JH
John Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this John Hamilton across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Helen — first a head (b.~1901), then head of a 10-person household.
Age 39
b. ~1901
Male
Head
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Mechanic |
| Township / Ward | Worcester |
| Est. Birth Year | ~1901 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nancy Hamilton | Daughter | — | ~1940 | |
| Barbara Hamilton | Daughter | — | 1 | ~1939 |
| Mary Hamilton | Daughter | — | 17 | ~1923 |
| Dorothy Hamilton | Daughter | — | 4 | ~1936 |
| John Hamilton | Head | — | 39 | ~1901 |
| Richard Hamilton | Son | — | 7 | ~1933 |
| Bernard Hamilton | Son | — | 15 | ~1925 |
| John Hamilton | Son | — | 13 | ~1927 |
| Robert Hamilton | Son | — | 9 | ~1931 |
| Clara Hamilton | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 18
Worcester, Massachusetts · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | chauffeur |
| Industry | private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Worcester, Massachusetts
Head, age 28
Worcester, Massachusetts · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Repair man |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Radio Set | no |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Worcester-County, Massachusetts
Head, age 39
Worcester-County, Massachusetts · implied b. ~1901 — 10 household members
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1560 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Helen Hamilton (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helen Hamilton
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hamilton
Head · 1940 · age 39 · b. ~1901 · Massachusetts
★ 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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01715-00589)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruben Friedman | 34 | Head | Truck Driver | Massachusetts |
| 42 | Anna Friedman | 34 | Wife | — | Russia |
| 43 | Graham Friedman | 10 | Son | — | Massachusetts |
| 44 | Geraldine Friedman | 8 | Daughter | — | Maine |
| 45 | Marvin Friedman | 3 | Son | — | Massachusetts |
| 46 | Vernon Mcbramson | 35 | Head | Meat Inspector | Lithuania |
| 47 | Frieda Mcbramson | 31 | Wife | — | Poland |
| 48 | Samuel Mcbramson | 7 | Son | — | Massachusetts |
| 49 | Ester Mcbramson | 5 | Daughter | — | Massachusetts |
| 50 | Edith Mcbramson | 1 | Daughter | — | Massachusetts |
| 51 | Anna Q. Mccarthy | 31 | Head | — | Massachusetts |
| 52 | Kenneth Mccarthy | 13 | Son | — | Massachusetts |
| 53 | Roy Jr. Mccarthy | 11 | Son | — | Massachusetts |
| 54 | John Hamilton THIS PERSON | 39 | Head | Mechanic | Maine |
| 55 | Clara Hamilton | 35 | Wife | — | Massachusetts |
| 56 | Mary Hamilton | 17 | Daughter | — | Massachusetts |
| 57 | Bernard Hamilton | 15 | Son | — | Massachusetts |
| 58 | John Jr. Hamilton | 13 | Son | — | Massachusetts |
| 59 | Robert Hamilton | 9 | Son | — | Massachusetts |
| 60 | Richard Hamilton | 7 | Son | — | Massachusetts |
| 61 | Dorothy Hamilton | 4 | Daughter | — | Massachusetts |
| 62 | Barbara Hamilton | 1 | Daughter | — | Massachusetts |
| 63 | Nancy Hamilton | 0 | Daughter | — | Massachusetts |
| 64 | Morris Frangolis | 73 | Head | Peddler | Russia |
| 65 | Annie Frangolis | 63 | Wife | — | Russia |
| 66 | Anne Frangolis | 33 | Daughter | Clerk | England |
| 67 | Jacob Frangolis | 28 | Son | Laborer | Massachusetts |
| 68 | Rose Stayman | 78 | Boarder | — | Russia |
| 69 | Celia Tushman | 53 | Head | — | Russia |
| 70 | Max Tushman | 25 | Son | Welder | Massachusetts |
| 71 | Harry Tushman | 23 | Son | Engineer | Massachusetts |
| 72 | Rose Tushman | 21 | Daughter | Salesgirl | Massachusetts |
| 73 | Lorraine Tushman | 11 | Daughter | — | Massachusetts |
| 74 | Rose Frigon | 52 | Head | — | Massachusetts |
| 75 | Philip Frigon | 19 | Son | — | Massachusetts |
| 76 | Paul Frigon | 14 | Son | — | Massachusetts |
| 77 | Vytautas Bigaitis | 28 | Head | Bartender | Massachusetts |
| 78 | Anna Bigaitis | 26 | Wife | Machine Operator | Massachusetts |
Pedigree Summary
John
Gen 1 · 1 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)