JH
John Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Summit-County, Ohio
Our Model Tree links this John Hamilton across the 1920, 1930 and 1940 US Censuses in Summit-County, Ohio (XGBoost, ~Confirmed), with identified parents James & Margaret — first a head (b.~1903), then head of a 7-person household.
Age 37
b. ~1903
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Summit-County, Ohio |
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Akron |
| 1935 Residence (County) | Summit |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Salesman |
| Industry | Rubber |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 1935 Residence | Ohio |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Salesman |
| Township / Ward | Akron |
| Est. Birth Year | ~1903 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Hamilton | Head | — | 37 | ~1903 |
| Mrs Hamilton | Other | — | 65 | ~1875 |
| Sue Calabrese | Other | — | 23 | ~1917 |
| John Hamilton | Son | — | 9 | ~1931 |
| James Hamilton | Son | — | 6 | ~1934 |
| Robert Hamilton | Son | — | 3 | ~1937 |
| Ruth Hamilton | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 17
Cuyahoga, Ohio · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Alien |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Summit, Ohio
Head, age 27
Summit, Ohio · implied b. ~1903 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | John G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 25 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Sales Dept |
| Industry | Rubber Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 6000 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Summit-County, Ohio
Head, age 37
Summit-County, Ohio · implied b. ~1903 — 7 household members
| Surname | Hamilton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Akron |
| 1935 Residence (County) | Summit |
| Naturalization Status | Naturalized |
| Occupation | Salesman |
| Industry | Rubber |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 4 |
| 1935 Residence | Ohio |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 3 locations, using XGBoost record linkage. Identified parents: father James Hamilton (~0.92 confidence) and mother Margaret Hamilton (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Hamilton
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Margaret Hamilton
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hamilton
Head · 1940 · age 37 · b. ~1903 · Ohio
★ 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 — Summit-County, Ohio
Open full size
1940 US Federal Census — Summit-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03173-00513)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ralph P. Walker | 44 | Head | Truck Driver | Pennsylvania |
| 2 | Genevieve Walker | 45 | Wife | — | Michigan |
| 3 | Hilliard Huff | 27 | Son | Salesman | Michigan |
| 4 | Addison Slear | 57 | Head | — | Ohio |
| 5 | Barnet Slear | 28 | Daughter | Stenographer | Ohio |
| 6 | Jack Slear | 23 | Son | Trucker | Ohio |
| 7 | Charles Slear | 20 | Son | Truck Driver | Ohio |
| 8 | Max Slear | 17 | Son | Usher | Ohio |
| 9 | John Ludwig | 48 | Head | Rubber Worker | Yugoslavia |
| 10 | Rose Ludwig | 47 | Wife | — | Yugoslavia |
| 11 | Gregory Ludwig | 23 | Son | Truck Driver | Ohio |
| 12 | Walter Petroski | 26 | Head | Mill Man | Pennsylvania |
| 13 | Mary Petroski | 23 | Wife | — | Ohio |
| 14 | James Franklin | 43 | Head | Rubber Worker | Ohio |
| 15 | Ruth Franklin | 43 | Wife | — | Ohio |
| 16 | Norma Franklin | 18 | Daughter | — | Ohio |
| 17 | Alex Denicolo | 56 | Head | Laborer | Italy |
| 18 | Annetta Denicolo | 46 | Wife | — | Ohio |
| 19 | Nick Modugno | 25 | Head | Rubber Worker | Ohio |
| 20 | Anna Modugno | 22 | Wife | — | Ohio |
| 21 | Ends Hear | 7 | BLOCK | — | — |
| 22 | Guy Howard Stevens | 48 | Head | Judge | Ohio |
| 23 | Lucy Sawyer Stevens | 47 | Wife | — | Ohio |
| 24 | Carl Stevens | 10 | Son | — | Ohio |
| 25 | Tabitha Shively | 26 | Housekeeper | Housekeeper | Ohio |
| 26 | Mary Taylor | 49 | Maid | Maid | Kentucky |
| 27 | Hon. Thomas Sawyer | 77 | Head | Real Estate | Ohio |
| 28 | John Hamilton THIS PERSON | 37 | Head | Salesman | Scotland |
| 29 | Ruth A. Hamilton | 36 | Wife | — | Ohio |
| 30 | John Jr. Hamilton | 9 | Son | — | Ohio |
| 31 | James S. Hamilton | 6 | Son | — | Ohio |
| 32 | Robert E. Hamilton | 3 | Son | — | Ohio |
| 33 | Mrs. James Hamilton | 65 | Mother | — | Scotland |
| 34 | Sue Calabrese | 23 | Maid | Maid | Ohio |
| 35 | Mandy Blackburn | 41 | Head | Laborer | North Carolina |
| 36 | Avon Little | 54 | Boarder | Laborer | North Carolina |
| 37 | Fred Harris | 40 | Head | Laborer | Arkansas |
| 38 | Peter Ervin | 54 | Head | Laborer | Italy |
| 39 | Pauline Ervin | 49 | Wife | — | Italy |
| 40 | Antoinette Ervin | 14 | Daughter | — | Ohio |
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)