TC
Thomas Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Indiana-County, Pennsylvania
Our Model Tree links this Thomas Campbell across the 1910, 1920, 1930 and 1940 US Censuses in Indiana-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Carle & J — first a head (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Indiana-County, Pennsylvania |
| Surname | Campbell |
| Given Name | Thomas M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Armstrong Twp |
| 1935 Residence (County) | Indiana |
| Additional Details | |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Farmer |
| Township / Ward | Armstrong Twp |
| Est. Birth Year | ~1897 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Ruth Campbell | Daughter | — | 5 | ~1935 |
| Janet Campbell | Daughter | — | 3 | ~1937 |
| Thomas Campbell | Head | — | 43 | ~1897 |
| Florence Campbell | Spouse | — | 37 | ~1903 |
Census Appearances
1910
Indiana, Pennsylvania
Son, age 11
Indiana, Pennsylvania · implied b. ~1899 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Indiana, Pennsylvania
Son, age 21
Indiana, Pennsylvania · implied b. ~1899 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thos M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | Home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Indiana, Pennsylvania
Son, age 31
Indiana, Pennsylvania · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Thomas M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Indiana-County, Pennsylvania
Head, age 43
Indiana-County, Pennsylvania · implied b. ~1897 — 4 household members
| Surname | Campbell |
| Given Name | Thomas M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Armstrong Twp |
| 1935 Residence (County) | Indiana |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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: mother Carle Campbell (~0.92 confidence) and father J Campbell (~0.92 confidence) and mother Pearl Campbell (~0.92 confidence) and father Ross Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Carle Campbell
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
J Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Pearl Campbell
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Ross Campbell
b. ~1874
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Campbell
Head · 1940 · age 43 · b. ~1897 · Pennsylvania
★ 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 — Indiana-County, Pennsylvania
Open full size
1940 US Federal Census — Indiana-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03516-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hugh Higgins | 25 | Head | Miner | Pennsylvania |
| 2 | Arlene Higgins | 20 | Wife | — | Pennsylvania |
| 3 | Frank Carazzina | 46 | Head | Miner | Italy |
| 4 | Grocacia Carazzina | 39 | Wife | — | Italy |
| 5 | Anthony Carazzina | 16 | Son | — | Pennsylvania |
| 6 | Josephine Carazzina | 15 | Daughter | — | Pennsylvania |
| 7 | Mary Carazzina | 13 | Daughter | — | Pennsylvania |
| 8 | Frank Jr Carazzina | 11 | Son | — | Pennsylvania |
| 9 | Virginia Carazzina | 10 | Daughter | — | Pennsylvania |
| 10 | Arthur Craig | 26 | Head | Miner | Pennsylvania |
| 11 | Martha Craig | 22 | Wife | — | Pennsylvania |
| 12 | Gerald Craig | 2 | Son | — | Pennsylvania |
| 13 | James Craig | 0 | Son | — | Pennsylvania |
| 14 | Thomas M Campbell THIS PERSON | 43 | Head | Farmer | Pennsylvania |
| 15 | Florence B Campbell | 37 | Wife | — | Pennsylvania |
| 16 | Ruth M Campbell | 5 | Daughter | — | Pennsylvania |
| 17 | Janet P Campbell | 3 | Daughter | — | Pennsylvania |
| 18 | Jesse Beck | 26 | Head | Miner | Pennsylvania |
| 19 | Marybelle Beck | 26 | Wife | — | Pennsylvania |
| 20 | Harry Mellan | 31 | Head | Miner | Pennsylvania |
| 21 | Evelyn Mellan | 28 | Wife | — | Pennsylvania |
| 22 | Patricia Mellan | 9 | Daughter | — | Pennsylvania |
| 23 | Robert Mellan | 5 | Son | — | Pennsylvania |
| 24 | Robert Harry Mellan | 62 | Head | Farmer | Pennsylvania |
| 25 | Irene Mellan | 60 | Wife | — | Pennsylvania |
| 26 | Kenneth Mellan | 19 | Son | Hired Hand | Pennsylvania |
| 27 | J. D. Laney | 49 | Head | Lumbering | Pennsylvania |
| 28 | Emma A Laney | 47 | Wife | — | Pennsylvania |
| 29 | Ernest Wilkinson | 23 | Head | Labor | Pennsylvania |
| 30 | Ermina Wilkinson | 20 | Wife | — | Pennsylvania |
| 31 | Jerry George Wilkinson | 1 | Son | — | Pennsylvania |
| 32 | Charles A Wilkinson | 72 | Head | Farmer | Pennsylvania |
| 33 | Harvey O Wilkinson | 33 | Son | Nurs. Man | Pennsylvania |
| 34 | Sarah Wilkinson | 57 | Head | — | Pennsylvania |
| 35 | Wayne Lander | 29 | Head | Mechanic | Pennsylvania |
| 36 | Pearl O Lander | 26 | Wife | — | Pennsylvania |
| 37 | Betty Marie Lander | 8 | Daughter | — | Pennsylvania |
| 38 | Harold E Lander | 6 | Son | — | Pennsylvania |
| 39 | Clarence L Lander | 5 | Son | — | Pennsylvania |
| 40 | Wayne Jr Lander | 4 | Son | — | Pennsylvania |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 4 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)