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John Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Sweeney across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Glencoe |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | O |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Glencoe |
| Est. Birth Year | ~1876 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Sweeney | Head | — | 64 | ~1876 |
| Edwin Sweeney | Son | — | 24 | ~1916 |
| Robert Sweeney | Son | — | 22 | ~1918 |
| Ruth Sweeney | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Cook, Illinois
Head, age 43
Cook, Illinois · implied b. ~1877 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Packer |
| Industry | General |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | kentucky |
1930
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | John S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 37 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Physician |
| Industry | General practice |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | 7,500 |
| Home Value / Rent | R |
| Veteran | O |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Cook-County, Illinois
Head, age 64
Cook-County, Illinois · implied b. ~1876 — 4 household members
| Surname | Sweeney |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Glencoe |
| 1935 Residence (County) | Cook |
| Class of Worker | O |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Sweeney 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 Sweeney
Head · 1940 · age 64 · b. ~1876 · 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-t0627-00783-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Runnefeldt | 29 | Son-in-law | Partner | Illinois |
| 42 | Sylvia Runnefeldt | 25 | Daughter | — | Denmark |
| 43 | James Runnefeldt | 1 | Grandson | — | Illinois |
| 44 | John Sweeney THIS PERSON | 64 | Head | — | Kentucky |
| 45 | Ruth Sweeney | 50 | Wife | — | Tennessee |
| 46 | Edwin C. Sweeney | 24 | Son | — | Illinois |
| 47 | Robert T. Sweeney | 22 | Son | — | Illinois |
| 48 | Francis W. Holbrook | 31 | Head | Engineer | Illinois |
| 49 | Katherine Holbrook | 29 | Wife | — | Illinois |
| 50 | Albert C. Hibbinger | 53 | Head | Contractor | Austria |
| 51 | Minnie Hibbinger | 43 | Wife | — | Illinois |
| 52 | Katherine Hibbinger | 22 | Daughter | Receptionist | Illinois |
| 53 | Gilbert H. Marshall | 30 | Son-in-law | Salesman | Illinois |
| 54 | Alice Marshall | 27 | Daughter | — | Illinois |
| 55 | Ann Marshall | 0 | Granddaughter | — | Illinois |
| 56 | Henry C. Schroeder | 68 | Head | Caretaker | Illinois |
| 57 | Caroline Schroeder | 68 | Wife | — | Germany |
| 58 | Frank Augustus | 45 | Lodger | Chauffeur | Belgium |
| 59 | Jean Bookless | 41 | Head | — | Pennsylvania |
| 60 | Archie Bookless | 15 | Son | Delivery Boy | Scotland |
| 61 | Clement Duhin | 28 | Head | Fireman | Wisconsin |
| 62 | Hazel Duhin | 25 | Wife | House Maid | Indiana |
| 63 | Raymond Moore | 26 | Brother-in-law | Gardner | Indiana |
| 64 | Fred Grooms | 22 | Head | Senior Clerk | Iowa |
| 65 | Dorothy Grooms | 22 | Wife | — | Illinois |
| 66 | James Mitchell | 22 | Lodger | Clerk | Illinois |
| 67 | Amanda Colver | 62 | Head | — | Illinois |
| 68 | Charles Fron | 29 | Head | Clerk | Pennsylvania |
| 69 | Mathilda Fron | 30 | Wife | — | Pennsylvania |
| 70 | Carol J. Fron | 2 | Daughter | — | Illinois |
| 71 | Donald Froberg | 23 | Head | Driver | Michigan |
| 72 | Virginia Froberg | 21 | Wife | Clerk | Wisconsin |
| 73 | Alex Metsick | 32 | Lodger | Mail Carrier | Illinois |
| 74 | Arthur Pearson | 52 | Lodger | Gardner | Sweden |
| 75 | Ruby Lowe | 39 | Head | Cook | Illinois |
| 76 | Sonia Lowe | 21 | Sister | Waitress | Illinois |
| 77 | Basil Andrews | 22 | Lodger | Accountant | Illinois |
| 78 | Wilsey | 26 | Lodger | Asst. Office Clerk | Illinois |
| 79 | Frank Campion | 64 | Lodger | Gardner | Minnesota |
| 80 | Frank Steiner | 38 | Lodger | Gardner | Germany |
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)