TJ
Thomas Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Thomas Johnson across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Thomas — first a head (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Johnson |
| Given Name | Thomas R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Shipping Clerk |
| Industry | Elec Mat Mfg Co |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Shipping Clerk |
| Township / Ward | Springfield |
| Est. Birth Year | ~1917 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Kay Johnson | Daughter | — | ~1940 | |
| Thomas Johnson | Head | — | 23 | ~1917 |
| Ronald Johnson | Son | — | 2 | ~1938 |
| Opal Johnson | Spouse | — | 21 | ~1919 |
Census Appearances
1920
Sangamon, Illinois
Son, age 3
Sangamon, Illinois · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Thomas R |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| 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
Sangamon, Illinois
Son, age 13
Sangamon, Illinois · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Thomas R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Sangamon-County, Illinois
Head, age 23
Sangamon-County, Illinois · implied b. ~1917 — 4 household members
| Surname | Johnson |
| Given Name | Thomas R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Occupation | Shipping Clerk |
| Industry | Elec Mat Mfg Co |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1200 |
| Highest Grade | H-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 Thomas Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Johnson (~0.92 confidence) and father Thomas Johnson (~0.92 confidence) and mother Ella Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Johnson
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Thomas Johnson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Ella Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Johnson
Head · 1940 · age 23 · b. ~1917 · 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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00887-01008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank G. Coulter | 52 | Head | Maintenance Man | Illinois |
| 42 | Marie D. Coulter | 52 | Wife | — | Illinois |
| 43 | Virginia A. Coulter | 22 | Daughter | — | Illinois |
| 44 | Doris M. Coulter | 22 | Daughter | — | Illinois |
| 45 | E. Leo Roth | 28 | Head | Truck Driver | Illinois |
| 46 | Mary Roth | 30 | Wife | Saleslady | Illinois |
| 47 | John Henry Ogle | 64 | Head | Owner | Indiana |
| 48 | Elizabeth A. Ogle | 56 | Wife | House Wife | Illinois |
| 49 | John Theiler | 62 | Lodger | Trucker | Illinois |
| 50 | Jesse F. R. Barton | 65 | Head | Cigar Maker | Kansas |
| 51 | Donzella D. Barton | 42 | Daughter | Teacher | Illinois |
| 52 | Bernice D. Barton | 38 | Daughter | — | Illinois |
| 53 | Earl G. Barton | 15 | Grandson | — | Illinois |
| 54 | Gale J. Barton | 8 | Grandson | — | Illinois |
| 55 | Lloyd C. Schuster | 21 | Head | Apprentice Carpenter | Illinois |
| 56 | Ann Schuster | 22 | Wife | — | Illinois |
| 57 | Betty Ann Schuster | 0 | Daughter | — | Illinois |
| 58 | Thomas R. Johnson THIS PERSON | 23 | Head | Shipping Clerk | Illinois |
| 59 | Opal W. Johnson | 21 | Wife | — | Illinois |
| 60 | Ronald Lee Johnson | 2 | Son | — | Illinois |
| 61 | Kay Johnson | 0 | Daughter | — | Illinois |
| 62 | Clarence P. Dillman | 38 | Head | Carpenter | Illinois |
| 63 | Mildred L. Dillman | 34 | Wife | — | Illinois |
| 64 | Don Eugene Dillman | 2 | Son | — | Illinois |
| 65 | John Seay | 38 | Head | Mechanic | Illinois |
| 66 | Mildred M. Seay | 35 | Wife | — | Illinois |
| 67 | Carol J. Seay | 11 | Daughter | — | Illinois |
| 68 | Ellen O. Seay | 9 | Daughter | — | Illinois |
| 69 | John E. Seay | 6 | Son | — | Illinois |
| 70 | Geredith Moyer | 29 | Head | Salesman | Illinois |
| 71 | Katherine E. Moyer | 27 | Wife | House Wife | Illinois |
| 72 | Nancy K. Moyer | 5 | Daughter | — | Illinois |
| 73 | Clara A. Ryan | 41 | Head | House Wife | Illinois |
| 74 | Patricia Ryan | 14 | Daughter | — | Illinois |
| 75 | Mary Ryan | 12 | Daughter | — | Illinois |
| 76 | Eileen Ryan | 9 | Daughter | — | Illinois |
| 77 | Irene Ryan | 9 | Daughter | — | Illinois |
| 78 | William Ryan | 5 | Son | — | Illinois |
| 79 | Carolyn Ryan | 4 | Daughter | — | Illinois |
| 80 | Barbara Ryan | 3 | Daughter | — | Illinois |
Pedigree Summary
Thomas
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)