DC
David Cohen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this David Cohen across the 1910, 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Harry & Isaac — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Advertising Solicitor |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 2500 |
| Highest Grade | H-4 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Advertising Solicitor |
| Township / Ward | Lansdowne |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Mildred Cohen | Spouse | — | 33 | ~1907 |
| Barbara Cohen | Daughter | — | 1 | ~1939 |
| David Cohen | Head | — | 37 | ~1903 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 7
Philadelphia, Pennsylvania · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 16
Philadelphia, Pennsylvania · implied b. ~1904 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Yiddish |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 26
Philadelphia, Pennsylvania · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | COHEN |
| Given Name | DAVID |
| Relationship to Head | SON |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | PENNSYLVANIA |
| Father's Birthplace | RUSSIA |
| Mother's Birthplace | RUSSIA |
| Occupation | PHARMACIST |
| Industry | DRUG STORE |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | NO |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Head, age 37
Delaware-County, Pennsylvania · implied b. ~1903 — 3 household members
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Advertising Solicitor |
| Industry | Newspaper |
| Class of Worker | PW |
| Hours Worked | 43 |
| Income (1939) | 2500 |
| Highest Grade | H-4 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Cohen (~0.92 confidence) and father Isaac Cohen (~0.92 confidence) and father Jacob Cohen (~0.92 confidence) and mother Dora Cohen (~0.92 confidence) and mother Lena Cohen (~0.92 confidence) and mother Sarah Cohen (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Cohen
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Isaac Cohen
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Jacob Cohen
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Dora Cohen
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Lena Cohen
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Sarah Cohen
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Cohen
Head · 1940 · age 37 · b. ~1903 · Pennsylvania
★ 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03493-00048)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Ettie Hudson | 30 | Wife | Assistant Secretary | Pennsylvania |
| 2 | Dorothy Griffith | 33 | Head | School Teacher | Pennsylvania |
| 3 | George C. Peterly | 30 | Head | Store Manager | Pennsylvania |
| 4 | Agnes Peterly | 25 | Wife | Stenographer | Pennsylvania |
| 5 | Edwin John | 61 | Head | Advertising Man | Kansas |
| 6 | Jane John | 63 | Wife | Hairdresser | Rhode Island |
| 7 | Margaret Heller | 60 | Head | Clerk | Delaware |
| 8 | Sylvia Shaw | 49 | Head | Bookkeeper | Maryland |
| 9 | Barbara Ann Shaw | 14 | Daughter | — | Maryland |
| 10 | James S. Dupner | 43 | Head | Electrician | Pennsylvania |
| 11 | Ida E. Dupner | 40 | Wife | — | Pennsylvania |
| 12 | John J. Haggerty | 37 | Head | Underwriter | Pennsylvania |
| 13 | Clara E. Haggerty | 33 | Wife | — | Pennsylvania |
| 14 | Allan D. Haggerty | 6 | Son | — | Pennsylvania |
| 15 | Peter O. Haggerty | 1 | Son | — | Pennsylvania |
| 16 | David Gottschall | 30 | Head | Freight Solicitor | Pennsylvania |
| 17 | Elizabeth Gottschall | 32 | Wife | — | Pennsylvania |
| 18 | David Gottschall | 3 | Son | — | Pennsylvania |
| 19 | Peter Roth | 32 | Head | Office Clerk | Pennsylvania |
| 20 | Beatrice Roth | 32 | Wife | — | Pennsylvania |
| 21 | Theophilus Fry | 66 | Father-in-law | Electrical Mech. | Pennsylvania |
| 22 | William Jordan | 49 | Head | Superintendent | New York |
| 23 | Winifred Jordan | 49 | Wife | — | New York |
| 24 | William Jr. Jordan | 24 | Son | Meter Reader | New York |
| 25 | George Jordan | 22 | Son | File Clerk | New York |
| 26 | James Jordan | 17 | Son | — | Pennsylvania |
| 27 | Edward Jordan | 15 | Son | — | Pennsylvania |
| 28 | Richard Jordan | 9 | Son | — | Pennsylvania |
| 29 | Carrie Amidon | 87 | Mother-in-law | — | Canada Eng |
| 30 | Allen F. Crawford | 31 | Head | Mechanic | West Virginia |
| 31 | Helen R. Crawford | 28 | Wife | — | Pennsylvania |
| 32 | Allen Robt. Crawford | 2 | Son | — | Pennsylvania |
| 33 | Paul W. Crawford | 64 | Brother | Mechanic | Maryland |
| 34 | Robert Wallace | 54 | Head | Superintendent | Pennsylvania |
| 35 | Arthur E. Selby | 50 | Head | Sales Manager | England |
| 36 | Lorraine Selby | 33 | Wife | — | Ohio |
| 37 | David Cohen THIS PERSON | 37 | Head | Advertising Solicitor | Pennsylvania |
| 38 | Mildred Cohen | 33 | Wife | — | Georgia |
| 39 | Barbara Cohen | 1 | Daughter | — | Pennsylvania |
Related Census Records
Pedigree Summary
David
Gen 1 · 6 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)