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Daniel Kelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Daniel Kelly across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kelly |
| Given Name | Daniel |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Daniel | Age | Birth yr |
|---|---|---|---|---|
| Margaret Kelly | Spouse | — | 40 | ~1900 |
| William Kelly | Son | — | 4 | ~1936 |
| Robert Kelly | Son | — | 9 | ~1931 |
| Edward Kelly | Son | — | 18 | ~1922 |
| Lucille Kelly | Daughter | — | 19 | ~1921 |
| Margaret Kelly | Daughter | — | 13 | ~1927 |
| James Kelly | Son | — | 21 | ~1919 |
| Daniel Kelly | Son | — | 11 | ~1929 |
| Daniel Kelly | Head | — | 46 | ~1894 |
| Julia Kelly | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Daniel |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 11
Cook-County, Illinois · implied b. ~1929 — 10 household members
| Surname | Kelly |
| Given Name | Daniel |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | 6 |
| 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 Daniel Kelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Daniel Kelly
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Lucille Kelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kelly
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Kelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Kelly
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Kelly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kelly
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kelly
Sibling · 1940 · age 9
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-t0627-00949-00767)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Jane Randolph | 18 | daughter | — | Missouri |
| 2 | June Randolph | 13 | daughter | — | Illinois |
| 3 | Charles Randolph | 12 | son | — | Illinois |
| 4 | Geraldine Randolph | 10 | daughter | — | Illinois |
| 5 | Gloria Randolph | 8 | daughter | — | Illinois |
| 6 | Donald Randolph | 4 | son | — | Illinois |
| 7 | Thomas Daley | 45 | Head | Laborer | Illinois |
| 8 | Catherine Daley | 45 | Wife | — | Illinois |
| 9 | Thomas Daley | 21 | son | Truck Driver | Illinois |
| 10 | Mary Daley | 21 | Daughter | Stenographer | Illinois |
| 11 | Edward Daley | 18 | son | — | Illinois |
| 12 | James Daley | 16 | son | — | Illinois |
| 13 | John Daley | 13 | son | — | Illinois |
| 14 | Daniel Kelly | 46 | Head | Asst Superintendent | Illinois |
| 15 | Margaret Kelly | 40 | Wife | — | Illinois |
| 16 | James Kelly | 21 | son | Clerk | Illinois |
| 17 | Lucille Kelly | 19 | daughter | Clerk | Illinois |
| 18 | Edward Kelly | 18 | son | New Worker | Illinois |
| 19 | Julia Kelly | 16 | daughter | — | Illinois |
| 20 | Margaret Kelly | 13 | daughter | — | Illinois |
| 21 | Daniel Kelly THIS PERSON | 11 | son | — | Illinois |
| 22 | Robert Kelly | 9 | son | — | Illinois |
| 23 | William Kelly | 4 | son | — | Illinois |
| 24 | Harry Folsom | 40 | Head | Sheet Metal Worker | Illinois |
| 25 | Helen Folsom | 42 | Wife | — | Illinois |
| 26 | Harry Folsom | 11 | son | — | Illinois |
| 27 | Elizabeth Folsom | 9 | daughter | — | Illinois |
| 28 | Edward O'Brien | 40 | Head | Auto Mechanic | Illinois |
| 29 | Gladys O'Brien | 39 | Wife | — | Illinois |
| 30 | Esther O'Brien | 17 | daughter | New Worker | Illinois |
| 31 | Edward O'Brien | 13 | son | — | Illinois |
| 32 | Shirley O'Brien | 10 | daughter | — | Illinois |
| 33 | George O'Brien | 8 | son | — | Illinois |
| 34 | Gladys O'Brien | 4 | daughter | — | Illinois |
| 35 | Charles Irwin | 76 | Father in law | — | Illinois |
| 36 | George Querr | 45 | Head | Sewing Machine Repair Man | Illinois |
| 37 | Gertrude Querr | 43 | Wife | — | Illinois |
| 38 | Mary Querr | 16 | daughter | — | Illinois |
| 39 | Robert Querr | 10 | son | — | Illinois |
| 40 | Ronald Querr | 5 | son | — | 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)