MK
Mary Kearney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Kearney across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 13-person household.
Age 12
b. ~1918
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Kearney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1918 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Kearney | Son | — | 11 | ~1919 |
| Paul Kearney | Son | — | 15 | ~1915 |
| Richard Kearney | Son | — | 17 | ~1913 |
| John Kearney | Son | — | 9 | ~1921 |
| Anna Kearney | Other | — | 46 | ~1884 |
| Kathryn Kearney | Daughter | — | 2 | ~1928 |
| Grace Kearney | Daughter | — | 22 | ~1908 |
| Richard Kearney | Head | — | 64 | ~1866 |
| Frances Kearney | Daughter | — | 19 | ~1911 |
| Mary Kearney | Daughter | — | 12 | ~1918 |
| Patricia Kearney | Daughter | — | 8 | ~1922 |
| James Kearney | Son | — | 7 | ~1923 |
| Ann Kearney | Daughter | — | 23 | ~1907 |
Census Appearances
1930
Cook, Illinois
Daughter, age 12
Cook, Illinois · implied b. ~1918 — 13 household members
| Surname | Kearney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 23
Cook-County, Illinois · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | Filing |
| Industry | Mail order house |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 160 |
| 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 Mary Kearney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kearney
Daughter · 1930 · age 12 · b. ~1918 · Illinois
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Sibling
Paul Kearney
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kearney
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kearney
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Kearney
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Kearney
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kearney
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Kearney
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Kearney
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Kearney
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Kearney
Sibling · 1930 · age 8
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
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel446:1052)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nora Moynihan | 65 | Head | — | Irish Free State |
| 2 | Mary Moynihan | 41 | Daughter | — | Illinois |
| 3 | Martha Moynihan | 37 | Daughter | — | Illinois |
| 4 | Richard Kearney | 64 | Head | Bookkeeper | Irish Free State |
| 5 | Anna Kearney | 46 | Wife-H | — | Illinois |
| 6 | Ann Kearney | 23 | Daughter | Teacher | Illinois |
| 7 | Grace Kearney | 22 | Daughter | Superintendent | Illinois |
| 8 | Frances Kearney | 19 | Daughter | Operator | Illinois |
| 9 | Richard Kearney | 17 | Son | — | Illinois |
| 10 | Paul Kearney | 15 | Son | — | Illinois |
| 11 | Mary Kearney THIS PERSON | 12 | Daughter | — | Illinois |
| 12 | Robert Kearney | 11 | Son | — | Illinois |
| 13 | John Kearney | 9 | Son | — | Illinois |
| 14 | Patricia Kearney | 8 | Daughter | — | Illinois |
| 15 | James Kearney | 7 | Son | — | Illinois |
| 16 | Kathryn M. Kearney | 2 | Daughter | — | Illinois |
| 17 | Joseph Mccormick | 34 | Head | Clerk | Illinois |
| 18 | Margaret Mccormick | 31 | Wife-H | — | Illinois |
| 19 | Joan Mccormick | 3 | Daughter | — | Illinois |
| 20 | Owen Davern | 34 | Head | Clerk | Illinois |
| 21 | Irene Davern | 33 | Wife-H | — | Illinois |
| 22 | Owen Davern | 2 | Son | — | Illinois |
| 23 | William Crawford | 29 | Head | Typist | Indiana |
| 24 | Rose Crawford | 30 | Wife-H | — | Indiana |
| 25 | Robert Crawford | 0 | Son | — | Illinois |
| 26 | Lorraine Crawford | 3 | Daughter | — | Illinois |
| 27 | Harry Blandin | 24 | Head | Salesman | Illinois |
| 28 | Evelyn Blandin | 23 | Wife-H | — | Illinois |
| 29 | Wanda Blandin | 2 | Daughter | — | Illinois |
| 30 | Harry Jr. Blandin | 0 | Son | — | Illinois |
| 31 | Alice Blandin | 49 | Mother | Saleswoman | Missouri |
| 32 | John Manney | 41 | Head | Policeman | Irish Free State |
| 33 | Catherine Manney | 41 | Wife-H | — | Irish Free State |
| 34 | Catherine E. Kerins | 15 | Daughter | — | Illinois |
| 35 | Charles Kerins | 12 | Son | — | Illinois |
| 36 | Rita M. Kerins | 11 | Daughter | — | Illinois |
| 37 | Patrick O'Malley | 49 | Head | Janitor | Irish Free State |
| 38 | Marie O'Malley | 47 | Wife-H | — | Irish Free State |
| 39 | William O'Malley | 21 | Son | Clerk | Illinois |
| 40 | Mary O'Malley | 20 | Daughter | Comptometer | Illinois |
| 41 | Annie O'Malley | 18 | Daughter | Stenographer | Illinois |
| 42 | Anthony O'Malley | 15 | Son | — | Illinois |
| 43 | Patrick Jr. O'Malley | 13 | Son | — | Illinois |
| 44 | Stephen Ritchie | 57 | Head | Watchman | Pennsylvania |
| 45 | Elizabeth Ritchie | 54 | Wife-H | — | Germany |
| 46 | William Edwards | 55 | Head | Clerk | Illinois |
| 47 | Eva Edwards | 54 | Wife-H | — | Sweden |
| 48 | Redmond Fenton | 65 | Head | — | Irish Free State |
| 49 | Mary Fenton | 63 | Wife-H | — | Irish Free State |
| 50 | Mary Fenton | 28 | Daughter | Teacher | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)