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Louis Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Louis Larson across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1864), then head of a 3-person household.
Age 76
b. ~1864
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Port Chester |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Cranford Township |
| Est. Birth Year | ~1864 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Lillian Larson | Daughter | — | 48 | ~1892 |
| Selma Larson | Spouse | — | 73 | ~1867 |
| Louis Larson | Head | — | 76 | ~1864 |
Census Appearances
1920
Hudson, New …
Head, age 57
Hudson, New Jersey · implied b. ~1863 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Capt |
| Industry | Lighter |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth Country | Sweden |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | sweden |
1930
Union, New …
Head, age 66
Union, New Jersey · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Bandger |
| Industry | Tide Water |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 9,000 |
| Radio Set | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Union-County, New …
Head, age 76
Union-County, New Jersey · implied b. ~1864 — 3 household members
| Surname | Larson |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Port Chester |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Louis Larson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Louis Larson
Head · 1940 · age 76 · b. ~1864 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-02385-00348)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Madeline Burr | 32 | Sister-in-law | Stenographer | Pennsylvania |
| 42 | James Mcmahon | 58 | Head | Grocer | New Jersey |
| 43 | Helen Mcmahon | 54 | Wife | — | Ireland |
| 44 | Joseph Lambert | 38 | Son-in-law | Accountant | New York |
| 45 | Anna Lambert | 35 | Daughter | — | New Jersey |
| 46 | James Lambert | 9 | Grandson | — | New Jersey |
| 47 | John Lambert | 1 | Grandson | — | New Jersey |
| 48 | Nicholas Longo | 73 | Head | — | Italy |
| 49 | Lucia Longo | 68 | Wife | — | Italy |
| 50 | Samuel Longo | 38 | Son | Insurance Agent | Italy |
| 51 | Michel Longo | 31 | Son | Insurance Clerk | Italy |
| 53 | Arthur Jackson | 45 | Head | Accountant | New York |
| 54 | Jennie Jackson | 43 | Wife | — | New York |
| 55 | William Jackson | 21 | Son | Research Chemist | New York |
| 56 | Emily Jackson | 14 | Daughter | — | New York |
| 57 | Louis Larson THIS PERSON | 76 | Head | — | Sweden |
| 58 | Selma Larson | 73 | Wife | — | Sweden |
| 59 | Lillian Larson | 48 | Daughter | — | New York |
| 60 | Andrew Macpherson | 41 | Head | Fireman | Scotland |
| 61 | Olga Macpherson | 42 | Wife | — | New Jersey |
| 62 | Dorothy Macpherson | 13 | Daughter | — | New Jersey |
| 63 | Robert Macpherson | 11 | Son | — | New Jersey |
| 64 | Bertha Matthews | 66 | Mother-in-law | — | New Jersey |
| 65 | Steven Kolanko | 50 | Head | Laborer | Poland |
| 66 | Mary Kolanko | 47 | Wife | — | Poland |
| 67 | Frank Kolanko | 27 | Son | Factory Worker | New Jersey |
| 68 | Helen Kolanko | 19 | Daughter | — | New Jersey |
| 69 | Stella Kolanko | 15 | Daughter | Shade Sewer | New Jersey |
| 70 | Arthur Heckler | 41 | Head | Letter Carrier | New York |
| 71 | Rose Heckler | 40 | Wife | — | Ireland |
| 72 | Patricia Heckler | 2 | Daughter | — | New Jersey |
| 73 | Gisella Heckler | 65 | Mother | — | Austria |
| 74 | Rocco Russo | 23 | Lodger | Clerk-Postal | New York |
| 75 | Harold Kierling | 43 | Head | Civil Engineer | Wisconsin |
| 76 | Helen Kierling | 41 | Wife | — | Illinois |
| 77 | Richard Kierling | 15 | Son | — | Illinois |
| 79 | Ethel Simpson | 50 | Head | — | New York |
| 80 | N. Grant Simpson | 25 | Son | Bank Teller | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)