DC
David Cohen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this David Cohen across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents David & David — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Melanie Cohen | Daughter | — | 28 | ~1912 |
| Anita Cohen | Daughter | — | 23 | ~1917 |
| Delfine Cohen | Spouse | — | 57 | ~1883 |
| David Cohen | Son | — | 21 | ~1919 |
| David Cohen | Head | — | 52 | ~1888 |
Census Appearances
1920
Los Angeles, …
Son, age
Los Angeles, California · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David R. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 21
Los-Angeles-County, California · implied b. ~1919 — 5 household members
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Income (1939) | 0 |
| Highest Grade | C 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 David Cohen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David Cohen (~0.92 confidence) and father David Cohen (~0.92 confidence) and father Isidore Cohen (~0.92 confidence) and mother Delfine Cohen (~0.92 confidence) and mother Delphine Cohen (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David Cohen
b. ~1884
Source father
● Household
· direct · ~0.92
Father
David Cohen
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Isidore Cohen
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Delfine Cohen
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Delphine Cohen
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Cohen
Son · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Melanie Cohen
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anita Cohen
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
39 people indexed on this census page (nara:1940:m-t0627-00406-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Abraham Wolfberg | 50 | Head | Merchant | Pennsylvania |
| 2 | Minnie Wolfberg | 43 | Wife | — | Pennsylvania |
| 3 | Stanley Wolfberg | 22 | Son | Part Time Salesman | Pennsylvania |
| 4 | Selma Wolfberg | 14 | Daughter | — | Pennsylvania |
| 5 | Shirley Wolfberg | 10 | Daughter | — | California |
| 6 | May J Blipson | 64 | Head | — | Wisconsin |
| 7 | Herman Metz | 70 | Lodger | Writer | Russia |
| 8 | John B Donaldson | 49 | Lodger | Grocery Man | Minnesota |
| 9 | T. Carlisle | 39 | Head | Operator | Washington |
| 10 | Mildred Carlisle | 31 | Wife | — | Utah |
| 11 | Gloria Carlisle | 11 | Daughter | — | California |
| 12 | Robert Guy Werley | 50 | Head | Salesman | Texas |
| 13 | Florence Werley | 44 | Wife | — | Texas |
| 15 | Bernard Werner | 57 | Head | Vet. | Russia |
| 16 | Anna Werner | 51 | Wife | — | Russia |
| 17 | Melva Werner | 26 | Daughter | Stenographer | Wisconsin |
| 18 | Spencer Werner | 22 | Son | — | Kansas |
| 19 | Percy Werner | 21 | Son | — | California |
| 20 | David Cohen | 52 | Head | Traveling Salesman | Minnesota |
| 21 | Delfine Cohen | 57 | Wife | — | Missouri |
| 22 | Melanie Cohen | 28 | Daughter | — | Nebraska |
| 23 | Anita Cohen | 23 | Daughter | — | California |
| 24 | David Cohen THIS PERSON | 21 | Son | — | California |
| 25 | Josephine Manning | 60 | Head | — | Indiana |
| 26 | May West | 35 | Lodger | — | California |
| 27 | Stephanie Hicks | 22 | Lodger | Salesperson | California |
| 28 | Charles A Tirany | 50 | Lodger | Salesman | Missouri |
| 29 | Robert Benson | 22 | Lodger | Priv Secy | California |
| 30 | Robert Talbot | 32 | Lodger | Salesman | California |
| 31 | Max Silberman | 41 | Head | Auto Parking | Tennessee |
| 32 | Betty Silberman | 36 | Wife | — | New Jersey |
| 33 | Charlotte Silberman | 17 | Daughter | — | California |
| 34 | Stanley Silberman | 14 | Son | — | California |
| 35 | Bobby Silberman | 12 | Son | — | California |
| 36 | John Roberts | 27 | Head | Assistant Secretary | Scotland |
| 37 | Cleo May Roberts | 25 | Wife | — | Florida |
| 38 | John Roberts | 3 | Son | — | California |
| 39 | Leo Roberts | 1 | Son | — | California |
| 40 | Samuel Gardner | 61 | Head | — | Lithuania |
Pedigree Summary
David + 2 siblings
Gen 1 · 5 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)