WC
Walter Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Walter Campbell across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Freight handler |
| Industry | Cartage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 480 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Freight Handler |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1916 |
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 Walter | Age | Birth yr |
|---|---|---|---|---|
| Walter Campbell | Son | — | 24 | ~1916 |
| Albert Campbell | Son | — | 28 | ~1912 |
| Albert Campbell | Head | — | 54 | ~1886 |
| James Campbell | Son | — | 26 | ~1914 |
| James Campbell | Other | — | 6 | ~1934 |
| Gertrude Campbell | Other | — | 26 | ~1914 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 24
Cook-County, Illinois · implied b. ~1916 — 6 household members
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Freight handler |
| Industry | Cartage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 480 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Walter Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Campbell (~0.92 confidence) and father Albert Campbell (~0.92 confidence) and mother Annie Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Campbell
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Albert Campbell
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Annie Campbell
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Campbell
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
James Campbell
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Campbell
Sibling · 1940 · age 28
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00945-00641)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Kwiat | 15 | Son | — | Illinois |
| 2 | Lorraine Kwiat | 13 | Daughter | — | Illinois |
| 3 | Stanley Kwiat | 10 | Son | — | Illinois |
| 4 | Alvina Kwiat | 7 | Daughter | — | Illinois |
| 5 | Fred Thurman | 58 | Head | Foreman | England |
| 6 | Tillie Thurman | 52 | Wife | — | Illinois |
| 7 | Stanley Martin | 43 | Head | Automobile Mechanic | Illinois |
| 8 | Martha Martin | 38 | Wife | — | Pennsylvania |
| 9 | Steven Siebert | 44 | Son-in-law | Laborer | Pennsylvania |
| 10 | George Stapert | 46 | Head | Baker | Illinois |
| 11 | Amelia Stapert | 46 | Wife | Caster | Illinois |
| 12 | Charles Donnelly | 28 | Son-in-law | Motorman | Illinois |
| 13 | Vivian Donnelly | 27 | Daughter | Pharmacist | Illinois |
| 14 | Leo Mason | 37 | Head | Clerk | Illinois |
| 15 | Christiana Mason | 34 | Wife | Nurse | Pennsylvania |
| 16 | Patricia Mason | 8 | Daughter | — | Illinois |
| 17 | John E. Mccarthy | 30 | Head | Conductor | Illinois |
| 18 | Catherine Mccarthy | 36 | Wife | Dictaphone Operator | Illinois |
| 19 | Eileen Mccarthy | 14 | Daughter | — | Illinois |
| 20 | William Mccarthy | 13 | Son | — | Illinois |
| 21 | John Mccarthy | 9 | Son | — | Illinois |
| 22 | Carol Mccarthy | 5 | Daughter | — | Illinois |
| 23 | Albert Campbell | 54 | Head | Fireman | England |
| 24 | Albert Jr. Campbell | 28 | Son | Office Clerk | Illinois |
| 25 | Walter Campbell THIS PERSON | 24 | Son | Freight Handler | Illinois |
| 26 | James Campbell | 26 | Son | Truck Driver | Illinois |
| 27 | Gertrude Campbell | 26 | Daughter-in-law | — | Illinois |
| 28 | James Jr. Campbell | 6 | Grandson | — | Illinois |
| 29 | Charles Kennally | 29 | Head | Stereotyper | Illinois |
| 30 | Patricia Kennally | 29 | Wife | — | Illinois |
| 31 | Patricia Kennally | 2 | Daughter | — | Illinois |
| 32 | Edward Klingberg | 47 | Head | Pressman | Illinois |
| 33 | Mae Klingberg | 42 | Wife | — | Illinois |
| 34 | Edward Klingberg | 22 | Son | Mailer | Illinois |
| 35 | Laverne Klingberg | 20 | Daughter | — | Illinois |
| 36 | Gilbert Klingberg | 18 | Son | Pinsetter | Illinois |
| 37 | Kenneth Klingberg | 16 | Son | — | Illinois |
| 38 | Dorothy Klingberg | 14 | Daughter | — | Illinois |
| 39 | Harry Klingberg | 12 | Son | — | Illinois |
| 40 | Louis Busik | 40 | Head | Painter (Night Car) | Poland |
Pedigree Summary
Walter + 2 siblings
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)