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Robert Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Robert Hamilton across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Robert & Ruth — first a son (b.~1918), then head of a 2-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence city |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Truck driver's helper |
| Industry | Trucking company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Truck Driver'S Helper |
| Township / Ward | Lawrence City |
| Est. Birth Year | ~1918 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ruth Hamilton | Head | — | 43 | ~1897 |
| Robert Hamilton | Son | — | 22 | ~1918 |
Census Appearances
1920
Essex, Massachusetts
Son, age 1
Essex, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 12
Essex, Massachusetts · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 22
Essex-County, Massachusetts · implied b. ~1918 — 2 household members
| Surname | Hamilton |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lawrence city |
| 1935 Residence (County) | Essex |
| Occupation | Truck driver's helper |
| Industry | Trucking company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Robert 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 Ruth Hamilton (~0.92 confidence) and mother Ruth Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Hamilton
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Ruth Hamilton
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ruth Hamilton
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hamilton
Son · 1940 · age 22 · b. ~1918 · 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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01583-01045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah A. Sunderland | 60 | Wife | — | Massachusetts |
| 42 | Misinformed Sunderland | None | by neighbors, | — | — |
| 43 | William Tellier | 39 | Head | Machinist | Canada-French |
| 44 | Esther Tellier | 32 | Wife | — | Michigan |
| 45 | Alan Tellier | 11 | Son | — | Massachusetts |
| 46 | Raymond Tellier | 8 | Son | — | Massachusetts |
| 47 | Thomas Mcevoy | 45 | Head | Molder | Massachusetts |
| 48 | Helen Mcevoy | 37 | Wife | Busler | New Hampshire |
| 49 | Thomas Mcevoy | 18 | Son | Staff Driver | Massachusetts |
| 50 | Elizabeth Madden | 75 | Head | — | Irish Free State |
| 51 | George Madden | 33 | Son | — | Massachusetts |
| 52 | Bernice Madden | 29 | Daughter | — | Massachusetts |
| 53 | John Wallace | 46 | Son-in-law | Laborer | Massachusetts |
| 54 | Catherine Wallace | 35 | Daughter | — | New Hampshire |
| 55 | Joan Wallace | 8 | Granddaughter | — | Massachusetts |
| 56 | Ruth Hamilton | 43 | Head | Seamstress | Massachusetts |
| 57 | Robert Hamilton THIS PERSON | 22 | Son | Truck Driver'S Helper | Massachusetts |
| 58 | Joseph Rivard | 37 | Head | Mill Operative | Massachusetts |
| 59 | Angelina Rivard | 42 | Wife | — | Massachusetts |
| 60 | Jeanne Rivard | 8 | Daughter | — | Massachusetts |
| 61 | Raymond Rivard | 7 | Son | — | Massachusetts |
| 62 | Doris Rivard | 6 | Daughter | — | Massachusetts |
| 63 | Louise Rivard | 4 | Daughter | — | Massachusetts |
| 64 | Clarence Rhodes | 31 | Head | Mill Operative | New Hampshire |
| 65 | Martha Rhodes | 31 | Wife | — | Massachusetts |
| 66 | Clarence Jr. Rhodes | 8 | Son | — | Massachusetts |
| 67 | Frances Rhodes | 7 | Son | — | Massachusetts |
| 68 | James Rhodes | 6 | Son | — | Massachusetts |
| 69 | Clara Rhodes | 3 | Daughter | — | Massachusetts |
| 70 | Carol Rhodes | 1 | Daughter | — | Massachusetts |
| 71 | Henry Hinchcliffe | 57 | Head | Mill Operative | Massachusetts |
| 72 | Margaret Hinchcliffe | 47 | Wife | — | Massachusetts |
| 73 | Everett Hinchcliffe | 28 | Son | Mill Operative | Massachusetts |
| 74 | Florence Hinchcliffe | 24 | Daughter | Winder | Massachusetts |
| 75 | Grace Hinchcliffe | 22 | Daughter | Mill Operative | Massachusetts |
| 76 | Malcolm Hinchcliffe | 20 | Son | Mill Operative | Massachusetts |
| 77 | Sarah Hinchcliffe | 69 | Head | — | Irish Free State |
| 78 | Clara Hinchcliffe | 38 | Daughter | Polishing Combs | Massachusetts |
| 79 | Henry Hinchcliffe | 36 | Son | None | Massachusetts |
Pedigree Summary
Robert
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)