TC
Thomas Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Thomas Campbell across the 1910, 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a head (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Campbell |
| Given Name | Thomas R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland City |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | President |
| Industry | Coal Yard |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | President |
| Township / Ward | Cleveland City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Campbell | Head | — | 37 | ~1903 |
| Ellen Campbell | Other | — | 70 | ~1870 |
| Vincent Campbell | Other | — | 31 | ~1909 |
| James Campbell | Son | — | 1 | ~1939 |
| Thomas Campbell | Son | — | 5 | ~1935 |
| Dorothy Campbell | Spouse | — | 33 | ~1907 |
Census Appearances
1910
Cuyahoga, Ohio
Son, age 8
Cuyahoga, Ohio · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Cuyahoga, Ohio
Son, age 17
Cuyahoga, Ohio · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas K |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 27
Cuyahoga, Ohio · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Manager |
| Industry | Coal Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Head, age 37
Cuyahoga-County, Ohio · implied b. ~1903 — 6 household members
| Surname | Campbell |
| Given Name | Thomas R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland City |
| 1935 Residence (County) | Cuyahoga |
| Occupation | President |
| Industry | Coal Yard |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Thomas Campbell across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Campbell (~0.92 confidence) and father Thomas Campbell (~0.92 confidence) and father Thomas Campbell (~0.92 confidence) and mother Ellen Campbell (~0.92 confidence) and mother Ellen Campbell (~0.92 confidence) and mother Helen Campbell (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Campbell
b. ~1858
Source father
● Household
· direct · ~0.92
Father
Thomas Campbell
b. ~1859
Source father
● Household
· direct · ~0.92
Father
Thomas Campbell
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Ellen Campbell
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Ellen Campbell
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Helen Campbell
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Campbell
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 — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03203-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | De Arv G. Barton | 37 | Head | Sales Manager | Iowa |
| 2 | Dorothy D. Barton | 34 | Wife | — | Ohio |
| 3 | De Ann Barton | 2 | Daughter | — | Ohio |
| 4 | Violet Koper | 20 | Servant | Servant | Pennsylvania |
| 5 | Laszlo Endrey | 51 | Head | Physician & Surgeon | Hungary |
| 6 | Irene Endrey | 50 | Wife | Physician | Hungary |
| 7 | Irene Strachavsky | 40 | Lodger | Cashier | Ohio |
| 8 | Yola Banyasz | 20 | Servant | Servant | Pennsylvania |
| 9 | Ferdinand Eggers | 64 | Head | Auditor | Ohio |
| 10 | Elizabeth Eggers | 58 | Wife | — | Ohio |
| 11 | Thomas R. Campbell THIS PERSON | 37 | Head | President | Ohio |
| 12 | Dorothy Campbell | 33 | Wife | — | Ohio |
| 13 | Thomas R. Jr. Campbell | 5 | Son | — | Ohio |
| 14 | James P. Campbell | 1 | Son | — | Ohio |
| 15 | Ellen Campbell | 70 | Mother | — | Ohio |
| 16 | Vincent Campbell | 31 | Brother | Secretary | Ohio |
| 17 | Mabel D. Church | 60 | Head | — | Michigan |
| 18 | William R. Church | 26 | Son | Accountant | Ohio |
| 19 | Jane Church | 22 | Daughter | Stenographer | Ohio |
| 20 | Robert L. Burke | 64 | Head | President | Ohio |
| 21 | Mamie Kordmeyer | 46 | Housekeeper | Housekeeper | Ohio |
| 22 | Charles A. Grager | 74 | Head | Optometrist | Ohio |
| 23 | Nettie E. Grager | 70 | Wife | — | Ohio |
| 24 | David D. Simpson | 70 | Head | — | Pennsylvania |
| 25 | Annie D. Allen | 80 | Head | — | Massachusetts |
| 26 | Marion C. Allen | 41 | Daughter | Dietitian | New York |
| 27 | Harold Ford | 40 | Head | Dealer | Canada-English |
| 28 | Carol Ford | 41 | Wife | — | Canada-English |
| 29 | Marcia Ford | 19 | Daughter | — | Canada-English |
| 30 | Esther F. Ludwig | 75 | Head | — | New York |
| 31 | Ida D. Ihman | 50 | Head | — | Pennsylvania |
| 32 | Daniel Kolliker | 38 | Head | Steel Inspector | Ohio |
| 33 | Marion Kolliker | 38 | Wife | — | Ohio |
| 34 | John Geiger | 56 | Head | Custodian | Roumania |
| 35 | Sara O. Geiger | 52 | Wife | — | Roumania |
| 36 | Adelaide Geiger | 18 | Daughter | Saleslady | Ohio |
| 37 | Helen Starr | 46 | Head | Record Clerk | Iowa |
| 38 | Mary K. O'Leary | 43 | Visitor | — | Iowa |
| 39 | Paul G. Klatt | 42 | Head | Waiter | Germany |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 6 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)