JG
John Gill — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Gill across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 3-person household.
Age 35
b. ~1895
Male
Head
Born: Poland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 28 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Occupation | Toolmaker |
| Industry | Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Occupation | Toolmaker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1895 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Gill | Son | — | 5 | ~1925 |
| Helen Gill | Spouse | — | 22 | ~1908 |
| John Gill | Head | — | 35 | ~1895 |
Census Appearances
1920
Cook, Illinois
Other, age 22
Cook, Illinois · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Poland |
| Year of Immigration | 1913 |
| Naturalization Status | Alien |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Tool maker |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1930
Cook, Illinois
Head, age 35
Cook, Illinois · implied b. ~1895 — 3 household members
| Surname | Gill |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 28 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Toolmaker |
| Industry | Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Cook-County, Illinois
Head, age 45
Cook-County, Illinois · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gull |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Tool Maker |
| Industry | Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Gill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Gill
Head · 1930 · age 35 · b. ~1895 · 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:illinoiscensus00reel467:0138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Abraham | 14 | Son | — | England |
| 52 | Marie | 10 | Daughter | — | England |
| 53 | Isidore | 30 | Brother | Tailor | Poland |
| 54 | Thomas Kusek | 30 | Head | Doreman | Illinois |
| 55 | Martha Kusek | 30 | Wife | — | Germany |
| 56 | Jenny Kusek | 9 | Daughter | — | Illinois |
| 57 | Sam Muskowsky | 43 | Head | Peddler | Poland |
| 58 | Ethel Muskowsky | 44 | Wife | — | Poland |
| 59 | David Muskowsky | 20 | Son | Peddler | Illinois |
| 60 | Mildred Muskowsky | 19 | Daughter | Saleslady | Illinois |
| 61 | Helen Muskowsky | 16 | Daughter | Saleslady | Illinois |
| 62 | Gertrude Muskowsky | 14 | Daughter | — | Illinois |
| 63 | Jeanette Muskowsky | 12 | Daughter | — | Illinois |
| 64 | Angelo Canestaro | 33 | Head | Laborer | Italy |
| 65 | Elizabeth Canestaro | 26 | Wife | — | Iowa |
| 66 | Ben Isenberg | 25 | Head | Laborer | Poland |
| 67 | Rose Isenberg | 26 | Wife | — | Poland |
| 68 | Herbert Isenberg | 1 | Son | — | Illinois |
| 69 | Thelma Isenberg | 0 | Daughter | — | Illinois |
| 70 | Sam Floren | 26 | Boarder | Baker | Poland |
| 71 | Anna-At Floren | 34 | Wife | — | Poland |
| 72 | Harry Floren | 12 | Son | — | Illinois |
| 73 | Freda Floren | 6 | Daughter | — | Illinois |
| 74 | Rose Floren | 4 | Daughter | — | Illinois |
| 75 | Paul Sternbant | 34 | Head | Soldier | Illinois |
| 76 | Emma Sternbant | 23 | Wife | — | Illinois |
| 77 | Paul Jr Sternbant | 3 | Son | — | Illinois |
| 78 | Raymond Sternbant | 0 | Son | — | Illinois |
| 79 | Harold A. Davis | 22 | Boarder | Laborer | Illinois |
| 80 | John Gill THIS PERSON | 35 | Head | Toolmaker | Poland |
| 81 | Helen Gill | 22 | Wife | — | Illinois |
| 82 | John Gill | 5 | Son | — | Illinois |
| 83 | Ignatius Laszkiewicz | 42 | Head | Agent | Poland |
| 84 | Alexandra Laszkiewicz | 39 | Wife | — | Poland |
| 85 | Jean Laszkiewicz | 17 | Daughter | Biller | Illinois |
| 86 | Janice Laszkiewicz | 16 | Daughter | — | Illinois |
| 87 | Nathie Laszkiewicz | 15 | Daughter | — | Illinois |
| 88 | Philip Laszkiewicz | 13 | Son | — | Illinois |
| 89 | Chester Laszkiewicz | 9 | Son | — | Illinois |
| 90 | Henry Laszkiewicz | 5 | Son | — | Illinois |
| 91 | Frank Slobodecki | 40 | Head | Buffer | Poland |
| 92 | Petranela Slobodecki | 36 | Wife | — | Poland |
| 93 | Frank Slobodecki | 15 | Son | — | Illinois |
| 94 | Stanley Slobodecki | 13 | Son | — | Illinois |
| 95 | Bruno Slobodecki | 11 | Son | — | Illinois |
| 96 | John Kowalczyk | 30 | Roomer | Cook | Poland |
| 97 | Louis Floriani | 30 | Head | Laborer | Italy |
| 98 | Elvira Floriani | 27 | Wife | — | Italy |
| 99 | Primo Floriani | 9 | Son | — | Italy |
| 100 | Oscar Rocho | 27 | Head | Storekeeper | 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)