JG
John Gallagher — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this John Gallagher across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Thomas & Mary — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Gallagher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange |
| Additional Details | |
| Occupation | Butcher |
| Industry | Retail Meat Market |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Butcher |
| Township / Ward | Orange City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Thomas Gallagher | Head | — | 55 | ~1885 |
| John Gallagher | Son | — | 23 | ~1917 |
| Mary Gallagher | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Essex, New …
Son, age 2
Essex, New Jersey · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Son, age 13
Essex, New Jersey · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallagher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Son, age 23
Essex-County, New Jersey · implied b. ~1917 — 3 household members
| Surname | Gallagher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | West Orange |
| Occupation | Butcher |
| Industry | Retail Meat Market |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | New Jersey |
| 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 Gallagher across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Gallagher (~0.92 confidence) and mother Mary Gallagher (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Gallagher
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mary Gallagher
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Gallagher
Son · 1940 · age 23 · b. ~1917 · New Jersey
★ 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 — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02339-00006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James F. Sullivan | 78 | Head | — | Pennsylvania |
| 2 | Catherine Sullivan | 76 | Wife | — | Ireland |
| 3 | Marguerite Sullivan | 43 | Daughter | Stenographer | New Jersey |
| 4 | Irene Sullivan | 40 | Daughter | Clerk | New Jersey |
| 5 | Grace Sullivan | 38 | Daughter | Stenographer | New Jersey |
| 6 | Edward Sullivan | 33 | Son | Foreman | New Jersey |
| 7 | Wallace Lyon | 65 | Head | House Painter | New Jersey |
| 8 | Clarissa Lyon | 75 | Wife | — | New Jersey |
| 9 | Arthur V. Thompson | 47 | Head | Sign Painter | New Jersey |
| 10 | Helen Thompson | 41 | Wife | Saleslady | New Jersey |
| 11 | Arthur W. Thompson | 21 | Son | Clerk | New Jersey |
| 12 | Leonard J. Thompson | 20 | Son | — | New Jersey |
| 13 | William Leonard | 39 | Brother in law | Salesman | New Jersey |
| 14 | George Werner | 69 | Head | Messenger | New Jersey |
| 15 | Frank Werner | 41 | Son | Caddie | New Jersey |
| 16 | Eleanor Werner | 16 | Daughter | — | New Jersey |
| 17 | William Werner | 66 | Cousin | Electrician | New Jersey |
| 18 | Grace Werner | 65 | Cousin | — | New Jersey |
| 19 | Anna Mcgarvey | 67 | Head | Housekeeper | New Jersey |
| 20 | Amanda Nolanda | 50 | Cousin | Saleslady | New Jersey |
| 21 | Elmina Robinson | 52 | Lodger | School Teacher | New York |
| 22 | Mary Marklin | 50 | Lodger | Asst. Book Registrar | New Jersey |
| 23 | Irene Conklin | 45 | Head | Teacher, School | New Jersey |
| 24 | John Di Sandro | 29 | Head | Trucker | Rhode Island |
| 25 | Carmela Di Sandro | 24 | Wife | — | Rhode Island |
| 26 | Barbara Di Sandro | 4 | Daughter | — | New Jersey |
| 27 | James Andruvila | 51 | Head | Fireman | New York |
| 28 | Susan Andruvila | 41 | Wife | — | Italy |
| 29 | Ella Andruvila | 21 | Daughter | Saleslady | New Jersey |
| 30 | James Andruvila | 20 | Son | Clerk | New Jersey |
| 31 | Maria Andruvila | 17 | Daughter | — | New Jersey |
| 32 | Andrew Kostopoulos | 55 | Head | Confectioner | Greece |
| 33 | Ethel Kostopoulos | 39 | Wife | Waitress | Greece |
| 34 | Thelma Kostopoulos | 19 | Daughter | Clerk | New Jersey |
| 35 | John Kostopoulos | 17 | Son | — | New Jersey |
| 36 | Mary Kostopoulos | 15 | Daughter | — | New Jersey |
| 37 | Mary Loudus | 70 | Mother In-law | — | Greece |
| 38 | Thomas Gallagher | 55 | Head | Utility Garage Man | England |
| 39 | Mary Gallagher | 52 | Wife | — | England |
| 40 | John Gallagher THIS PERSON | 23 | Son | Butcher | New Jersey |
Related Census Records
Pedigree Summary
John
Gen 1 · 2 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)