DC
David Cohen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Silver-Bow-County, Montana
Our Model Tree links this David Cohen across the 1920, 1930 and 1940 US Censuses in Silver-Bow-County, Montana (XGBoost, ~Confirmed), with identified parents Abe & Adolph — first a son (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Silver-Bow-County, Montana |
| Surname | Cohen |
| Given Name | David H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Butte |
| 1935 Residence (County) | Silver Bow |
| Additional Details | |
| Occupation | Timekeeper |
| Industry | Mines A. C. M. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1900 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Timekeeper |
| Township / Ward | Butte |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Nell Cohen | Spouse | — | 75 | ~1865 |
| Helen Vincent | Daughter | — | 49 | ~1891 |
| Kathryn Vincent | Daughter | — | 20 | ~1920 |
| Abe Cohen | Head | — | 70 | ~1870 |
| David Cohen | Son | — | 40 | ~1900 |
Census Appearances
1920
Silver Bow, …
Son, age 20
Silver Bow, Montana · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Nevada |
| Mother's Birthplace | Michigan |
| Occupation | Manager |
| Industry | Theatre |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Silver Bow, …
Son, age 30
Silver Bow, Montana · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cohen |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Nevada |
| Mother's Birthplace | Michigan |
| Occupation | Book Keeper |
| Industry | Oil Concentration |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Silver-Bow-County, Montana
Son, age 40
Silver-Bow-County, Montana · implied b. ~1900 — 5 household members
| Surname | Cohen |
| Given Name | David H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | Butte |
| 1935 Residence (County) | Silver Bow |
| Occupation | Timekeeper |
| Industry | Mines A. C. M. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1900 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Abe Cohen (~0.92 confidence) and father Adolph Cohen (~0.92 confidence) and mother Ellen Cohen (~0.92 confidence) and mother Nell Cohen (~0.92 confidence) and mother Nell Cohen (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abe Cohen
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Adolph Cohen
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Ellen Cohen
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Nell Cohen
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Nell Cohen
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Cohen
Son · 1940 · age 40 · b. ~1900 · Montana
★ You are viewing this record
Sibling
Helen Vincent
Sibling · 1940 · age 49
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Vincent
Sibling · 1940 · age 20
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 — Silver-Bow-County, Montana
Open full size
1940 US Federal Census — Silver-Bow-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02230-00546)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph P. Mcgrath | 24 | Head | Foreman Clerk | Montana |
| 2 | Lydia Mcgrath | 22 | Wife | — | Italy |
| 3 | Fred J. Williams | 53 | Head | Superintendent | Montana |
| 4 | Lola Maude O. Williams | 56 | Wife | — | Missouri |
| 5 | Fredrick S. (Jr.) Williams | 20 | Son | — | Montana |
| 6 | Mary E. Williams | 18 | Daughter | Clerk | Montana |
| 7 | Robert Mallory | 71 | Boarder | Blacksmith | New York |
| 8 | Emily S. Hillsome | 68 | Head | — | Montana |
| 9 | Emily S. Hillsome | 30 | Daughter | Teacher | Montana |
| 10 | Oliver C. Nickwald | 72 | Head | Auditor | Minnesota |
| 11 | Daisy L. Nickwald | 61 | Wife | Lodge House Keeper | Indiana |
| 12 | Harold Ferguson | 42 | Roomer | Miner | N. Dakota |
| 13 | Clifford R. Clifton | 22 | Roomer | Mining Engineer | Montana |
| 14 | Nathaniel Mannakee | 29 | Roomer | Sampling | West Virginia |
| 15 | Eugene C. Robertson | 24 | Roomer | Sampler | New Mexico |
| 16 | John Attwood | 23 | Roomer | Mining Engineer | Michigan |
| 17 | Donald P. Cosmes | 29 | Roomer | Engineer | Alaska |
| 18 | Karl H. Miller | 34 | Head | Miner | Montana |
| 19 | Romelle M. Miller | 26 | Wife | — | Utah |
| 20 | Darlene F. Miller | 8 | Daughter | — | Montana |
| 21 | Jeanne M. Miller | 6 | Daughter | — | Montana |
| 22 | Theodore C. Miller | 4 | Son | — | Montana |
| 23 | Glen F. Ashby | 27 | Head | Carpenter | Utah |
| 24 | Mattie L. Ashby | 22 | Wife | — | Arkansas |
| 25 | Glenda L. Ashby | 2 | Daughter | — | Montana |
| 26 | Gordon Ashby | 0 | Son | — | Montana |
| 27 | Heber Ashby | 42 | Uncle | Carpenter | Utah |
| 28 | Robert Ashby | 33 | Brother | Carpenter | Montana |
| 29 | Abe B. Cohen | 70 | Head | Justice Peace | Nevada |
| 30 | Nell Cohen | 75 | Wife | — | Michigan |
| 31 | Helen C. Vincent | 49 | Daughter | Clerk | Idaho |
| 32 | Kathryn E. Vincent | 20 | Daughter | Clerk | Montana |
| 33 | David H. Cohen THIS PERSON | 40 | Son | Timekeeper | Montana |
| 34 | Johanna E. Wilson | 74 | Head | — | Germany |
| 35 | Charles Hill Odgers | 46 | Head | Accountant | Montana |
| 36 | Genevieve Odgers | 44 | Wife | — | Montana |
| 37 | William J. Odgers | 50 | Brother | Clerk | Montana |
| 38 | Robert D. Hanes | 43 | Head | Engineer | Utah |
| 39 | Dorothy V. Hanes | 39 | Wife | — | Utah |
| 40 | L. Lone H. Tucker | 44 | Head | Oil Salesman | Montana |
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)