LB
Lydia Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Yuba-County, California
Our Model Tree links this Lydia Brown across the 1930 and 1940 US Censuses in Yuba-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Female
Spouse
Born: Russia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Yuba-County, California |
| Surname | Brown |
| Given Name | Lydia D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Marysville Judicial Township |
| 1935 Residence (County) | Yuba |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | Housekeeper |
| Township / Ward | Marysville Judicial Township |
| Est. Birth Year | ~1897 |
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 1940 census.
| Name | Relation to head | Relative to Lydia | Age | Birth yr |
|---|---|---|---|---|
| Herbert Brown | Son | — | 9 | ~1931 |
| John Brown | Head | — | 44 | ~1896 |
| Lydia Brown | Spouse | — | 43 | ~1897 |
| Alvin Brown | Son | — | 19 | ~1921 |
Census Appearances
1930
Yuba, California
Other, age 32
Yuba, California · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lydia |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Russia |
| Naturalization Status | Alien |
| Year of Immigration | 1907 |
| Age at First Marriage | 20 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read/Write | Yes |
| Mother Tongue | Russian |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Yuba-County, California
Spouse, age 43
Yuba-County, California · implied b. ~1897 — 4 household members
| Surname | Brown |
| Given Name | Lydia D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Russia |
| 1935 Residence (City) | Marysville Judicial Township |
| 1935 Residence (County) | Yuba |
| Naturalization Status | Alien |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 12 |
| Income (1939) | 240 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 Lydia Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lydia Brown
Spouse · 1940 · age 43 · b. ~1897 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Yuba-County, California
Open full size
1940 US Federal Census — Yuba-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00367-00307)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald Joe Cobb | 11 | Stepson | — | Arizona |
| 2 | James Smith | 27 | Head | Laborer | Colorado |
| 3 | Helen Smith | 21 | Wife | — | Colorado |
| 4 | Helenlee Smith | 3 | Daughter | — | California |
| 5 | Ganchon Smith | 1 | Daughter | — | California |
| 6 | Charles Landow | 58 | Head | — | Michigan |
| 7 | Minnie Landow | 49 | Wife | — | Colorado |
| 8 | Martha Landow | 27 | Daughter | — | California |
| 9 | Hedwin Landow | 22 | Son | Clerk | California |
| 10 | Merle Landow | 18 | Daughter | — | California |
| 11 | Mildred Landow | 16 | Daughter | — | California |
| 12 | Clyde Landow | 13 | Son | — | California |
| 13 | Jimmie Landow | 11 | Son | — | California |
| 14 | Gillian Landow | 7 | Daughter | — | California |
| 15 | Charles Volk | 52 | Head | Barber | Illinois |
| 16 | Mildred R. Volk | 48 | Wife | — | Michigan |
| 17 | Virgil Kirkpatrick | 51 | Head | Miner | Illinois |
| 18 | Catherine Kirkpatrick | 50 | Wife | — | California |
| 19 | Placido A. Villegas | 82 | Head | — | Mexico |
| 20 | John R. Brown | 44 | Head | Farmer | Russia |
| 21 | Lydia D. Brown THIS PERSON | 43 | Wife | Housekeeper | Russia |
| 22 | Alvin Brown | 19 | Son | — | Canada-English |
| 23 | Herbert Brown | 9 | Son | — | California |
| 24 | Ray Harper | 26 | Head | Laborer | Illinois |
| 25 | Bertha Harper | 23 | Wife | — | Indiana |
| 26 | Jacky Harper | 5 | Son | — | California |
| 27 | Harvey Harper | 2 | Son | — | California |
| 28 | Bertha Filby | 15 | Mother-in-law | — | Utah |
| 29 | David Palmer | 46 | Head | Farmer | Nebraska |
| 30 | Matilda Palmer | 38 | Wife | — | Kansas |
| 31 | Roy Palmer | 15 | Son | — | Oklahoma |
| 32 | Vern Palmer | 13 | Daughter | — | Oklahoma |
| 33 | J. T. Hakes | 52 | Head | Rancher | Texas |
| 34 | Anne Lee Hakes | 40 | Wife | Housekeeper | Texas |
| 35 | Darrell W. Hakes | 18 | Son | — | Texas |
| 36 | James Jr. Hakes | 17 | Son | — | Texas |
| 37 | Anne G. Hakes | 13 | Daughter | — | Texas |
| 38 | Ambrose Galligan | 49 | Head | Carpenter | California |
| 39 | Leola Galligan | 53 | Wife | — | Kansas |
| 40 | Emil F. Boasen | 52 | Head | Laundry | 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)