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John Regan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Regan across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 9-person household.
Age 25
b. ~1915
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Regan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Candy factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1060 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Maywood Village |
| Est. Birth Year | ~1915 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Regan | Son | — | 25 | ~1915 |
| George Regan | Son | — | 14 | ~1926 |
| Daniel Regan | Son | — | 6 | ~1934 |
| Gary Regan | Other | — | ~1940 | |
| Joseph Regan | Head | — | 52 | ~1888 |
| Arthur Regan | Son | — | 19 | ~1921 |
| Margaret Regan | Spouse | — | 50 | ~1890 |
| Lucille Regan | Daughter | — | 19 | ~1921 |
| James Regan | Son | — | 28 | ~1912 |
Census Appearances
1930
Cook, Illinois
Son, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Regan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 25
Cook-County, Illinois · implied b. ~1915 — 9 household members
| Surname | Regan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood village |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Candy factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1060 |
| Highest Grade | Hs 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 Regan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Regan
Son · 1940 · age 25 · b. ~1915 · Illinois
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Sibling
George Regan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Regan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Regan
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Regan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Regan
Sibling · 1940 · age 6
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-t0627-00787-00789)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edythe Robertson | 45 | Wife | No | Illinois |
| 42 | Leroy Smith | 41 | Head | Fireman | Illinois |
| 43 | Esther Smith | 38 | Wife | No | Wisconsin |
| 44 | Dolores Smith | 13 | Daughter | — | Illinois |
| 45 | Robert L. Campbell | 46 | Head | Railway Mail Clerk | Missouri |
| 46 | Iura Campbell | 35 | Wife | No | Iowa |
| 47 | Dorothy Campbell | 17 | Daughter | — | Kansas |
| 48 | Virginia Campbell | 15 | Daughter | — | Illinois |
| 49 | Iura Campbell | 7 | Daughter | — | Iowa |
| 50 | Joseph Regan | 52 | Head | Pipe Fitter | Illinois |
| 51 | Margaret Regan | 50 | Wife | No | Illinois |
| 52 | James Regan | 28 | Son | Laundry Driver | Illinois |
| 53 | Arthur Regan | 19 | Son | No | Illinois |
| 54 | George Regan | 14 | Son | No | Illinois |
| 55 | Daniel Regan | 6 | Son | — | Illinois |
| 56 | John Regan THIS PERSON | 25 | Son | Laborer | Illinois |
| 57 | Lucille Regan | 19 | Daughter | No | Illinois |
| 58 | Gary Regan | 0 | Grandson | — | Illinois |
| 59 | Walter C. Weymann | 55 | Head | Sales Manager | Illinois |
| 60 | Emma F. Weymann | 52 | Wife | No | Illinois |
| 61 | Robert Thompson | 54 | Head | Watchman | Scotland |
| 62 | Grace Thompson | 51 | Wife | No | Scotland |
| 63 | George Thompson | 29 | Son | Repair Mechanic | Scotland |
| 64 | Stewart Thompson | 22 | Son | Office Clerk | Scotland |
| 65 | Kenneth Thompson | 12 | Son | — | Illinois |
| 66 | Fred Dolle | 46 | Head | Carpenter | Texas |
| 67 | Verna Dolle | 45 | Wife | No | Wisconsin |
| 68 | William Dolle | 15 | Son | — | Illinois |
| 69 | John Dolle | 9 | Son | — | Illinois |
| 70 | Lester Wilson | 58 | Head | Salesman | Michigan |
| 71 | Ethel Wilson | 51 | Wife | No | Illinois |
| 72 | Charles Skopnik | 51 | Head | Barber | France |
| 73 | Elisa Skopnik | 46 | Wife | No | France |
| 74 | Charlotte Skopnik | 21 | Daughter | Bookkeeper | Illinois |
| 75 | Herman Boss | 53 | Head | Painter | Holland |
| 76 | Gertrude Boss | 49 | Wife | No | Illinois |
| 77 | Gertrude Boss | 19 | Daughter | No | Illinois |
| 78 | Elmer Felmer | 47 | Head | Machine Hand | Illinois |
| 79 | Mary Felmer | 47 | Wife | No | Illinois |
| 80 | John H. Collins | 60 | Head | Collector | Ohio |
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)