LJ
Leslie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Leslie Johnson across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 10-person household.
Age 40
b. ~1900
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Johnson |
| Given Name | Leslie W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | LOS ANGELES CITY |
| 1935 Residence (County) | LOS ANGELES |
| Additional Details | |
| Occupation | Fireman |
| Industry | Airplane Factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 850 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Fireman |
| Township / Ward | Los Angeles 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 Leslie | Age | Birth yr |
|---|---|---|---|---|
| Gordon Johnson | Son | — | 16 | ~1924 |
| Juanita Snider | Other | — | 48 | ~1892 |
| Leslie Johnson | Head | — | 40 | ~1900 |
| Irving Johnson | Son | — | 12 | ~1928 |
| Mary Johnson | Daughter | — | 14 | ~1926 |
| Mabel Johnson | Spouse | — | 35 | ~1905 |
| Bruce Snider | Son | — | 11 | ~1929 |
| Charlotte Johnson | Daughter | — | 17 | ~1923 |
| Phillip Johnson | Son | — | 1 | ~1939 |
| May Ingmire | Other | — | 68 | ~1872 |
Census Appearances
1930
Los Angeles, …
Head, age 30
Los Angeles, California · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Leslie W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 20 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Farmer |
| Industry | Fruit & Chicken Ranch |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Head, age 40
Los-Angeles-County, California · implied b. ~1900 — 10 household members
| Surname | Johnson |
| Given Name | Leslie W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | LOS ANGELES CITY |
| 1935 Residence (County) | LOS ANGELES |
| Occupation | Fireman |
| Industry | Airplane Factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 850 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Leslie Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leslie Johnson
Head · 1940 · age 40 · b. ~1900 · 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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00374-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray L Johnson | 41 | Head | Rural Mail Carrier | California |
| 2 | Sarah K Johnson | 41 | Wife | — | South Dakota |
| 3 | Ray L Jr Johnson | 18 | Son | — | California |
| 4 | Viola K Johnson | 16 | Daughter | — | California |
| 5 | Thelma J Johnson | 14 | Daughter | — | California |
| 6 | Charles W Johnson | 11 | Son | — | California |
| 7 | Leslie W Johnson THIS PERSON | 40 | Head | Fireman | California |
| 8 | Mabel Johnson | 35 | Wife | — | Arizona |
| 9 | Charlotte Johnson | 17 | Daughter | — | California |
| 10 | Gordon Johnson | 16 | Son | — | California |
| 11 | Mary Dora Johnson | 14 | Daughter | — | California |
| 12 | Irving Johnson | 12 | Son | — | California |
| 13 | Phillip Johnson | 1 | Son | — | California |
| 14 | May Ingmire | 68 | Grandmother | — | California |
| 15 | Juanita Snider | 48 | Mother | Winder | California |
| 16 | Bruce Snider | 11 | Son | — | California |
| 17 | Victor Southers | 39 | Head | Oil Well Worker | Colorado |
| 18 | Pauline Southers | 27 | Wife | — | California |
| 19 | Dona M. Southers | 11 | Daughter | — | California |
| 20 | Gordon Southers | 7 | Son | — | California |
| 21 | Paul Dean Southers | 3 | Son | — | California |
| 22 | Samuel M. Anderson | 66 | Head | Real Estate Insurance Broker | Scotland |
| 23 | Agatha H Anderson | 58 | Wife | — | Kansas |
| 24 | Lelia I Anderson | 20 | Daughter | — | Turkey |
| 25 | Clark D Miner | 42 | Head | Oil Worker | California |
| 26 | Lillian C Miner | 40 | Wife | — | Texas |
| 27 | Max C. Knapp | 33 | Head | Retail Grocery | Switzerland |
| 28 | Josephine C Knapp | 31 | Wife | — | Missouri |
| 29 | Joellen G Knapp | 5 | Daughter | — | California |
| 30 | Nels Paulsen | 75 | Head | Packer | Denmark |
| 31 | Agnes Paulsen | 48 | Wife | Clerical | So Dakota |
| 32 | David L Ambrose | 26 | Lodger | Teacher | California |
| 33 | John N. Love | 36 | Head | Mechanic | California |
| 34 | Marjorie D Love | 33 | Wife | — | California |
| 35 | H. M. P. Donnelly | 63 | Head | Painter | Indiana |
| 36 | Donnelly | 52 | Wife | — | Pennsylvania |
| 37 | Otto Smith | 64 | Head | Carpenter | Iowa |
| 38 | Laura Smith | 54 | Wife | — | Missouri |
| 39 | Hazel A Foster | 42 | Step-daughter | Saleslady | Calif. |
| 40 | Jesse Y Foster | 4 | Step-grandson | — | Calif. |
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)