JD
John Doherty — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Doherty across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents John & Catherine — first a son (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Doherty |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Own Account |
| Industry | Lawyer |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 2450 |
| Highest Grade | C4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Own Account |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Martha Gallagher | Other | — | 3 | ~1937 |
| Catherine Doherty | Spouse | — | 63 | ~1877 |
| John Doherty | Head | — | 68 | ~1872 |
| Mary Gallagher | Daughter | — | 25 | ~1915 |
| John Doherty | Son | — | 33 | ~1907 |
Census Appearances
1920
Hudson, New …
Son, age 13
Hudson, New Jersey · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hudson, New …
Son, age 23
Hudson, New Jersey · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Teacher |
| Industry | Law School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Son, age 33
Hudson-County, New Jersey · implied b. ~1907 — 5 household members
| Surname | Doherty |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Own Account |
| Industry | Lawyer |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 2450 |
| Highest Grade | C4 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 John Doherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Doherty (~0.92 confidence) and mother Catherine Doherty (~0.92 confidence) and father John Doherty (~0.92 confidence) and mother Catherine Doherty (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Doherty
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Catherine Doherty
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
John Doherty
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Catherine Doherty
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Doherty
Son · 1940 · age 33 · b. ~1907 · New Jersey
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Sibling
Mary Gallagher
Sibling · 1940 · age 25
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02405-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Soinie | 17 | Daughter | — | New Jersey |
| 2 | Joseph Summa | 42 | Head | Conductor | Canada English |
| 3 | Wilda Dene Summa | 36 | Wife | — | Canada English |
| 4 | John Markus | 64 | Head | Deck Builder | Finland |
| 5 | John Snell | 23 | Son in law | Salesman | New Jersey |
| 6 | Marie Snell | 22 | Daughter | — | New Jersey |
| 7 | Marie Karine Snell | 2 | Grand daughter | — | New Jersey |
| 8 | Irene Snell | 0 | Grand son | — | New Jersey |
| 9 | Ella Rapert | 64 | Head | Manager | New Jersey |
| 10 | Arthur Rapert | 31 | Son | Signal Engineer | New Jersey |
| 11 | Lois Dunlap | 37 | Daughter | Singer | New Jersey |
| 12 | Winifred Dunlap | 12 | Grand daughter | — | New Jersey |
| 13 | Robt. Dunlap | 10 | Grandson | — | New Jersey |
| 14 | John Doherty | 68 | Head | Transfer Clerk | Ireland |
| 15 | Catherine Doherty | 63 | Wife | — | Eire |
| 16 | John Jr. Doherty THIS PERSON | 33 | Son | Own Account | New Jersey |
| 17 | Mary Gallagher | 25 | Daughter | Stenographer | New Jersey |
| 18 | Martha Gallagher | 3 | Grand daughter | — | New Jersey |
| 19 | Esther J. Marshall | 61 | Head | Sample Maker | Pennsylvania |
| 20 | Isabella Marshall | 39 | Daughter | Secretary | Pennsylvania |
| 21 | Vikko Morkot | 32 | Boarder | Deck Builder | New Jersey |
| 22 | Manuel Vasquez | 34 | Head | Machinist | Costa Rica |
| 23 | Marjory Vasquez | 26 | Wife | — | Michigan |
| 24 | Carmen Vasquez | 5 | Daughter | — | Michigan |
| 25 | Emma Erskine | 44 | Head | — | Massachusetts |
| 26 | Agnes Erskine | 21 | Daughter | Teacher | New York |
| 27 | Marjorie Erskine | 18 | Daughter | Stenographer | New York |
| 28 | Goldie Cleon | 38 | Boarder | Teacher | New York |
| 29 | Harry Oliver | 67 | Head | — | New Jersey |
| 30 | Margaret Oliver | 56 | Wife | — | New Jersey |
| 31 | Margaret Oliver | 26 | Daughter | Packing | New Jersey |
| 32 | Catherine Oliver | 24 | Daughter | Packing | New Jersey |
| 33 | Lillian Oliver | 23 | Daughter | Packing | New Jersey |
| 34 | Ethel Oliver | 18 | Daughter | — | New Jersey |
| 35 | Joseph Oliver | 24 | Son | Laborer | New Jersey |
| 36 | Emilie Goldie Oliver | 1 | Grand daughter | — | New Jersey |
| 37 | Isaac Oliver | 22 | Son | Laborer | New Jersey |
| 38 | Lawrence Oliver | 19 | Son | New Worker | New Jersey |
| 39 | Chester Oliver | 17 | Son | New Worker | New Jersey |
| 40 | Donald Oliver | 11 | Son | — | New Jersey |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)