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Mary Larson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Humboldt, Iowa
Our Model Tree links this Mary Larson across the 1900, 1910, 1920 and 1930 US Censuses in Humboldt, Iowa (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 2-person household.
Age 57
b. ~1863
Female
Head
Born: Denmark
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Humboldt, Iowa |
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Year of Immigration | 1881 |
| Naturalization Status | Alien |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Township / Ward | Humboldt Township |
| Est. Birth Year | ~1863 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Larson | Head | — | 57 | ~1863 |
| Morris Larson | Son | — | 25 | ~1895 |
Census Appearances
1900
Humboldt, Iowa
Head, age 39
Humboldt, Iowa · implied b. ~1861 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Birth Month | Aug |
| Birth Year | 1861 |
| Year of Immigration | 1892 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Washer woman |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1910
Humboldt, Iowa
Head, age 47
Humboldt, Iowa · implied b. ~1863 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Marie |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Children Born | 6 |
| Children Living | 5 |
| Year of Immigration | 1872 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Wash Woman |
| Industry | Private Family |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1920
Humboldt, Iowa
Head, age 57
Humboldt, Iowa · implied b. ~1863 — 2 household members
| Surname | Larson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Year of Immigration | 1881 |
| Naturalization Status | Alien |
| 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 |
| Birthplace (normalized) | denmark |
1930
Humboldt, Iowa
Head, age 68
Humboldt, Iowa · implied b. ~1862
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Larson |
| Given Name | Marie |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1892 |
| Age at First Marriage | 22 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | O |
| Home Value / Rent | 500 |
| 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 Larson across 4 US Census years (1900, 1910, 1920 and 1930) in Humboldt, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Larson
Head · 1920 · age 57 · b. ~1863 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Humboldt, Iowa
Open full size
1920 US Federal Census — Humboldt, Iowa
Page Contents
46 people indexed on this census page (ia:1920:14thcensusofpopu494unit:1019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 3 | John Johnson | 70 | Boarder | — | Germany |
| 4 | John Johnson | 26 | Boarder | — | Iowa |
| 7 | Charley L. Hurd | 40 | Head | Farmer | New York |
| 8 | Ethel Hurd | 41 | Wife | — | Illinois |
| 9 | Ivan Hurd | 18 | Son | — | Iowa |
| 10 | Maurice Hurd | 13 | Daughter | — | Iowa |
| 11 | Kenneth Hurd | 11 | Son | — | Iowa |
| 12 | Marjorie Hurd | 8 | Daughter | — | Iowa |
| 13 | Emil Walter | 39 | Head | Janitor | Luxemburg |
| 14 | Anna Walter | 30 | Wife | — | Bohemia |
| 15 | Ethel Walter | 8 | Daughter | — | Iowa |
| 16 | Blanche Walter | 6 | Daughter | — | Iowa |
| 17 | Lillian Fagan | 21 | Boarder | Teacher | N. Y. |
| 18 | Iona Snider | 26 | Boarder | Teacher | N. Y. |
| 19 | Mary Larson THIS PERSON | 57 | Head | — | Denmark |
| 20 | Morris Larson | 25 | Son | Laborer | Iowa |
| 21 | Angeline Wonderly | 62 | Head | — | Iowa |
| 22 | Fred Wonderly | 20 | Son | Laborer | Iowa |
| 23 | Carlotta Wonderly | 18 | Daughter | — | Iowa |
| 24 | Ole Thorald | 45 | Head | Section Boss | Norway |
| 25 | Hattie Thorald | 44 | Wife | — | Norway |
| 26 | Hulda Thorald | 15 | Daughter | — | Iowa |
| 27 | Olaf Johnson | 65 | Head | Laborer | Norway |
| 28 | Mary Johnson | 63 | Wife | — | Norway |
| 29 | Ludwick Johnson | 39 | Son | Carpenter | Norway |
| 30 | Sam Rummus | 74 | Head | — | Wisconsin |
| 31 | Rummus | None | — | — | — |
| 32 | Albert J. Craig | 36 | Son-in-law | Laborer | Iowa |
| 33 | Maggie Craig | 29 | Daughter | — | Iowa |
| 34 | Jesse Boyd | 40 | Head | Manager | Illinois |
| 35 | Frances Boyd | 37 | Wife | — | Missouri |
| 36 | Beulah Boyd | 6 | Daughter | — | Kansas |
| 37 | Jess Grimes | 40 | Son-in-law | Ditcher | Arkansas |
| 38 | Eva Grimes | 17 | Daughter | — | Kansas |
| 39 | Cora Schriber | 76 | Head | Drayman | Illinois |
| 40 | Annie Schriber | 32 | Wife | — | Iowa |
| 41 | George Schriber | 9 | Son | — | Illinois |
| 42 | Vera Schriber | 8 | Daughter | — | Illinois |
| 43 | Cecil Schriber | 5 | Son | — | Illinois |
| 44 | Clarence Schriber | 3 | Son | — | Iowa |
| 45 | Ole Handland | 33 | Head | Teamster | Iowa |
| 46 | Clara Handland | 27 | Wife | — | Iowa |
| 47 | John Lykke | 28 | Head | Laborer | Iowa |
| 48 | Violet G. Lykke | 23 | Wife | — | Iowa |
| 49 | James W. Lykke | 3 | Son | — | Iowa |
| 50 | George R. Lykke | 0 | Son | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)