JL
John Lawrence — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Bernardino-County, California
Our Model Tree links this John Lawrence across the 1930 and 1940 US Censuses in San-Bernardino-County, California (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 10-person household.
Age 40
b. ~1900
Male
Head
Born: West Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Bernardino-County, California |
| Surname | Lawrence |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Needles City |
| 1935 Residence (County) | San Bernardino |
| Additional Details | |
| Occupation | Clerk |
| Industry | A T S F R R |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2494 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Occupation | Clerk |
| Township / Ward | Needles City |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Juanita Lawrence | Daughter | — | 15 | ~1925 |
| Ella Lawrence | Daughter | — | 14 | ~1926 |
| Margaret Lawrence | Daughter | — | 17 | ~1923 |
| John Lawrence | Head | — | 40 | ~1900 |
| James Lawrence | Son | — | 16 | ~1924 |
| Charles Lawrence | Son | — | 7 | ~1933 |
| John Lawrence | Son | — | 9 | ~1931 |
| Billie Lawrence | Son | — | 4 | ~1936 |
| Bobbie Lawrence | Son | — | 4 | ~1936 |
| Bessie Lawrence | Spouse | — | 35 | ~1905 |
Census Appearances
1930
San Bernardino, …
Head, age 30
San Bernardino, California · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lawrence |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 22 |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Car Clerk |
| Industry | Railroad Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Veteran | No |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
San-Bernardino-County, California
Head, age 40
San-Bernardino-County, California · implied b. ~1900 — 10 household members
| Surname | Lawrence |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Needles City |
| 1935 Residence (County) | San Bernardino |
| Occupation | Clerk |
| Industry | A T S F R R |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2494 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 John Lawrence across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lawrence
Head · 1940 · age 40 · b. ~1900 · 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 — San-Bernardino-County, California
Open full size
1940 US Federal Census — San-Bernardino-County, California
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-00290-00038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Prucitique|Prucitiquo Flores | 57 | Head | Laborer | Mexico |
| 42 | Margareta Flores | 43 | Wife | — | Mexico |
| 43 | Gabriel Flores | 22 | Son | Clerk | Arizona |
| 44 | Juanita Flores | 21 | Daughter | — | Arizona |
| 45 | Theodore Flores | 20 | Son | — | Arizona |
| 46 | Maxine Flores | 15 | Daughter | — | California |
| 47 | Paul Flores | 10 | Son | — | California |
| 48 | Frances Flores | 3 | Daughter | — | California |
| 49 | Charles Brown | 33 | Head | Painter | Arizona |
| 50 | Mae Brown | 29 | Wife | — | California |
| 51 | Charlene Brown | 12 | Daughter | — | California |
| 52 | Frank Shaw | 26 | Head | Caller | Arkansas |
| 53 | Maggie Shaw | 24 | Wife | — | Arkansas |
| 54 | William Shaw | 63 | Father | — | Texas |
| 55 | Nora May Shaw | 20 | Sister | — | Kansas |
| 56 | Henry Maher | 42 | Head | Cashier | Nebraska |
| 57 | Mary Maher | 32 | Wife | — | Arizona |
| 58 | Russell Margaret Maher | 7 | Daughter | — | Arizona |
| 59 | Maher John Maher | 3 | Son | — | Arizona |
| 60 | John Lawrence THIS PERSON | 40 | Head | Clerk | West Virginia |
| 61 | Bessie Lawrence | 35 | Wife | — | Kentucky |
| 62 | Margaret Lawrence | 17 | Daughter | — | West Virginia |
| 63 | James Lawrence | 16 | Son | — | West Virginia |
| 64 | Juanita Lawrence | 15 | Daughter | — | West Virginia |
| 65 | Ella Lawrence | 14 | Daughter | — | West Virginia |
| 66 | John Jr Lawrence | 9 | Son | — | California |
| 67 | Charles Lawrence | 7 | Son | — | California |
| 68 | Bobbie Lawrence | 4 | Son | — | California |
| 69 | Billie Lawrence | 4 | Son | — | 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)