MH
Margaret Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Margaret Hamilton across the 1920, 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Robert & Helen — first a spouse (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Female
Spouse
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Belleville Town |
| Est. Birth Year | ~1909 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Hamilton | Head | — | 35 | ~1905 |
| Margaret Hamilton | Spouse | — | 31 | ~1909 |
| John Hamilton | Son | — | 1 | ~1939 |
Census Appearances
1920
Essex, New …
Daughter, age 11
Essex, New Jersey · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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 |
Daughter, age 21
Essex, New Jersey · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | Stenographer |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Spouse, age 31
Essex-County, New Jersey · implied b. ~1909 — 3 household members
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| Highest Grade | No 8 |
| 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 Margaret Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Hamilton (~0.92 confidence) and mother Helen Hamilton (~0.92 confidence) and father Ruben Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Hamilton
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Helen Hamilton
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Ruben Hamilton
b. ~1881
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Hamilton
Spouse · 1940 · age 31 · b. ~1909 · 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-t0627-02328-00160)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maude Turner | 65 | Head | Asst Buyer | New Jersey |
| 2 | Edna Grace Park | 50 | Sister | Dental Asst | New Jersey |
| 3 | D. N. Hardman | 21 | Daughter | — | New Jersey |
| 4 | A. N. Hardman | 19 | Daughter | — | New Jersey |
| 5 | Elizabeth Earley | 65 | Head | — | Pennsylvania |
| 6 | Iva Blabney | 43 | House keeper | House Keeper | New Jersey |
| 7 | Elizabeth Roacher | 12 | Daughter | — | Massachusetts |
| 8 | Ethel E. Murdock | 33 | Daughter | — | New York |
| 9 | Albert Copestake | 37 | Head | Supervisor | England |
| 10 | Hazel E. Copestake | 38 | Wife | — | New Jersey |
| 11 | Doris I. Copestake | 15 | Daughter | — | New Jersey |
| 12 | Robert F. France | 37 | Head | Printer | New Jersey |
| 13 | Lillian France | 34 | Wife | — | Germany |
| 14 | Robert K. France | 13 | Son | — | New Jersey |
| 15 | William P. France | 12 | Son | — | New Jersey |
| 16 | Albert Pincus | 43 | Head | Salesman | New Jersey |
| 17 | Emma M. Pincus | 49 | Wife | — | New York |
| 18 | Madalyn White | 22 | Daughter | Tap Dancer | New Jersey |
| 19 | Ernest H. Dunbar | 67 | Head | Special Representative | New York |
| 20 | Mary A. Dunbar | 45 | Wife | — | New York |
| 21 | Charles Perry | 26 | Step son | Chemist | New York |
| 22 | Mary Chouinard | 49 | Sister | Dental Assistant | New Jersey |
| 23 | Russell Bennett | 39 | Head | Audit Clerk | New Jersey |
| 24 | Grace Bennett | 37 | Wife | Secretary | New Jersey |
| 25 | Christine Conforti | 20 | Daughter | Stenographer | New Jersey |
| 26 | Joseph Conforti | 15 | Son | — | New Jersey |
| 27 | Thomas Bianchi | 37 | Head | Truck Driver | New Jersey |
| 28 | Clara Bianchi | 37 | Wife | — | New Jersey |
| 29 | Marie Bianchi | 15 | Daughter | — | New Jersey |
| 30 | Margaret Bianchi | 13 | Daughter | — | New Jersey |
| 31 | Frank Bianchi | 10 | Son | — | New Jersey |
| 32 | Louis Messina | 48 | Head | Shoe Finisher | Italy |
| 33 | Anna Messina | 44 | Wife | — | Italy |
| 34 | Margaret Messina | 21 | Daughter | New Worker | New Jersey |
| 35 | Joseph Messina | 16 | Son | — | New Jersey |
| 36 | William H. Kenney | 38 | Head | Shoe Finisher | Pennsylvania |
| 37 | Helen M. Kenney | 38 | Wife | — | New Jersey |
| 38 | John J. Hamilton | 35 | Head | Production Manager | New Jersey |
| 39 | Margaret Hamilton THIS PERSON | 31 | Wife | — | New Jersey |
| 40 | John J. Hamilton | 1 | Son | — | New Jersey |
Related Census Records
Pedigree Summary
Margaret
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)