. Onnell | 9 | Daughter | At School | Illinois |
| 15 | Lester Onnell | 3 | Son | — | Illinois |
| 16 | Bernhard Onnell | 0 | Son | — | Illinois |
| 17 | Chris Johnson | 25 | Servant | Farm Laborer | Illinois |
| 18 | John Anderson | 57 | Head | Farmer | Norway |
| 19 | Annie Anderson | 17 | Daughter | — | Illinois |
| 20 | Sivert Anderson | 13 | Son | At School | Illinois |
| 21 | Tom Larson | 53 | Head | Farmer | Norway |
| 22 | Mary Larson THIS PERSON | 50 | Wife | — | Norway |
| 23 | Hans Larson | 23 | Son | Teaching School | Illinois |
| 24 | Annie Larson | 20 | Daughter | — | Illinois |
| 25 | Mary Larson | 18 | Daughter | — | Illinois |
| 26 | Lena Larson | 16 | Daughter | — | Illinois |
| 27 | Louisa Larson | 14 | Daughter | At School | Illinois |
| 28 | Martha Larson | 12 | Daughter | At School | Illinois |
| 29 | John Larson | 10 | Son | At School | Illinois |
| 30 | Henry Larson | 10 | Son | At School | Illinois |
| 31 | Sarah Larson | 6 | Daughter | At School | Illinois |
| 32 | Arthur H. Larson | 4 | Son | — | Illinois |
| 33 | Hugh Angus | 28 | Head | Farmer | Illinois |
| 34 | Maggie Angus | 26 | Wife | — | Illinois |
| 35 | Herbert Angus | 4 | Son | — | Illinois |
| 36 | Sadie Angus | 3 | Daughter | — | Illinois |
| 37 | Fern Angus | 1 | Son | — | Illinois |
| 38 | John Johnson | 33 | Head | Farm Laborer | Illinois |
| 39 | Martha Johnson | 27 | Wife | — | Norway |
| 40 | Arthur J. Johnson | 2 | Son | — | Illinois |
| 41 | Baby Johnson | 0 | Son | — | Illinois |
| 42 | Albert Peterson | 23 | Boarder | Farmer | Illinois |
| 43 | Rasmus Olson | 66 | Head | Farmer | Norway |
| 44 | Julia Olson | 57 | Wife | — | Norway |
| 45 | Oley Olson | 27 | Adopted Son | Farm Laborer | Illinois |
| 46 | John Jeffery | 43 | Head | Farmer | Scotland |
| 47 | Annie Jeffery | 46 | Wife | — | Scotland |
| 48 | Albert Anderson | 19 | Boarder | Farm Laborer | Illinois |
| 49 | Nels Nelson | 63 | Head | Farmer | Norway |
| 50 | Susan Nelson | 68 | Wife | — | Norway |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)