MK
Mary Kelley — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Kelley across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1858), then head of a 4-person household.
Age 62
b. ~1858
Female
Spouse
Born: Iowa
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Cook, Illinois |
| Surname | Kelley |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Metal Polisher |
| Industry | Electric Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Metal Polisher |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1858 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Kelley | Daughter | — | 23 | ~1897 |
| Edward Kelley | Head | — | 59 | ~1861 |
| Edward Kelley | Son | — | 29 | ~1891 |
| Mary Kelley | Spouse | — | 62 | ~1858 |
Census Appearances
1920
Cook, Illinois
Spouse, age 62
Cook, Illinois · implied b. ~1858 — 4 household members
| Surname | Kelley |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Metal Polisher |
| Industry | Electric Goods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cook, Illinois
Other, age 72
Cook, Illinois · implied b. ~1858 — 35 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Mary |
| Relationship to Head | maid |
| Sex | F |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | maid |
| Industry | Hospital |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cook-County, Illinois
Other, age 80
Cook-County, Illinois · implied b. ~1860 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 80 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Kelley
Spouse · 1920 · age 62 · b. ~1858 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Cook, Illinois
Open full size
1920 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu322unit:0031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Francis Jr. Katz | 3 | Son | — | Illinois |
| 52 | Edward Singer | 40 | Head | — | Ohio |
| 53 | Mary Singer | 39 | Wife | Private | Holland |
| 54 | George Singer | 13 | Son | — | Illinois |
| 55 | Edward Jr. Singer | 11 | Son | — | Illinois |
| 56 | Oliver Singer | 9 | Son | — | Illinois |
| 57 | Mary Singer | 7 | Daughter | — | Illinois |
| 58 | Virginia Singer | 5 | Daughter | — | Illinois |
| 59 | Odis Hedberg | 56 | Head | — | Wisconsin |
| 60 | Bernice Hedberg | 18 | Daughter | Pantry Work | Wisconsin |
| 61 | Ruth Hedberg | 15 | Daughter | Stenographer | Wisconsin |
| 62 | Nellie Sullivan | 36 | Head | Errand Boy | Ireland |
| 63 | Nellie Cormick | 47 | Boarder | Matron | Ireland |
| 64 | Edward Mcbride | 41 | Head | — | Ireland |
| 65 | Mary Mcbride | 36 | Wife | Laborer | Ireland |
| 66 | Patrick Mcbride | 14 | Son | — | Illinois |
| 67 | Edward Jr. Mcbride | 12 | Son | — | Illinois |
| 68 | Richard Mcbride | 9 | Son | — | Illinois |
| 69 | Mary Mcbride | 7 | Daughter | — | Illinois |
| 70 | Catherine Mcbride | 5 | Daughter | — | Illinois |
| 71 | Julia Mcbride | 4 | Daughter | — | Illinois |
| 72 | James Mcbride | 1 | Son | — | Illinois |
| 73 | Edward Kelley | 59 | Head | — | Ohio |
| 74 | Mary E. Kelley THIS PERSON | 62 | Wife | Metal Polisher | Iowa |
| 75 | Edward Jr. Kelley | 29 | Son | — | Illinois |
| 76 | Agnes Kelley | 23 | Daughter | Chauffeur | Illinois |
| 77 | Joseph Kronberg | 37 | Head | Operator | Hungary |
| 78 | Gisela Kronberg | 38 | Wife | Wood Worker | Hungary |
| 79 | Theresa Kronberg | 7 | Daughter | — | Illinois |
| 80 | Harold Kronberg | 5 | Son | — | Illinois |
| 81 | Edward Kronberg | 4 | Son | — | Illinois |
| 82 | Mike Shetzky | 34 | Head | — | Hungary |
| 83 | Theresa Shetzky | 34 | Wife | Barber | Hungary |
| 84 | Joseph S. Shetzky | 42 | Head | — | Illinois |
| 85 | Lillian Shetzky | 36 | Wife | Clerk | Illinois |
| 86 | Edna Shetzky | 16 | Daughter | — | Illinois |
| 87 | August Shetzky | 13 | Son | Recorder | Illinois |
| 88 | Mildred Shetzky | 4 | Daughter | — | Illinois |
| 89 | Louis Shetzky | 2 | Son | — | Illinois |
| 90 | Johanna Cantwell | 53 | Head | — | Illinois |
| 91 | William M. Cantwell | 28 | Son | — | Illinois |
| 92 | James E. Cantwell | 25 | Son | Repair Shoes | Illinois |
| 93 | Walter G. Cantwell | 19 | Son | Laborer | Illinois |
| 94 | Marie B. Cantwell | 16 | Daughter | Clerk | Illinois |
| 95 | Irene B. Cantwell | 13 | Daughter | — | Illinois |
| 96 | Bernice M. Cantwell | 9 | Daughter | — | Illinois |
| 97 | Irene E. Mayer | 32 | Daughter | — | Illinois |
| 98 | Marie G. Mayer | 12 | Daughter | — | Illinois |
| 99 | Thomas Mackin | 62 | Head | — | Ohio |
| 100 | Ada Mackin | 37 | Daughter | — | Ohio |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)