RK
Rose Kelly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Rose Kelly across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kelly |
| Given Name | Rose Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1923 |
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 Rose | Age | Birth yr |
|---|---|---|---|---|
| Donald Kelly | Son | — | 12 | ~1928 |
| Thomas Kelly | Son | — | 19 | ~1921 |
| Nellie Kelly | Head | — | 45 | ~1895 |
| Rose Kelly | Daughter | — | 17 | ~1923 |
| John Kelly | Son | — | 21 | ~1919 |
| William Kelly | Son | — | 20 | ~1920 |
Census Appearances
1930
Cook, Illinois
Daughter, age 7
Cook, Illinois · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Rose Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 17
Cook-County, Illinois · implied b. ~1923 — 6 household members
| Surname | Kelly |
| Given Name | Rose Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 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 Rose Kelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Rose Kelly
Daughter · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
John Kelly
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Kelly
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kelly
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Kelly
Sibling · 1940 · age 19
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-t0627-00953-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nellie Kelly | 45 | Head | — | Irish Free State |
| 42 | John Kelly | 21 | Son | Office Clerk | Illinois |
| 43 | William Kelly | 20 | Son | Shipping Clerk | Illinois |
| 44 | Thomas Kelly | 19 | Son | Messenger | Illinois |
| 45 | Rose Mary Kelly THIS PERSON | 17 | daughter | — | Illinois |
| 46 | Donald Kelly | 12 | son | — | Illinois |
| 47 | Edward Smith | 74 | Head | — | Irish Free State |
| 48 | Mary Smith | 60 | Wife | — | Irish Free State |
| 49 | James Armstrong | 63 | Head | Fac. Maint. | Irish Free State |
| 50 | Anna Armstrong | 60 | Wife | — | Irish Free State |
| 51 | James Armstrong | 28 | Son | — | Illinois |
| 52 | Margaret Armstrong | 26 | daughter | Tel. Operator | Illinois |
| 53 | John Armstrong | 25 | Son | Laborer | Illinois |
| 54 | Thomas Parker | 82 | Head | — | English Canada |
| 55 | Anna Parker | 70 | Wife | — | Irish Free State |
| 56 | Peter Begley | 68 | Head | — | New York |
| 57 | Anastatia Begley | 67 | Wife | — | Illinois |
| 58 | Caroline Nelson | 72 | Head | — | Sweden |
| 59 | Anna Nelson | 38 | daughter | Nurse | Illinois |
| 60 | Arthur Lundmark | 37 | Boarder | Salesman | Illinois |
| 61 | Catherine Deneen | 53 | Head | Cook | Irish Free State |
| 62 | Helen Deneen | 25 | daughter | — | Illinois |
| 63 | Kenneth Smith | 32 | Head | Machinist | Iowa |
| 64 | Irene Smith | 27 | Wife | — | Illinois |
| 65 | John Smith | 6 | Son | — | Illinois |
| 66 | George Haseman | 54 | brother in law | Loco. Engineer | Illinois |
| 67 | Ada Haseman | 52 | sister in law | — | Illinois |
| 68 | Raymond Haseman | 21 | brother in law | Factory Worker | Illinois |
| 69 | Margaret Fitzsimmons | 68 | Head | — | Illinois |
| 70 | Bell Fitzsimmons | 34 | daughter | Case Worker | Illinois |
| 71 | William Fitzsimmons | 14 | Grandson | — | Illinois |
| 72 | Fred Koch | 44 | Head | Chauffeur | Illinois |
| 73 | Anna Koch | 42 | Wife | — | Illinois |
| 74 | Evelyn Koch | 21 | daughter | Factory Worker | Illinois |
| 75 | Lillian Koch | 19 | daughter | Order Clerk | Illinois |
| 76 | Anna Koch | 17 | daughter | — | Illinois |
| 77 | La Verne Koch | 13 | daughter | — | Illinois |
| 78 | Edward O'Brien | 39 | Head | Laborer | Illinois |
| 79 | Stella O'Brien | 32 | Wife | — | Illinois |
| 80 | James O'Brien | 16 | 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)