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John Kaufman — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Kaufman across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 5-person household.
Age 40
b. ~1890
Male
Head
Born: Switzerland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 32 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Additional Details | |
| Occupation | Head Houseman |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Home Value / Rent | 60 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Occupation | Head Houseman |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1890 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Kaufman | Daughter | — | 8 | ~1922 |
| Jack Kaufman | Son | — | 6 | ~1924 |
| Mary Kaufman | Spouse | — | 34 | ~1896 |
| John Kaufman | Head | — | 40 | ~1890 |
| Lorraine Kaufman | Daughter | — | 1 | ~1929 |
Census Appearances
1920
Cook, Illinois
Head, age 32
Cook, Illinois · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaufmann |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Year of Immigration | 1910 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | Shoemaker |
| Industry | Shoes |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Birth Country | Switzerland |
| Year of Naturalization | 1913 |
| Birthplace (normalized) | switzerland |
1930
Cook, Illinois
Head, age 40
Cook, Illinois · implied b. ~1890 — 5 household members
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 32 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | Head Houseman |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | R |
| Home Value / Rent | 60 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Cook-County, Illinois
Head, age 50
Cook-County, Illinois · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kauffman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Houseman |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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 John Kaufman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kaufman
Head · 1930 · age 40 · b. ~1890 · 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:illinoiscensus00reel478:0145)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Swann | 16 | son | None | Illinois |
| 2 | Bernice Swann | 13 | daughter | None | Illinois |
| 3 | Charles Swann | 7 | son | None | Illinois |
| 4 | Jack Swann | 2 | son | None | Illinois |
| 5 | — | None | — | — | — |
| 6 | — | None | — | — | — |
| 7 | — | None | — | — | — |
| 8 | Abraham Rubenstein | 52 | Head | Carpenter | Poland |
| 9 | Esther Rubenstein | 51 | wife | None | Poland |
| 10 | Hyman Rubenstein | 30 | son | Physician | Poland |
| 11 | Ann Rubenstein | 26 | daughter | Stenographer | Poland |
| 12 | Faye Rubenstein | 23 | daughter | Stenographer | Poland |
| 13 | Blanche Rubenstein | 16 | daughter | None | Illinois |
| 14 | — | None | — | — | — |
| 15 | — | None | — | — | — |
| 16 | Walter E. Zaeun | 32 | Head | Structural Steel | Germany |
| 17 | Elsie Zaeun | 32 | wife | None | Germany |
| 18 | George Hertz | 23 | lodger | Carpenter | Indiana |
| 19 | James Watt | 29 | Head | Vice President | Illinois |
| 20 | Gladys Watt | 26 | wife | None | Illinois |
| 21 | Edwin Watt | 6 | son | None | Illinois |
| 22 | Virginia Watt | 4 | daughter | None | Illinois |
| 23 | Anthony Schulter | 42 | Head | Tailor | Canada English |
| 24 | Lillian Schulter | 37 | wife | None | Canada English |
| 25 | Frances Schulter | 2 | son | None | Illinois |
| 26 | John Kaufman THIS PERSON | 40 | Head | Head Houseman | Switzerland |
| 27 | Mary Kaufman | 34 | wife | None | Austria |
| 28 | John Kaufman | 8 | daughter | None | Illinois |
| 29 | Jack Kaufman | 6 | son | None | Illinois |
| 30 | Lorraine Kaufman | 1 | daughter | None | Illinois |
| 31 | Ralph Tiernan | 37 | Head | Store Manager | Illinois |
| 32 | Freda Tiernan | 30 | wife | None | New York |
| 33 | Harold Tiernan | 10 | son | None | Illinois |
| 34 | Howard Tiernan | 10 | son | None | Illinois |
| 35 | — | None | — | — | — |
| 36 | William Westphal | 39 | Head | Painter | Illinois |
| 37 | Emma Westphal | 43 | wife | None | Illinois |
| 38 | Eleanor Westphal | 16 | daughter | None | Illinois |
| 39 | Harold Westphal | 14 | son | None | Illinois |
| 40 | Bernice Westphal | 10 | daughter | None | Illinois |
| 41 | Catherine Westphal | 9 | daughter | None | Illinois |
| 42 | Edward Zotter | 61 | Head | Machinist | Switzerland |
| 43 | Bertha Zotter | 56 | wife | None | Germany |
| 44 | Arthur Evans | 34 | step-son-in-law | Knitter | Wisconsin |
| 45 | Lillian Evans | 32 | step-daughter | None | Illinois |
| 46 | Arthur Jr. Evans | 3 | grand-son | None | Illinois |
| 47 | Arthur Koss | 32 | step-son | Truck Driver | Wisconsin |
| 48 | Hazel Koss | 30 | step-daughter-in-law | None | Illinois |
| 49 | Lorraine Koss | 4 | grand-daughter | None | Illinois |
| 50 | Frank Malisky | 45 | Head | Conductor | 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)