MK
Mary Kenny — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Kenny across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 4
b. ~1926
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Kenny |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | City Of Chicago |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joanne Kenny | Daughter | — | ~1930 | |
| Arthur Kenny | Son | — | 6 | ~1924 |
| Donald Kenny | Son | — | 2 | ~1928 |
| Mary Kenny | Daughter | — | 4 | ~1926 |
| Thomas Kenny | Head | — | 33 | ~1897 |
| Anna Kenny | Spouse | — | 28 | ~1902 |
| Jerome Kenny | Son | — | 1 | ~1929 |
Census Appearances
1930
Cook, Illinois
Daughter, age 4
Cook, Illinois · implied b. ~1926 — 7 household members
| Surname | Kenny |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 14
Cook-County, Illinois · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kenney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago - City |
| 1935 Residence (County) | Cook |
| Highest Grade | S 8 |
| 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 Kenny across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kenny
Daughter · 1930 · age 4 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
Joanne Kenny
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Kenny
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Kenny
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Kenny
Sibling · 1930 · age 1
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:illinoiscensus00reel439:0125)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Kenny | 33 | Head | Stationary Engineer | Illinois |
| 2 | Anna Kenny | 28 | Wife | — | Illinois |
| 3 | Arthur Kenny | 6 | Son | — | Illinois |
| 4 | Mary Kenny THIS PERSON | 4 | Daughter | — | Illinois |
| 5 | Donald Kenny | 2 | Son | — | Illinois |
| 6 | Jerome Kenny | 1 | Son | — | Illinois |
| 7 | Joanne Kenny | 0 | Daughter | — | Illinois |
| 8 | John Jacobus | 48 | Head | Butcher | Illinois |
| 9 | Anna Jacobus | 50 | Wife | — | Germany |
| 10 | Henry Rumpf | 36 | Head | Photographer | Austria |
| 11 | Anna Rumpf | 33 | Wife | — | Austria |
| 12 | Anna Rumpf | 14 | Daughter | — | Illinois |
| 13 | Clifford Rumpf | 10 | Son | — | Illinois |
| 14 | Norma Rumpf | 7 | Daughter | — | Illinois |
| 15 | June Rumpf | 5 | Daughter | — | Illinois |
| 16 | George Alquire | 70 | Head | Chauffeur | Canada E |
| 17 | Minnie Alquire | 37 | Wife | — | Illinois |
| 18 | Ernest Alquire | 29 | Brother | Repairman | Canada E |
| 19 | James Williams | 45 | Head | Superintendent | Illinois |
| 20 | Josephine Williams | 46 | Wife | — | Illinois |
| 21 | James Williams | 20 | Son | Retail Clerk | Illinois |
| 22 | Giles Williams | 15 | Son | — | Illinois |
| 23 | James Cowie | 41 | Head | Chauffeur | Illinois |
| 24 | Ida Cowie | 42 | Wife | — | Wisconsin |
| 25 | Margaret Cowie | 10 | Daughter | — | Illinois |
| 26 | James Cowie | 7 | Son | — | Illinois |
| 27 | Alma Berner | 25 | Sister-in-law | Practical Nurse | Wisconsin |
| 28 | Carl Halb | 28 | Head | Carpenter | Austria |
| 29 | Theresa Halb | 29 | Wife | — | Austria |
| 30 | Lillian Halb | 3 | Niece | — | Illinois |
| 31 | Oscar Nord | 41 | Head | Machinist | Sweden |
| 32 | Anna Nord | 35 | Wife | — | Sweden |
| 33 | William Nord | 4 | Son | — | Illinois |
| 34 | Oscar Nordquist | 22 | Boarder | Mechanic | Sweden |
| 35 | Nick Fischer | 35 | Head | Laborer | Germany |
| 36 | Lillian Fischer | 31 | Wife | — | Illinois |
| 37 | Melvin Fischer | 12 | Son | — | Illinois |
| 38 | Lester Fischer | 3 | Son | — | Illinois |
| 39 | August Hojda | 48 | Head | Teamster | Czechoslovakia |
| 40 | Joseph Hojda | 44 | Brother | Teamster | Czechoslovakia |
| 41 | Elizabeth Hojda | 31 | Sister | Checker | Illinois |
| 42 | Antoinette Hojda | 29 | Sister | Bookkeeper | Illinois |
| 43 | Mae Miller | 26 | Sister | Labeler | Illinois |
| 44 | Shirley Miller | 5 | Niece | — | Illinois |
| 45 | Robert Miller | 3 | Nephew | — | Illinois |
| 46 | Jacob Thomas | 43 | Head | Laborer | Illinois |
| 47 | Emma Thomas | 37 | Wife | — | Illinois |
| 48 | John Thomas | 19 | Son | Board Maker | Illinois |
| 49 | Edward Thomas | 16 | Son | Laborer | Illinois |
| 50 | Violet Thomas | 15 | Daughter | — | 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)