JW
John Wallace — 1940 US Census Record
Model Tree available1940 United States Federal Census · Saline-County, Illinois
Our Model Tree links this John Wallace across the 1920, 1930 and 1940 US Censuses in Saline-County, Illinois (XGBoost, ~Confirmed), with identified parents Stephen & Lotta — first a son (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saline-County, Illinois |
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harrisburg City |
| 1935 Residence (County) | Saline |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Harrisburg City |
| Est. Birth Year | ~1920 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Lois Wallace | Daughter | — | 12 | ~1928 |
| John Wallace | Son | — | 20 | ~1920 |
| Agusta Wallace | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Saline, Illinois
Son, age
Saline, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Saline, Illinois
Son, age 10
Saline, Illinois · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Saline-County, Illinois
Son, age 20
Saline-County, Illinois · implied b. ~1920 — 3 household members
| Surname | Wallace |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Harrisburg City |
| 1935 Residence (County) | Saline |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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 Wallace across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Stephen Wallace (~0.92 confidence) and mother Lotta Wallace (~0.92 confidence) and father Ulys Wallace (~0.92 confidence) and mother Agusta Wallace (~0.92 confidence) and mother Augusta Wallace (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Stephen Wallace
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Lotta Wallace
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
Ulys Wallace
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Agusta Wallace
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Augusta Wallace
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Wallace
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Lois Wallace
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 — Saline-County, Illinois
Open full size
1940 US Federal Census — Saline-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00883-00760)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Agusta Wallace | 57 | Wife | — | Illinois |
| 2 | John Wallace THIS PERSON | 20 | Son | — | Illinois |
| 3 | Lois Wallace | 12 | Daughter | — | Illinois |
| 4 | John Edwards | 62 | Head | Laborer | Missouri |
| 5 | Nora Edwards | 55 | Wife | — | Kentucky |
| 6 | W. S. Dillard | 70 | Head | — | Illinois |
| 7 | Martha J. Dillard | 68 | Wife | — | Illinois |
| 8 | Earl D. Crabb | 37 | Head | Stenographer | Illinois |
| 9 | Helen Crabb | 34 | Wife | — | Illinois |
| 10 | Harold Dean Crabb | 9 | Son | — | Illinois |
| 11 | Darrel Gene Crabb | 9 | Son | — | Illinois |
| 12 | J. B. Crabb | 80 | Father | — | Mississippi |
| 13 | John Albert | 38 | Head | Laborer | Oklahoma |
| 14 | Prudy Albert | 29 | Wife | — | Kentucky |
| 15 | Caroline Sue Albert | 4 | Daughter | — | Illinois |
| 16 | Harold Holden | 28 | Head | Examiner | Illinois |
| 17 | Marcella Holden | 27 | Wife | — | Illinois |
| 18 | Harold Jr. Holden | 3 | Son | — | Illinois |
| 19 | Jerry Holden | 1 | Son | — | Illinois |
| 20 | Joel Stricklin | 71 | Head | Loader | Illinois |
| 21 | Nettie Stricklin | 68 | Wife | — | Illinois |
| 22 | William Evans | 70 | Boarder | — | Illinois |
| 23 | Charles Adams | 35 | Head | Laborer | Arkansas |
| 24 | Etta Adams | 36 | Wife | — | Illinois |
| 25 | Cleatis Adams | 17 | Son | — | Illinois |
| 26 | Kathaleen Adams | 13 | Daughter | — | Arkansas |
| 27 | Billie Don Adams | 2 | Son | — | Illinois |
| 28 | Lucy Mcatee | 67 | Head | — | Indiana |
| 29 | Joe Holden | 53 | Head | Face Boss | England |
| 30 | Vergie Holden | 47 | Wife | — | Indiana |
| 31 | Mattie Crabb | 32 | Head | — | Illinois |
| 32 | Anna Marie Crabb | 13 | Daughter | — | Illinois |
| 33 | Bernie Ewell | 37 | Head | Laborer | Illinois |
| 34 | Thelma Ewell | 31 | Wife | — | Illinois |
| 35 | Dorothy Mae Ewell | 15 | Daughter | — | Illinois |
| 36 | John L. Ewell | 12 | Son | — | Illinois |
| 37 | William Ewell | 9 | Son | — | Illinois |
| 38 | Cleatus Eugene Ewell | 6 | Son | — | Illinois |
| 39 | Shelby Jean Ewell | 1 | Daughter | — | Illinois |
| 40 | Gerald Jenkins | 29 | Head | Trucker | California |
Pedigree Summary
John + 1 sibling
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)