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Lena Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mendocino-County, California
Our Model Tree links this Lena Brown across the 1920, 1930 and 1940 US Censuses in Mendocino-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 3-person household.
Age 52
b. ~1888
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mendocino-County, California |
| Surname | Brown |
| Given Name | Lena O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Fort Bragg City |
| 1935 Residence (County) | Mendocino |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Fort Bragg City |
| Est. Birth Year | ~1888 |
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 Lena | Age | Birth yr |
|---|---|---|---|---|
| Lena Brown | Spouse | — | 52 | ~1888 |
| Harvey Brown | Son | — | 22 | ~1918 |
| Charles Brown | Head | — | 53 | ~1887 |
Census Appearances
1920
Mendocino, California
Spouse, age 32
Mendocino, California · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lena |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1897 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Year of Naturalization | 1904 |
| Birthplace (normalized) | finland |
1930
Mendocino, California
Spouse, age 42
Mendocino, California · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lena |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 19 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Mendocino-County, California
Spouse, age 52
Mendocino-County, California · implied b. ~1888 — 3 household members
| Surname | Brown |
| Given Name | Lena O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Fort Bragg City |
| 1935 Residence (County) | Mendocino |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Lena Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Lena Brown
Spouse · 1940 · age 52 · b. ~1888 · California
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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 — Mendocino-County, California
Open full size
1940 US Federal Census — Mendocino-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00263-00353)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jimmy Farley | 5 | Son | — | California |
| 2 | Gerald Farley | 3 | Son | — | California |
| 3 | Donald Farley | 2 | Son | — | California |
| 4 | Manuel Pacheco | 48 | Head | Trans-For Table | Massachusetts |
| 5 | Marie Pacheco | 43 | Wife | — | Azores |
| 6 | Manuel Pacheco | 15 | Son | — | Massachusetts |
| 7 | Irene Pacheco | 13 | Daughter | — | Massachusetts |
| 8 | Joseph Pacheco | 12 | Son | — | Massachusetts |
| 9 | Charles Pacheco | 8 | Son | — | California |
| 10 | John Pacheco | 7 | Son | — | California |
| 11 | Mary Lima | 68 | Mother-in-law | — | Azores |
| 12 | John Lima | 28 | Brother-in-law | Trans-For Table | Azores |
| 13 | Manuel Milla | 22 | Cousin | Transfer Table | Massachusetts |
| 14 | Charles A. Brown | 53 | Head | Conductor | California |
| 15 | Lena O. Brown THIS PERSON | 52 | Wife | — | Finland |
| 16 | Harvey Brown | 22 | Son | Mechanic | California |
| 17 | Lawrence Gorancon | 29 | Head | Service Station Operator | California |
| 18 | Helen O. Gorancon | 25 | Wife | — | California |
| 19 | Annette Gorancon | 3 | Step-daughter | — | California |
| 20 | Frank Souza | 53 | Head | Section Gang | Azores |
| 21 | Maria Souza | 62 | Wife | — | Azores |
| 22 | Evangeline Souza | 27 | Daughter | — | Massachusetts |
| 23 | Joseph Souza | 22 | Son | Section Gang | Massachusetts |
| 24 | Antone Carvalho | 26 | Head | Piler Lumber | Massachusetts |
| 25 | Beatrice Carvalho | 19 | Wife | — | Massachusetts |
| 26 | Bertil Thornquist | 26 | Head | Saw Filer | Texas |
| 27 | Frances O. Thornquist | 28 | Wife | — | California |
| 28 | Jo Anne Thornquist | 3 | Daughter | — | California |
| 29 | Larry Thornquist | 1 | Son | — | California |
| 30 | Jonas Dahl | 67 | Head | — | Finland |
| 31 | Mary O. Dahl | 59 | Wife | — | Finland |
| 32 | Arvid Dahl | 37 | Son | — | California |
| 33 | Irene Dahl | 34 | Daughter | — | California |
| 34 | Elmer Dahl | 31 | Son | Construction | California |
| 35 | Virgil Dahl | 20 | Son | — | California |
| 36 | Ray Eastman | 14 | Grandson | — | California |
| 37 | Jerry Eastman | 13 | Grandson | — | California |
| 38 | Frank Peterson | 39 | Head | — | California |
| 39 | Rita O. Peterson | 28 | Wife | — | California |
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)