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James Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this James Cook across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Edgar & Edgar — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Cook |
| Given Name | James E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Camera Man |
| Industry | Motion Picture |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2280 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Camera Man |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1914 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Cook | Head | — | 26 | ~1914 |
| Dennis Cook | Son | — | 2 | ~1938 |
| James Cook | Son | — | 5 | ~1935 |
| Margaret Cook | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Los Angeles, …
Son, age 6
Los Angeles, California · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Wales |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 16
Los Angeles, California · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Wales |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Head, age 26
Los-Angeles-County, California · implied b. ~1914 — 4 household members
| Surname | Cook |
| Given Name | James E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Camera Man |
| Industry | Motion Picture |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2280 |
| Highest Grade | Hs 4 |
| 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 James Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edgar Cook (~0.92 confidence) and father Edgar Cook (~0.92 confidence) and mother Mary Cook (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edgar Cook
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Edgar Cook
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary Cook
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Cook
Head · 1940 · age 26 · b. ~1914 · 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-t0627-00404-00383)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence Mcdermott | 48 | Head | Time Keeper | Pennsylvania |
| 2 | Pearl Mcdermott | 49 | Wife | — | Pennsylvania |
| 3 | Ned Hart | 30 | Lodger | Radio Technician | Montana |
| 4 | Dell Bolton | 65 | Head | — | Iowa |
| 5 | Fern Bolton | 31 | Daughter | — | Iowa |
| 6 | Mable Bolton | 59 | Sister-in-law | — | Iowa |
| 7 | Edred C Paty | 35 | Head | Loftsman | Colorado |
| 8 | Gladys Paty | 40 | Wife | — | Illinois |
| 9 | Richard D Tregillus | 23 | Step-son | Truck Driver | California |
| 10 | Merrill L Abbott | 57 | Head | Sheet Metal | Iowa |
| 11 | Rebecca Abbott | 57 | Wife | — | Iowa |
| 12 | Morris A Abbott | 33 | Son | Auto Mechanic | Oklahoma |
| 13 | Maurice J Pullman | 44 | Head | Doctor | Poland |
| 14 | Rose Pullman | 37 | Wife | — | Germany |
| 15 | Sonia Pullman | 13 | Daughter | — | California |
| 16 | Morton Pullman | 8 | Son | — | California |
| 17 | Bernard Levin | 27 | Head | Salesman | California |
| 18 | Mollie Levin | 25 | Wife | — | Oregon |
| 19 | Ellen Levin | 2 | Daughter | — | California |
| 20 | Jeanne Cramer | 23 | Maid | Maid | Michigan |
| 21 | James E Cook THIS PERSON | 26 | Head | Camera Man | California |
| 22 | Margaret Cook | 22 | Wife | — | Missouri |
| 23 | James E Jr Cook | 5 | Son | — | California |
| 24 | Dennis A Cook | 2 | Son | — | California |
| 25 | G. Ellsworth Mute | 33 | Head | Actor | Washington |
| 26 | Florence Mute | 27 | Wife | — | California |
| 27 | Clark Mute | 6 | Son | — | California |
| 28 | Robert Mute | 2 | Son | — | California |
| 29 | Blaine Mute | 2 | Son | — | California |
| 30 | Edward Frank | 30 | Head | — | California |
| 31 | Harriett Frank | 25 | Wife | — | California |
| 32 | Daniel L Frank | 2 | Son | — | California |
| 33 | Richard P Frank | 2 | Son | — | California |
| 34 | Dorothy M Bell | 18 | Maid | Maid | Missouri |
| 35 | Charles L Bearden | 56 | Head | — | D.C. |
| 36 | Anna W Bearden | 42 | Wife | — | Illinois |
| 37 | Ludwig Stark | 73 | Father-in-law | — | Sweden |
| 38 | Augustus H Shoults | 73 | Head | Manager | Michigan |
| 39 | Muriel Shoults | 8 | Wife | — | New York |
| 40 | Elmer H Shoults | 45 | Son | Estimator | South Dakota |
Pedigree Summary
James
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)