TJ
Thomas Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Thomas Johnston across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 7-person household.
Age 51
b. ~1889
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Street Dept |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 480 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1889 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| June Johnston | Daughter | — | 10 | ~1930 |
| Joseph Johnston | Son | — | 23 | ~1917 |
| Eileen Johnston | Daughter | — | 14 | ~1926 |
| Thomas Johnston | Head | — | 51 | ~1889 |
| Patricia Johnston | Daughter | — | 6 | ~1934 |
| Charlotte Johnston | Daughter | — | 17 | ~1923 |
| Alice Johnston | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Cook, Illinois
Head, age 42
Cook, Illinois · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 65 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 51
Cook-County, Illinois · implied b. ~1889 — 7 household members
| Surname | Johnston |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Street Dept |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 480 |
| Highest Grade | No 8 |
| 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 Thomas Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Johnston
Head · 1940 · age 51 · b. ~1889 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00944-00777)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Peter Markas | 43 | Lodger | Laborer | Illinois |
| 42 | Vienal Rhoyes | 31 | Head | Drill Press | Illinois |
| 43 | Ruth Rhoyes | 31 | Wife | — | Illinois |
| 44 | La Verne Rhoyes | 11 | Daughter | — | Illinois |
| 45 | Vienal Rhoyes | 9 | Son | — | Illinois |
| 46 | Thomas Johnston | 24 | Head | Laborer | Illinois |
| 47 | Gertrude Johnston | 22 | Wife | — | Illinois |
| 48 | Thomas Johnston | 4 | Son | — | Illinois |
| 49 | Winifred Johnston | 22 | Head | Seamstress | Illinois |
| 50 | Teresa Johnston | 5 | Daughter | — | Illinois |
| 51 | Marjorie Johnston | 3 | Daughter | — | Illinois |
| 52 | Anne Raffert | 63 | Head | — | Illinois |
| 53 | William Wilson | 37 | Head | Policeman | Illinois |
| 54 | Thomas Johnston THIS PERSON | 51 | Head | Laborer | Illinois |
| 55 | Alice Johnston | 46 | Wife | — | Illinois |
| 56 | Joseph Johnston | 23 | Son | — | Illinois |
| 57 | Charlotte Johnston | 17 | Daughter | — | Illinois |
| 58 | Eileen Johnston | 14 | Daughter | — | Illinois |
| 59 | June Johnston | 10 | Daughter | — | Illinois |
| 60 | Patricia Johnston | 6 | Daughter | — | Illinois |
| 61 | John Miller | 60 | Head | Laborer | Canada |
| 62 | Edith Miller | 56 | Wife | — | Illinois |
| 63 | George Mills | 71 | Head | Laborer | Canada |
| 64 | Gordon Mills | 17 | Son | — | Illinois |
| 65 | Edna Carl | 35 | Head | — | Illinois |
| 66 | Grace Carl | 18 | Daughter | Office Clerk | Illinois |
| 67 | Helen Carl | 14 | Daughter | — | Illinois |
| 68 | Rudolph Scheide | 52 | Head | — | Illinois |
| 69 | Cora Scheide | 45 | Wife | — | Indiana |
| 70 | Margaret Scheide | 13 | Daughter | — | Illinois |
| 71 | Marie Mitchell | 72 | Head | — | Ireland |
| 72 | John Mitchell | 46 | Son | Laborer | Illinois |
| 73 | Marie Donnelly | 40 | Lodger | Operator | Illinois |
| 74 | Rose Donnelly | 13 | Lodger | — | Illinois |
| 75 | John Krantz | 32 | Head | Clerk | Illinois |
| 76 | Ruth Krantz | 22 | Wife | — | Illinois |
| 77 | Marion Krantz | 11 | Daughter | — | Illinois |
| 78 | Donald Krantz | 6 | Son | — | Illinois |
| 79 | Caryl Krantz | 1 | Daughter | — | Illinois |
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)