JC
James Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this James Campbell across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Ray & Raymond — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Campbell |
| Given Name | James D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 22 |
| Income (1939) | 220 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Urbana City |
| Est. Birth Year | ~1919 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ray Campbell | Head | — | 48 | ~1892 |
| James Campbell | Son | — | 21 | ~1919 |
| Nora Campbell | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Champaign, Illinois
Son, age 1
Champaign, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | James D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Son, age 11
Champaign, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | James D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Son, age 21
Champaign-County, Illinois · implied b. ~1919 — 3 household members
| Surname | Campbell |
| Given Name | James D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Urbana City |
| 1935 Residence (County) | Champaign |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 22 |
| Income (1939) | 220 |
| Highest Grade | C 3 |
| 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 James Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ray Campbell (~0.92 confidence) and father Raymond Campbell (~0.92 confidence) and father Raymond Campbell (~0.92 confidence) and mother Nora Campbell (~0.92 confidence) and mother Nora Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ray Campbell
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Raymond Campbell
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Raymond Campbell
b. ~1903
Source father
● Household
· direct · ~0.92
Mother
Nora Campbell
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Nora Campbell
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Campbell
Son · 1940 · age 21 · b. ~1919 · Illinois
★ 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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Julia Shabbeton | 47 | Lodger | — | Pennsylvania |
| 2 | Ray L. Thulem | 41 | Head | Owner | Illinois |
| 3 | Betty Claire Thulem | 13 | Daughter | — | Iowa |
| 4 | Clarence P. Slater | 51 | Head | Purchasing Agent | Iowa |
| 5 | Elsa O. Slater | 51 | Wife | — | Illinois |
| 6 | Paul Slater | 21 | Son | — | Iowa |
| 7 | Ellen Maria Slater | 19 | Daughter | — | Iowa |
| 8 | Elmer Clarence Beach | 32 | Head | Roofing Contractor | Illinois |
| 9 | Alice J. Beach | 36 | Wife | — | Illinois |
| 10 | Shirley Rae Beach | 11 | Daughter | — | Illinois |
| 11 | Wanda Isabelle Beach | 8 | Daughter | — | Illinois |
| 12 | Ray B. Campbell | 48 | Head | Owner | Illinois |
| 13 | Nora A. Campbell | 43 | Wife | Owner | Illinois |
| 14 | James D. Campbell THIS PERSON | 21 | Son | Clerk | Illinois |
| 15 | Frank A. Douglas | 58 | Head | Director Of Extension | Missouri |
| 16 | Ida Mae Douglas | 59 | Wife | — | Kansas |
| 17 | Lawrence W. Douglas | 20 | Son | — | Illinois |
| 18 | Alfred Douglas | 15 | Son | — | Illinois |
| 19 | Francis Graham Watson | 37 | Head | Professor Pol Sc | Texas |
| 20 | Millicent Rawson Watson | 36 | Wife | — | Missouri |
| 21 | Robert Rawson Watson | 6 | Son | — | Washington |
| 22 | Leon A. Remington | 32 | Head | Asst Professor | Michigan |
| 23 | Mary E. Remington | 35 | Wife | — | Maryland |
| 24 | Lillian E. Butler | 46 | Head | — | Canada |
| 25 | Lillian C. Butler | 26 | Daughter | — | Illinois |
| 26 | William J. Butler | 21 | Son | — | Illinois |
| 27 | Joseph F. Wright | 47 | Head | Director Of Publicity | Illinois |
| 28 | Hazel Post Wright | 43 | Wife | — | Pennsylvania |
| 29 | Doris Wright | 17 | Daughter | — | Illinois |
| 30 | Frances Wright | 76 | Mother | — | Missouri |
| 31 | — | None | — | — | — |
| 32 | Garret L. Jordan | 43 | Head | Professor Ag Ec | Indiana |
| 33 | Alberta Rice Jordan | 42 | Wife | — | Kentucky |
| 34 | Jane G. Jordan | 15 | Daughter | — | Indiana |
| 35 | Carl S. Marvel | 46 | Head | Organic Chem Professor | Illinois |
| 36 | Alberta Hughes Marvel | 40 | Wife | — | Indiana |
| 37 | Mary Catherine Marvel | 4 | Daughter | — | Illinois |
| 38 | John Thomas Marvel | 1 | Son | — | Illinois |
| 39 | Ray W. Snyder | 50 | Head | Owner | Illinois |
| 40 | Ruth M. Snyder | 47 | Wife | — | Illinois |
Pedigree Summary
James
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)