RK
Robert Kelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Robert Kelly across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Michael & Rose — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kelly |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Cone Corp |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 788 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Kate Kelly | Daughter | — | 15 | ~1925 |
| Anne Kelly | Daughter | — | 18 | ~1922 |
| Michael Kelly | Head | — | 62 | ~1878 |
| Robert Kelly | Son | — | 20 | ~1920 |
| Edward Kelly | Son | — | 26 | ~1914 |
| Rose Kelly | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Occupation | Student |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 20
Cook-County, Illinois · implied b. ~1920 — 6 household members
| Surname | Kelly |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Cone Corp |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 788 |
| 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 Robert Kelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Kelly (~0.92 confidence) and mother Rose Kelly (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Kelly
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Rose Kelly
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Kelly
Son · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Edward Kelly
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Kelly
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kate Kelly
Sibling · 1940 · age 15
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-t0627-00964-00568)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kate Katkiewicz | 57 | Wife | — | Lithuania |
| 42 | Alex Buchinskas | 46 | Lodger | Maid | Lithuania |
| 43 | Honore Buchinskas | 14 | Lodger | — | Illinois |
| 44 | Alex Katkiewicz | 37 | Lodger | Writer | Lithuania |
| 45 | Frank Norbus | 72 | Head | New Worker | Lithuania |
| 46 | Frank Jr Norbus | 29 | Son | Cutter | Illinois |
| 47 | John Buchis | 33 | Lodger | Laborer | Lithuania |
| 48 | Antoinette Daniunas | 52 | Head | — | Lithuania |
| 49 | Paul Daniunas | 20 | Son | Laborer | Illinois |
| 50 | Joan Daniunas | 24 | Daughter | Checker | Illinois |
| 51 | Theodore Vakies | 52 | Head | Tailor | Lithuania |
| 52 | Anna Vakies | 38 | Wife | — | Pennsylvania |
| 53 | Anita Vakies | 19 | Daughter | Typist | Illinois |
| 54 | Steve Kotarba | 24 | Head | Furniture Packer | Illinois |
| 55 | Frances Kotarba | 24 | Wife | Mail Order Clerk | Illinois |
| 56 | Elinore Matuzas | 60 | Head | — | Lithuania |
| 57 | Stella Matuzas | 30 | Daughter | Operator | Illinois |
| 58 | Albert Drager | 23 | Head | Tool & Die Appr | Illinois |
| 59 | Delores Drager | 19 | Wife | — | Illinois |
| 60 | John Bruchber | 55 | Head | Repair Man | Lithuania |
| 61 | Gertrude Bruchber | 55 | Wife | — | Lithuania |
| 62 | Michael Kelly | 62 | Head | — | Canada |
| 63 | Rose Kelly | 58 | Wife | — | Illinois |
| 64 | Edward Kelly | 26 | Son | Millwright Helper | Illinois |
| 65 | Robert Kelly THIS PERSON | 20 | Son | Laborer | Illinois |
| 66 | Anne Kelly | 18 | Daughter | New Worker | Illinois |
| 67 | Kate Kelly | 15 | Daughter | — | Illinois |
| 68 | James Lynch | 48 | Head | Manager | Illinois |
| 69 | Joe Yellina | 56 | Head | Laborer | Italy |
| 70 | Charles Yellina | 17 | Son | — | Pennsylvania |
| 71 | Yola Yellina | 15 | Daughter | — | Pennsylvania |
| 72 | Anthony Gitvan | 62 | Head | — | Lithuania |
| 73 | Angela Gitvan | 57 | Wife | — | Italy |
| 74 | Matilda Gitvan | 23 | Daughter | — | Illinois |
| 75 | Alex Mckey | 34 | Head | Motorman | Ireland |
| 76 | Harry Voelle | 37 | Head | Laborer | Illinois |
| 77 | Henrietta Voelle | 36 | Wife | — | Illinois |
| 78 | Harry Jr Voelle | 15 | Son | — | Illinois |
| 79 | Lorraine Voelle | 12 | Daughter | — | Illinois |
| 80 | Shirley Voelle | 4 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Robert + 3 siblings
Gen 1 · 2 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)