FK
Frank Kelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Kelly across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Mike & Miles — first a son (b.~1902), then head of a 7-person household.
Age 38
b. ~1902
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kelly |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Summit |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Corn Refining |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1900 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Summit |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Geraldine Kelly | Daughter | — | 19 | ~1921 |
| Helen Kelly | Daughter | — | 22 | ~1918 |
| Mary Kelly | Head | — | 54 | ~1886 |
| Frank Kelly | Son | — | 38 | ~1902 |
| Edward Kelly | Son | — | 24 | ~1916 |
| Michael Kelly | Son | — | 41 | ~1899 |
| Robert Kelly | Son | — | 17 | ~1923 |
Census Appearances
1920
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Starch Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 28
Cook, Illinois · implied b. ~1902 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | No |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Corn refinery |
| 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 — 7 household members
| Surname | Kelly |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Summit |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Corn Refining |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1900 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| 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 Frank Kelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mike Kelly (~0.92 confidence) and father Miles Kelly (~0.92 confidence) and mother Mary Kelly (~0.92 confidence) and mother Mary Kelly (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mike Kelly
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Miles Kelly
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Kelly
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mary Kelly
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Kelly
Son · 1940 · age 38 · b. ~1902 · Illinois
★ You are viewing this record
Sibling
Robert Kelly
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Kelly
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Kelly
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Kelly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Kelly
Sibling · 1940 · age 41
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-t0627-00782-00359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wife Bessie | None | F | — | — |
| 2 | Daughter Beatrice | None | F | Hospital | — |
| 3 | Daughter Sharon | None | F | — | — |
| 4 | Ross Hagler | 47 | Head | Press-Man | Tennessee |
| 5 | Louie Hagler | 50 | Wife | — | Tennessee |
| 6 | George Hagler | 22 | Son | Tool-Checker | Tennessee |
| 7 | Opal Hagler | 17 | Daughter | — | Tennessee |
| 8 | Mary Hagler | 53 | Mother | — | Tennessee |
| 9 | Anthony Lutera | 27 | Head | Laborer | Illinois |
| 10 | Santa Lutera | 20 | Wife | — | Illinois |
| 11 | Raymond Lutera | 2 | Son | — | Illinois |
| 12 | Gloria Lutera | 0 | Daughter | — | Illinois |
| 13 | Giuseppe Comparato | 49 | Head | Laborer | Italy |
| 14 | Thomas Woodard | 73 | Head | — | Missouri |
| 15 | Martha Woodard | 73 | Wife | — | Missouri |
| 16 | George Woodard | 38 | Son | Switch-Man | Missouri |
| 17 | Mary Kelly | 54 | Head | — | Iowa |
| 18 | Michael Kelly | 41 | Son | Laborer | Illinois |
| 19 | Frank Kelly THIS PERSON | 38 | Son | Laborer | Illinois |
| 20 | Edward Kelly | 24 | Son | Iron Worker | Illinois |
| 21 | Helen Kelly | 22 | Daughter | Laborer | Illinois |
| 22 | Geraldine Kelly | 19 | Daughter | Laborer | Illinois |
| 23 | Robert Kelly | 17 | Son | — | Illinois |
| 24 | Frank Swartz | 55 | Head | Laborer | Czecho-Slovakia |
| 25 | Rose Swartz | 59 | Wife | — | Czecho-Slovakia |
| 26 | John Swartz | 27 | Son | Punch Press | New Jersey |
| 27 | Viola Swartz | 20 | Daughter-in-law | — | Illinois |
| 28 | Mary Lee Swartz | 0 | Grand-daughter | — | Illinois |
| 29 | Dave Cook (Kujko) | 49 | Head | Laborer | Poland |
| 30 | Lucille Cook (Kujko) | 48 | Wife | — | Illinois |
| 31 | Irene Cook (Kujko) | 18 | Daughter | Office Clerk | Illinois |
| 32 | Vivian Cook (Kujko) | 6 | Daughter | — | Illinois |
| 33 | — | 85 | Mother-in-law | — | Poland |
| 34 | Peter J. Blondfield | 62 | Head | Pan-Man | Illinois |
| 35 | Jessie Blondfield | 55 | Wife | — | Illinois |
| 36 | Walter Ozegkowski | 58 | Head | Laborer | Poland |
| 37 | Anna Ozegkowski | 51 | Wife | — | Poland |
| 38 | Mamie Ozegkowski | 30 | Daughter | Laborer | Illinois |
| 39 | Bernadine Ozegkowski | 15 | Daughter | — | Illinois |
| 40 | William | 29 | Son | Laborer | Illinois |
Pedigree Summary
Frank + 5 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)