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John Spencer — 1940 US Census Record
Model Tree available1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this John Spencer across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed), with identified parents Jesse — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Spencer |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Champaign |
| Est. Birth Year | ~1905 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Sharon Spencer | Daughter | — | 4 | ~1936 |
| Marcia Spencer | Daughter | — | 2 | ~1938 |
| John Spencer | Head | — | 35 | ~1905 |
| Elda Spencer | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Champaign, Illinois
Son, age 15
Champaign, Illinois · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Champaign, Illinois
Son, age 25
Champaign, Illinois · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Salesman |
| Industry | Radio |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Head, age 35
Champaign-County, Illinois · implied b. ~1905 — 4 household members
| Surname | Spencer |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Champaign |
| 1935 Residence (County) | Champaign |
| Occupation | Salesman |
| Industry | Insurance |
| Class of Worker | PW |
| Income (1939) | 1500 |
| Highest Grade | Hs 4 |
| 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 John Spencer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Jesse Spencer (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Jesse Spencer
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Spencer
Head · 1940 · age 35 · b. ~1905 · 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-t0627-00765-00634)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Genevieve Shauger | 6 | Daughter | — | Illinois |
| 42 | Charles Shauger | 5 | Son | — | Illinois |
| 43 | Donald Shauger | 2 | Son | — | Illinois |
| 44 | Ralph Sanders | 27 | Head | Salesman | Illinois |
| 45 | Virginia Sanders | 26 | Wife | — | Colorado |
| 46 | Joan Sanders | 1 | Daughter | — | Illinois |
| 47 | George D. Marshall | 54 | Head | Laborer Salesman | Illinois |
| 48 | Eva Marshall | 54 | Wife | — | Kansas |
| 49 | Everett E. Lasater | 25 | Head | Statman | Illinois |
| 50 | Gretchen Lasater | 27 | Wife | — | Illinois |
| 51 | Hanniel Harden | 19 | Roomer | Office | Illinois |
| 52 | Pearl Lewis | 51 | Head | Maid | Indiana |
| 53 | Linda Lewis | 29 | Daughter | Operator | Indiana |
| 54 | Vernon Lewis | 14 | Son | — | Illinois |
| 55 | Woodford H. Shute | 36 | Head | Manager | Indiana |
| 56 | Elma Shute | 29 | Wife | — | Wisconsin |
| 57 | John Barham | 44 | Head | Fireman | Illinois |
| 58 | Nellie Barham | 43 | Wife | — | Missouri |
| 59 | Thurman Barham | 23 | Son | Laborer | Illinois |
| 60 | Howard Barham | 20 | Son | New Worker | Illinois |
| 61 | Clyde C. Ligon | 43 | Head | Spotter | Kentucky |
| 62 | Beckham Daniel Ligon | 47 | Brother | — | Tennessee |
| 63 | John E. Sullivan | 28 | Head | Salesman | Illinois |
| 64 | Dorothy M. Sullivan | 26 | Wife | — | Illinois |
| 65 | Dorothy Sullivan | 3 | Daughter | — | Illinois |
| 66 | John P. Spencer THIS PERSON | 35 | Head | Salesman | Illinois |
| 67 | Elda Spencer | 29 | Wife | — | Illinois |
| 68 | Sharon Spencer | 4 | Daughter | — | Illinois |
| 69 | Marcia Spencer | 2 | Daughter | — | Illinois |
| 70 | Daniel P. O'Donnell | 39 | Head | Janitor | Illinois |
| 71 | Catherine O'Donnell | 38 | Wife | Printer | Illinois |
| 72 | Margaret O'Donnell | 14 | Daughter | — | Illinois |
| 73 | Eileen O'Donnell | 12 | Daughter | — | Illinois |
| 74 | Frank Thompson | 60 | Head | Carpenter | Illinois |
| 75 | Maude Thompson | 46 | Wife | Kitchen Help | Illinois |
| 76 | Esthaline Thompson | 16 | Daughter | — | Illinois |
| 77 | Lou Wells | 64 | Head | — | Illinois |
| 78 | Record Eleanor Wells | 24 | Daughter | Handicraft | Illinois |
| 79 | Darrell Wells | 7 | Grandson | — | Illinois |
| 80 | Donna Wells | 4 | Granddaughter | — | Illinois |
Pedigree Summary
John
Gen 1 · 1 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)