JD
John Douglas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this John Douglas across the 1920, 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed), with identified parents George & Sadie — first a son (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | Douglas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Steam Rwy |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 900 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Clerk |
| Township / Ward | Jersey City |
| Est. Birth Year | ~1911 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Douglas | Head | — | 53 | ~1887 |
| John Douglas | Son | — | 29 | ~1911 |
| Joseph Douglas | Son | — | 22 | ~1918 |
Census Appearances
1920
Hudson, New …
Son, age 10
Hudson, New Jersey · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| 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 19
Hudson, New Jersey · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Messenger |
| Industry | Railroad |
| 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 29
Hudson-County, New Jersey · implied b. ~1911 — 3 household members
| Surname | Douglas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | Clerk |
| Industry | Steam Rwy |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 900 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| 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 Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Douglas (~0.92 confidence) and mother Sadie Douglas (~0.92 confidence) and mother Mary Douglas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Douglas
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Sadie Douglas
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Mary Douglas
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Douglas
Son · 1940 · age 29 · b. ~1911 · New Jersey
★ You are viewing this record
Sibling
Joseph Douglas
Sibling · 1940 · age 22
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-t0627-02405-00569)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Steven Larkin | 15 | Son | — | New Jersey |
| 42 | James Larkin | 14 | Son | — | New Jersey |
| 43 | Dorothy Larkin | 11 | Daughter | — | New Jersey |
| 44 | Florence Larkin | 9 | Daughter | — | New Jersey |
| 45 | Thomas Larkin | 6 | Son | — | New Jersey |
| 46 | Mary A. Larkin | 1 | Daughter | — | New Jersey |
| 47 | Edwin Longstaff | 31 | Head | Erector | New Jersey |
| 48 | Ann Longstaff | 31 | Wife | — | New Jersey |
| 49 | Audrey Longstaff | 1 | Daughter | — | New Jersey |
| 50 | Mary Douglas | 53 | Head | — | New Jersey |
| 51 | John Douglas THIS PERSON | 29 | Son | Clerk | New Jersey |
| 52 | Joseph Douglas | 22 | Son | Tool Grinder | New Jersey |
| 53 | Alexander Machuta | 26 | Head | Printer | New Jersey |
| 54 | Alice Machuta | 22 | Wife | — | New Jersey |
| 55 | Jean Machuta | 6 | Daughter | — | New Jersey |
| 56 | Arthur Cuberly | 53 | Head | Maintenance Man | New Jersey |
| 57 | Emma Cuberly | 52 | Wife | — | New Jersey |
| 58 | Elinor Cuberly | 21 | Daughter | Clerical | New Jersey |
| 59 | Arthur Cuberly | 17 | Son | — | New Jersey |
| 60 | Robert Studor | 28 | Son | Helper | New Jersey |
| 61 | Elizabeth Cuberly | 77 | Mother | — | New Jersey |
| 62 | Harry Williams | 53 | Head | — | New Jersey |
| 63 | Thomas Williams | 26 | Son | Helper | New Jersey |
| 64 | Aloysius Williams | 25 | Son | Checker | New Jersey |
| 65 | Lawrence Williams | 23 | Son | Helper | New Jersey |
| 66 | Gertrude Williams | 20 | Daughter | Stenograph | New Jersey |
| 67 | Paul Williams | 17 | Son | — | New Jersey |
| 68 | Mabel Burke | 42 | Head | Charwoman | New Jersey |
| 69 | James Burke | 21 | Son | Trucker | New Jersey |
| 70 | Susan Jones | 75 | Mother | — | North Ireland |
| 71 | Percy Weber | 37 | Head | Machinist | New York |
| 72 | Ann Weber | 29 | Wife | — | New Jersey |
| 73 | John Weber | 14 | Son | — | New Jersey |
| 74 | Annette Weber | 1 | Daughter | — | New Jersey |
| 75 | Irene Helander | 58 | Mother | — | Nassau Bah |
| 76 | Frederick Gleason | 59 | Head | Housework | Rhode Island |
| 77 | Henrietta Gleason | 56 | Wife | Towerwoman | New Jersey |
| 78 | Veronica Gleason | 23 | Daughter | — | New Jersey |
| 79 | Ernest Baumgardt | 51 | Head | Stenog & Typist | Germany |
| 80 | Whitter Baumgardt | 51 | Head | Whitter | Germany |
Pedigree Summary
John + 1 sibling
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)