JG
John Gleason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Gleason across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 3-person household.
Age 74
b. ~1866
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Gleason |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Watchman |
| Industry | City of Chicago |
| Class of Worker | GW |
| Hours Worked | 8 |
| Income (1939) | 400 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Watchman |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1866 |
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 |
|---|---|---|---|---|
| Margaret Gleason | Spouse | — | 73 | ~1867 |
| John Gleason | Head | — | 74 | ~1866 |
| Edward Gleason | Son | — | 43 | ~1897 |
Census Appearances
1920
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gleason |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Scotland |
| Occupation | Detective |
| Industry | Railroad Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 65
Cook, Illinois · implied b. ~1865 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gleason |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Watch man |
| Industry | City of Chgo |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 74
Cook-County, Illinois · implied b. ~1866 — 3 household members
| Surname | Gleason |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Watchman |
| Industry | City of Chicago |
| Class of Worker | GW |
| Hours Worked | 8 |
| Income (1939) | 400 |
| Highest Grade | 8 |
| 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 Gleason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Gleason
Head · 1940 · age 74 · b. ~1866 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00950-00718)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter P. Boyne | 36 | Head | Painter | Illinois |
| 2 | Dorothy Boyne | 32 | Wife | — | Illinois |
| 3 | Walter Jr. Boyne | 13 | Son | — | Illinois |
| 4 | Margaret Boyne | 8 | Daughter | — | Illinois |
| 5 | Patricia Boyne | 7 | Daughter | — | Illinois |
| 6 | Veronica Boyne | 5 | Daughter | — | Illinois |
| 7 | John Boyne | 3 | Son | — | Illinois |
| 8 | Dorothy M. Boyne | 0 | Daughter | — | Illinois |
| 9 | Raymond Etienne | 20 | Head | Laborer | Indiana |
| 10 | Gladys Etienne | 20 | Wife | — | Indiana |
| 11 | Eugene Daley | 15 | Brother | Laborer | Indiana |
| 12 | Carrie Etienne | 39 | Mother | — | Indiana |
| 13 | Raymond Jr. Etienne | 5 | Son | — | Canada |
| 14 | Anastasius Montastick | 60 | Head | — | Lithuania |
| 15 | Tiffany Montastick | 22 | Daughter | Office Clerk | Illinois |
| 16 | Michael Montastick | 27 | Son | Laborer | Illinois |
| 17 | Jean Montastick | 12 | Granddaughter | — | Illinois |
| 18 | Albert Spooner | 22 | Head | Laborer | Illinois |
| 19 | Anna Spooner | 22 | Wife | — | Illinois |
| 20 | John H. Gleason THIS PERSON | 74 | Head | Watchman | Illinois |
| 21 | Margaret Gleason | 73 | Wife | — | Illinois |
| 22 | Edward Gleason | 43 | Son | — | Illinois |
| 23 | Emil Roth | 34 | Head | Laborer | Illinois |
| 24 | Mary Roth | 31 | Wife | — | Illinois |
| 25 | Violet Roth | 12 | Daughter | — | Illinois |
| 26 | James Roth | 10 | Son | — | Illinois |
| 27 | Raymond Roth | 8 | Son | — | Illinois |
| 28 | Edwin Roth | 5 | Son | — | Illinois |
| 29 | John Roth | 3 | Son | — | Illinois |
| 30 | Mary Roth | 3 | Daughter | — | Illinois |
| 31 | George Roth | 2 | Son | — | Illinois |
| 32 | Emil Jr. Roth | 1 | Son | — | Illinois |
| 33 | William Gribben | 64 | Head | Clerk | New York |
| 34 | Mary Gribben | 61 | Wife | — | Illinois |
| 35 | Bernard O'Leary | 30 | Nephew | Bartender | Illinois |
| 36 | Thomas Mcdonough | 34 | Head | Laborer | Illinois |
| 37 | Caroline Mcdonough | 34 | Wife | — | Illinois |
| 38 | Thomas Jr. Mcdonough | 2 | Son | — | Illinois |
| 39 | Misinformed None | None | information | — | — |
| 40 | John Walmsley | 46 | Head | Noseman | 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)