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Charles Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Charles Campbell across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Campbell |
| Given Name | Charles, Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Works |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 350 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Mckeesport City |
| Est. Birth Year | ~1921 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Campbell | Daughter | — | 15 | ~1925 |
| Patricia Campbell | Daughter | — | 12 | ~1928 |
| Charles Campbell | Head | — | 38 | ~1902 |
| Charles Campbell | Son | — | 19 | ~1921 |
| Hilda Campbell | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age
Allegheny, Pennsylvania · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Charles A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Charles A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 19
Allegheny-County, Pennsylvania · implied b. ~1921 — 5 household members
| Surname | Campbell |
| Given Name | Charles, Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | McKeesport City |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Steel Works |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 350 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Charles Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Campbell (~0.92 confidence) and father William Campbell (~0.92 confidence) and mother Sarah Campbell (~0.92 confidence) and father Charles Campbell (~0.92 confidence) and mother Hilda Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Campbell
b. ~1887
Source father
● Household
· direct · ~0.92
Father
William Campbell
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Sarah Campbell
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Charles Campbell
b. ~1902
Source father
● Household
· direct · ~0.92
Mother
Hilda Campbell
b. ~1903
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Campbell
Son · 1940 · age 19 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Elizabeth Campbell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Campbell
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03409-00200)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | August P. Crocker | 48 | Head | Brakeman | Maryland |
| 42 | Margaret M. Crocker | 40 | Wife | — | Pennsylvania |
| 43 | Glenn S. Hellman | 38 | Head | Carpenter | Pennsylvania |
| 44 | Elizabeth Hellman | 34 | Wife | — | Germany |
| 45 | Lois Hellman | 14 | Daughter | — | Pennsylvania |
| 46 | Glenn, Jr. Hellman | 10 | Son | — | Pennsylvania |
| 47 | Malcolm Hellman | 5 | Son | — | Pennsylvania |
| 48 | Steve Lesnansky | 50 | Head | Mechanic | Hungary |
| 49 | Helen Lesnansky | 39 | Wife | — | Pennsylvania |
| 50 | Stephen Lesnansky | 21 | Son | Laborer | Ohio |
| 51 | Theresa Lesnansky | 18 | Daughter | Clerk | Ohio |
| 52 | Dorothy Lesnansky | 16 | Daughter | — | W. Virginia |
| 53 | Jess D. Batchelor | 58 | Head | Laborer | Pennsylvania |
| 54 | Marie M. Batchelor | 55 | Wife | — | Pennsylvania |
| 55 | Blair J. Fields | 29 | Lodger | Laborer | Pennsylvania |
| 56 | Edith L. Fields | 28 | Daughter | Teacher | Pennsylvania |
| 57 | Charles Campbell | 38 | Head | Laborer | Pennsylvania |
| 58 | Hilda Campbell | 37 | Wife | — | Pennsylvania |
| 59 | Charles, Jr. Campbell THIS PERSON | 19 | Son | Laborer | Pennsylvania |
| 60 | Elizabeth Campbell | 15 | Daughter | — | Pennsylvania |
| 61 | Patricia Campbell | 12 | Daughter | — | Pennsylvania |
| 62 | Samuel, Jr. Barland | 32 | Head | Brakeman | Pennsylvania |
| 63 | Marie Barland | 32 | Wife | — | Pennsylvania |
| 64 | Ann Marie Barland | 11 | Daughter | — | Pennsylvania |
| 65 | Jack Barland | 4 | Son | — | Pennsylvania |
| 67 | Alfred E. Speidel | 33 | Head | Electrical | Pennsylvania |
| 68 | Ruth Speidel | 29 | Wife | — | Pennsylvania |
| 69 | Thomas Speidel | 1 | Son | — | Pennsylvania |
| 70 | Michael Mahoney | 51 | Head | Fireman | Poland |
| 71 | Josephine Mahoney | 50 | Wife | — | Germany |
| 72 | Allyson Mahoney | 18 | Son | — | Pennsylvania |
| 73 | Joseph Mahoney | 17 | Son | — | Pennsylvania |
| 74 | Gertrude Mahoney | 12 | Daughter | — | Pennsylvania |
| 75 | Martha Mahoney | 11 | Daughter | — | Pennsylvania |
| 76 | Alexander Nelson | 67 | Head | — | Sweden |
| 77 | Beda Nelson | 66 | Wife | — | Sweden |
| 78 | David E. Anderson | 24 | Lodger | Inspector | Indiana |
| 79 | Doris Mae Anderson | 22 | Daughter-in-law | Stenographer | Pennsylvania |
| 80 | Earl Stephan | 39 | Head | Welder | Pennsylvania |
Pedigree Summary
Charles + 2 siblings
Gen 1 · 5 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)