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John Robertson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tazewell-County, Illinois
Our Model Tree links this John Robertson across the 1920, 1930 and 1940 US Censuses in Tazewell-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tazewell-County, Illinois |
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tazewell |
| Additional Details | |
| Occupation | Laborer |
| Industry | Sewer construction |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 250 |
| Highest Grade | No 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Tremont Village |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Charles Robertson | Head | — | 76 | ~1864 |
| John Robertson | Son | — | 31 | ~1909 |
| Anna Robertson | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Tazewell, Illinois
Son, age 11
Tazewell, Illinois · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Tazewell, Illinois
Son, age 21
Tazewell, Illinois · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Tazewell-County, Illinois
Son, age 31
Tazewell-County, Illinois · implied b. ~1909 — 3 household members
| Surname | Robertson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tazewell |
| Occupation | Laborer |
| Industry | Sewer construction |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 250 |
| Highest Grade | No 6 |
| 1935 Residence | Illinois |
| 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 Robertson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Robertson (~0.92 confidence) and father Charles Robertson (~0.92 confidence) and father Charlie Robertson (~0.92 confidence) and mother Annie Robertson (~0.92 confidence) and mother Anna Robertson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Robertson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Charles Robertson
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Charlie Robertson
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Annie Robertson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Anna Robertson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Robertson
Son · 1940 · age 31 · b. ~1909 · 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 — Tazewell-County, Illinois
Open full size
1940 US Federal Census — Tazewell-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00894-00196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Cooper | 18 | Son | Truck Driver | Illinois |
| 2 | Mary Cooper | 15 | Daughter | — | Illinois |
| 3 | Gene Cooper | 10 | Son | — | Illinois |
| 4 | Jack Cooper | 7 | Son | — | Illinois |
| 5 | Bonnie Cooper | 4 | Daughter | — | Illinois |
| 6 | Gary Cooper | 2 | Son | — | Illinois |
| 7 | Dennis Cooper | 0 | Son | — | Illinois |
| 8 | Charles Robertson | 76 | Head | — | Illinois |
| 9 | Anna B Robertson | 56 | Wife | — | Illinois |
| 10 | John Robertson THIS PERSON | 31 | Son | Laborer | Illinois |
| 11 | John Saseman | 70 | Head | — | Illinois |
| 12 | Fannie Saseman | 66 | Wife | — | Indiana |
| 13 | Ray Saseman | 33 | Son | Laborer | Illinois |
| 14 | Glenn Gibson | 44 | Head | Proprietor | Illinois |
| 15 | Mable Gibson | 44 | Wife | — | Illinois |
| 16 | Robert Gibson | 9 | Son | — | Illinois |
| 17 | Donald Gibson | 3 | Son | — | Illinois |
| 18 | Carl Schimmelfennig | 40 | Head | Proprietor Mechanic | Illinois |
| 19 | Flankie Schimmelfennig | 37 | Wife | — | Illinois |
| 20 | Janice Schimmelfennig | 2 | Daughter | — | Illinois |
| 21 | William Bellinger | 55 | Head | Proprietor | Illinois |
| 22 | Ella Bellinger | 42 | Wife | — | Illinois |
| 23 | Shirley Bellinger | 14 | Daughter | — | Illinois |
| 24 | Gale Bellinger | 11 | Son | — | Illinois |
| 25 | Ernest Gardner | 53 | Head | — | Indiana |
| 26 | Martha Gardner | 50 | Wife | — | Illinois |
| 27 | Richard Gardner | 19 | Son | Sample Cutter | Illinois |
| 28 | Eugene Gardner | 12 | Son | — | Illinois |
| 29 | Coy Freeman | 32 | Son-in-law | Yard Maintenance | Illinois |
| 30 | Juanita Freeman | 30 | Daughter | — | Illinois |
| 31 | Luther Green | 64 | Head | — | Illinois |
| 32 | Mattie Green | 59 | Wife | — | Illinois |
| 33 | Cleo Green | 23 | Son | Teacher | Illinois |
| 34 | Leo Green | 23 | Son | Kilnman | Illinois |
| 35 | Alvin Herman | 42 | Head | Truck Driver | Illinois |
| 36 | Madeline Herman | 35 | Wife | — | Illinois |
| 37 | Gary Herman | 2 | Son | — | Illinois |
| 38 | Henry Mcschwenzen | 51 | Head | Laborer | Illinois |
| 39 | Rural Mcschwenzen | 50 | Wife | — | Colorado |
| 40 | Marjorie Mcschwenzen | 21 | Daughter | Asst. Postmistress | Illinois |
Pedigree Summary
John
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)