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John Bryant — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Bryant across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1902), then head of a 12-person household.
Age 38
b. ~1902
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Bryant |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Occupation | Owner & Mgr |
| Industry | Print Shop |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Owner & Mgr |
| Township / Ward | Chicago |
| Est. Birth Year | ~1902 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Pietrowicz | Daughter | — | 29 | ~1911 |
| Geraldine O'Connell | Daughter | — | 32 | ~1908 |
| Mary Bryant | Daughter | — | 27 | ~1913 |
| Louise Bryant | Daughter | — | 35 | ~1905 |
| Grace Bryant | Daughter | — | 32 | ~1908 |
| Louise Bryant | Head | — | 55 | ~1885 |
| Bessie Denton | Other | — | 49 | ~1891 |
| Grace Koerper | Other | — | 19 | ~1921 |
| John Bryant | Son | — | 38 | ~1902 |
| Philip O'Connell | Son | — | 37 | ~1903 |
| Albert Bryant | Son | — | 23 | ~1917 |
| Allen Grant | Son | — | 21 | ~1919 |
Census Appearances
1930
Cook, Illinois
Son, age 28
Cook, Illinois · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bryant |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | England |
| Occupation | Drug Clerk |
| Industry | State of Illinois |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 38
Cook-County, Illinois · implied b. ~1902 — 12 household members
| Surname | Bryant |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | COOK |
| Occupation | Owner & Mgr |
| Industry | Print Shop |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| 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 John Bryant across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Bryant
Son · 1940 · age 38 · b. ~1902 · Illinois
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Sibling
Grace Bryant
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Grant
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Bryant
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine O'Connell
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Bryant
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Pietrowicz
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip O'Connell
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Bryant
Sibling · 1940 · age 35
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 — 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-t0627-01017-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise H. Bryant | 55 | Head | — | New York |
| 2 | Louise Bryant | 35 | Daughter | Secretary | Illinois |
| 3 | Grace P. Bryant | 32 | Daughter | Secretary | Illinois |
| 4 | John J. Bryant THIS PERSON | 38 | Son | Owner & Mgr | Illinois |
| 5 | Mary I. Bryant | 27 | Daughter | Secretary | Illinois |
| 6 | Albert Bryant | 23 | Son | Printer Helper | Illinois |
| 7 | Philip J. O'Connell | 37 | Son | Partner | Illinois |
| 8 | Geraldine O'Connell | 32 | Daughter | Librarian | Illinois |
| 9 | Bessie Denton | 49 | Housekeeper | Housekeeper | Illinois |
| 10 | Helen Pietrowicz | 29 | Daughter | Librarian | Illinois |
| 11 | Grace Koerper | 19 | Lodger | Stenographer | Illinois |
| 12 | Allen Grant | 21 | Son | — | West Virginia |
| 13 | Ira Holstein | 73 | Head | — | Illinois |
| 14 | Sarah Holstein | 70 | Wife | — | Missouri |
| 15 | Grayce Corcoran | 32 | Lodger | Stenographer | Illinois |
| 16 | Thomas Ellis | 25 | Houseman | Houseman | Illinois |
| 17 | Bernard Headstrom | 57 | Head | Owner | Sweden |
| 18 | Sabina Headstrom | 58 | Wife | — | Illinois |
| 19 | Frances Headstrom | 32 | Daughter | Secretary | Illinois |
| 20 | Mildred Headstrom | 31 | Daughter | Comptometer Operator | Illinois |
| 21 | Irving Headstrom | 22 | Son | Chiropodist | Illinois |
| 22 | Josephina Bjorson | 65 | Head | — | Indiana |
| 23 | Ruth Jones | 45 | Daughter | — | Illinois |
| 24 | James P. Jones | 45 | Son-in-law | Manager | Illinois |
| 25 | Theresa Bertrams | 70 | Head | — | Germany |
| 26 | Elsie Bertrams | 30 | Daughter | Designer | Illinois |
| 27 | Clinton Kendall | 56 | Head | Buyer | Illinois |
| 28 | Mary R. Kendall | 52 | Wife | — | Illinois |
| 29 | Frances Kendall | 20 | Daughter | — | Illinois |
| 30 | Oliver J. Kendall | 19 | Son | — | Illinois |
| 31 | Fred Greenberg | 35 | Head | Buyer | Illinois |
| 32 | Mary E. Greenberg | 37 | Wife | — | Massachusetts |
| 33 | Alan Greenberg | 12 | Son | — | Chicago |
| 34 | Robert Greenberg | 7 | Son | — | Illinois |
| 35 | Jean Ptraashy | 38 | Servant | Maid | Hungary |
| 36 | Margaret Laverrorio | 68 | Head | — | Ohio |
| 37 | John Laverrorio | 48 | Son | Partner | Illinois |
| 38 | Leonard Laverrorio | 32 | Son | Salesman | Illinois |
| 39 | Nellie Gleverina | 30 | Servant | Maid | Illinois |
| 40 | Louise Mazza | 60 | Head | — | 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)