MK
Mary Kerr — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 8-person household.
Age 53
b. ~1877
Female
Head
Born: Denmark
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 18 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 50.00 |
| Radio Set | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1877 |
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 |
|---|---|---|---|---|
| Margaret Kerr | Daughter | — | 16 | ~1914 |
| Harry Bushman | Son | — | 25 | ~1905 |
| Arthur Bushman | Son | — | 24 | ~1906 |
| Mary Blocker | Other | — | 76 | ~1854 |
| Agnes Bushman | Other | — | 24 | ~1906 |
| John Kerr | Son | — | 18 | ~1912 |
| Mary Kerr | Head | — | 53 | ~1877 |
| Joseph Traffick | Other | — | 45 | ~1885 |
Census Appearances
1930
Cook, Illinois
Head, age 53
Cook, Illinois · implied b. ~1877 — 8 household members
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1881 |
| Age at First Marriage | 18 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Home Value / Rent | 50.00 |
| Radio Set | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Cook-County, Illinois
Daughter, age 62
Cook-County, Illinois · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Denmark |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Head · 1930 · age 53 · b. ~1877 · Illinois
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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:illinoiscensus00reel432:0433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vincent Lombardi | 42 | Head | Butcher | Italy |
| 2 | Fortunata Lombardi | 40 | Wife | None | Italy |
| 3 | Enrico Lombardi | 16 | Son | None | Illinois |
| 4 | Adeline Lombardi | 15 | Daughter | None | Illinois |
| 5 | Dorothy Lombardi | 11 | Daughter | None | Illinois |
| 6 | Romano Lombardi | 2 | Son | None | Illinois |
| 7 | Mary Kerr THIS PERSON | 53 | Head | None | Denmark |
| 8 | Harry Bushman | 25 | Son | Truck Driver | Illinois |
| 9 | Arthur Bushman | 24 | Son | Delivery Boy | Illinois |
| 10 | John Kerr | 18 | Son | Cooking Assistant | Illinois |
| 11 | Margaret Kerr | 16 | Daughter | None | Illinois |
| 12 | Mary Blocker | 76 | Mother | None | Denmark |
| 13 | Agnes Bushman | 24 | Daughter-in-law | Folder | Illinois |
| 14 | Joseph Traffick | 45 | Roomer | Utility Man | Poland |
| 15 | Charles Naloti | 36 | Head | Core Maker | Italy |
| 16 | Catherine Naloti | 34 | Wife | None | Italy |
| 17 | Rose M. Naloti | 12 | Daughter | None | Wisconsin |
| 18 | Roland Naloti | 4 | Son | None | Wisconsin |
| 19 | Selma Budborg | 54 | Head | None | Sweden |
| 20 | Adolph Budborg | 33 | Son | Retail Clerk | Illinois |
| 21 | Edith Budborg | 28 | Daughter | Stenographer | Illinois |
| 22 | Leslie Budborg | 14 | Adopted son | None | Illinois |
| 23 | Pietro Andreoni | 32 | Head | Marble Worker | Italy |
| 24 | Anna Andreoni | 21 | Wife | None | California |
| 25 | Fionora Andreoni | 9 | Daughter | None | California |
| 26 | Carry Andreoni | 24 | Sister-in-law | None | California |
| 27 | Harry Moshannon | 32 | Roomer | Chauffeur | Italy |
| 28 | Paul Maaser | 45 | Head | Boiler Maker | Italy |
| 29 | Mary Maaser | 46 | Wife | None | Italy |
| 30 | Eugenie Maaser | 20 | Son | Car Clerk | Italy |
| 31 | Lina Maaser | 18 | Daughter | Sorter | Illinois |
| 32 | Tosca G. Maaser | 14 | Daughter | None | Illinois |
| 33 | David Rosner | 53 | Head | News Boy | Czechoslovakia |
| 34 | Paulina Rosner | 49 | Wife | None | Austria-Hungary |
| 35 | Serena Rosner | 21 | Daughter | None | Austria-Hungary |
| 36 | Alex Rosner | 18 | Son | None | Austria-Hungary |
| 37 | Dominic Tuba | 42 | Head | Fireman | Italy |
| 38 | Mary Tuba | 33 | Wife | None | Italy |
| 39 | Louise Tuba | 15 | Daughter | None | Illinois |
| 40 | Frank Tuba | 13 | Son | None | Illinois |
| 41 | Rose Tuba | 12 | Daughter | None | Illinois |
| 42 | Alfred Tuba | 11 | Son | None | Illinois |
| 43 | Charles Tuba | 9 | Son | None | Illinois |
| 44 | James Tuba | 6 | Son | None | Illinois |
| 45 | Andrew Douratas | 44 | Head | Janitor | Greece |
| 46 | Katherine Douratas | 34 | Wife | None | Greece |
| 47 | Leo A. Douratas | 11 | Son | None | Illinois |
| 48 | Frank O'Grady | 36 | Head | Machinist | New York |
| 49 | Clara O'Grady | 30 | Wife | None | Illinois |
| 50 | Winifred O'Grady | 1 | Daughter | None | 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)