MK
Mary Kenney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Kenney across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 8-person household.
Age 15
b. ~1915
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Kenney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1915 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| William Kenney | Son | — | 22 | ~1908 |
| John Kenney | Son | — | 17 | ~1913 |
| James Kenney | Son | — | 10 | ~1920 |
| Anna Kenney | Daughter | — | 12 | ~1918 |
| Mary Kenney | Daughter | — | 15 | ~1915 |
| Eileen Kenney | Daughter | — | 8 | ~1922 |
| Catherine Kenney | Daughter | — | 18 | ~1912 |
| Katie Kenney | Head | — | 52 | ~1878 |
Census Appearances
1930
Cook, Illinois
Daughter, age 15
Cook, Illinois · implied b. ~1915 — 8 household members
| Surname | Kenney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 24
Cook-County, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kenny |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Filing Clerk |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 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 Mary Kenney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kenney
Daughter · 1930 · age 15 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
James Kenney
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Kenney
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Kenney
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Kenney
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kenney
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Kenney
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:illinoiscensus00reel436:0212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Reynolds | 57 | Head | — | Illinois |
| 2 | Florence Reynolds | 23 | Daughter | Saleslady | Illinois |
| 3 | Lois Reynolds | 14 | Daughter | — | Illinois |
| 4 | Carl Tuman | 57 | Head | — | Germany |
| 5 | Anna Tuman | 51 | Wife | — | Germany |
| 6 | Gustaf Lundquist | 33 | Head | Paper Hanger | Sweden |
| 7 | Bernice Lundquist | 33 | Wife | — | South Dakota |
| 8 | Burnet Lundquist | 12 | Daughter | — | Illinois |
| 9 | William Lundquist | 10 | Son | — | Illinois |
| 10 | Dorothy Lundquist | 8 | Daughter | — | Illinois |
| 11 | Betty Lundquist | 5 | Daughter | — | Illinois |
| 12 | Bert Clark | 24 | Head | Machinist | Kentucky |
| 13 | Edna Clark | 24 | Wife | — | Kentucky |
| 14 | John T. Clark | 6 | Son | — | Missouri |
| 15 | Anna Clark | 5 | Daughter | — | Illinois |
| 16 | Bert Clark | 3 | Son | — | Illinois |
| 17 | Helen Clark | 1 | Daughter | — | Illinois |
| 18 | Mary Mcnamara | 60 | Head | — | Free States |
| 19 | Timothy Mcnamara | 21 | Son | — | Illinois |
| 20 | Katie Kenney | 52 | Head | — | Illinois |
| 21 | William Kenney | 22 | Son | — | Illinois |
| 22 | Catherine Kenney | 18 | Daughter | — | Illinois |
| 23 | John Kenney | 17 | Son | — | Illinois |
| 24 | Mary Kenney THIS PERSON | 15 | Daughter | — | Illinois |
| 25 | Anna Kenney | 12 | Daughter | — | Illinois |
| 26 | James Kenney | 10 | Son | — | Illinois |
| 27 | Eileen Kenney | 8 | Daughter | — | Illinois |
| 28 | Walter King | 52 | Head | — | Illinois |
| 29 | Georgia King | 51 | Wife | — | Illinois |
| 30 | Joseph King | 24 | Son | — | Illinois |
| 31 | James King | 21 | Son | Chauffeur | Illinois |
| 32 | Catherine King | 19 | Daughter | — | Illinois |
| 33 | John King | 17 | Son | — | Illinois |
| 34 | Alice King | 15 | Daughter | — | Illinois |
| 35 | Frank King | 13 | Son | — | Illinois |
| 36 | Edward King | 11 | Son | — | Illinois |
| 37 | Marion King | 8 | Daughter | — | Illinois |
| 38 | John Cassidy | 44 | Head | — | Pennsylvania |
| 39 | Bessie Cassidy | 43 | Wife | — | Illinois |
| 40 | Joe Gavin | 34 | Head | Machinist | Indiana |
| 41 | Eva Gavin | 33 | Wife | — | Kentucky |
| 42 | Lelia Thomas | 15 | Daughter | — | Kentucky |
| 43 | Louise Thomas | 13 | Daughter | — | Illinois |
| 44 | Benjamin Kocsoy | 42 | Head | Foreman | Hungary |
| 45 | Julia Kocsoy | 37 | Wife | — | Hungary |
| 46 | James Kocsoy | 17 | Son | Laborer | Ohio |
| 47 | Joseph Kocsoy | 16 | Son | — | Ohio |
| 48 | Edward Kocsoy | 14 | Son | — | Ohio |
| 49 | Barbara Luso | 64 | Mother-in-law | — | Hungary |
| 50 | Nephew Thomas | 14 | Nephew | — | Illinois |
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)