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William Heller — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this William Heller across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 6-person household.
Age 10
b. ~1920
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Heller |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Minnie Heller | Daughter | — | 14 | ~1916 |
| Bertha Heller | Daughter | — | 16 | ~1914 |
| Mary Heller | Other | — | 48 | ~1882 |
| William Heller | Son | — | 10 | ~1920 |
| William Heller | Head | — | 49 | ~1881 |
| Marie Heller | Daughter | — | 19 | ~1911 |
Census Appearances
1930
Cook, Illinois
Son, age 10
Cook, Illinois · implied b. ~1920 — 6 household members
| Surname | Heller |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 20
Cook-County, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoeller |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Cicero town |
| 1935 Residence (County) | Cook |
| Occupation | Spot welder |
| Industry | Wire mesh manufacture |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 250 |
| Highest Grade | H 4 |
| 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 William Heller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Heller
Son · 1930 · age 10 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Marie Heller
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Heller
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Heller
Sibling · 1930 · age 16
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:illinoiscensus00reel464:0974)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Vito Scacca | 28 | Son | — | Illinois |
| 52 | Toni Scacca | 33 | Boarder | Laborer | Italy |
| 53 | William Heller | 49 | Head | Appraiser | Austria |
| 54 | Mary Heller | 48 | Wife-H | — | Austria |
| 55 | Marie Heller | 19 | Daughter | Packer | Austria |
| 56 | Bertha Heller | 16 | Daughter | Wrapping | Austria |
| 57 | Minnie Heller | 14 | Daughter | — | Illinois |
| 58 | William Heller THIS PERSON | 10 | Son | — | Illinois |
| 59 | John Babak | 48 | Head | Builder | Austria |
| 60 | Katie Babak | 47 | Wife-H | — | Austria |
| 61 | James Babak | 18 | Son | Helper | Illinois |
| 62 | William Babak | 14 | Son | — | Illinois |
| 63 | Mike Babak | 12 | Son | — | Illinois |
| 64 | Eva Babak | 10 | Daughter | — | Illinois |
| 65 | Helen Babak | 8 | Daughter | — | Illinois |
| 66 | Stanley Gongacz | 53 | Head | Laborer | Poland |
| 67 | Stella Gongacz | 40 | Wife-H | — | Poland |
| 68 | Walter Gongacz | 15 | Son | Helper | Illinois |
| 69 | Joseph Gongacz | 13 | Son | — | Illinois |
| 70 | Mary Gongacz | 12 | Daughter | — | Illinois |
| 71 | Stella Gongacz | 11 | Daughter | — | Illinois |
| 72 | John Gongacz | 9 | Son | — | Illinois |
| 73 | Frank Gongacz | 7 | Son | — | Illinois |
| 74 | Frank Solmo | 36 | Head | Laborer | Italy |
| 75 | Rose Solmo | 29 | Wife-H | — | Illinois |
| 76 | Peter Solmo | 13 | Son | — | Illinois |
| 77 | Leo Solmo | 11 | Son | — | Illinois |
| 78 | Catherine Solmo | 9 | Daughter | — | Illinois |
| 79 | Joseph Solmo | 8 | Son | — | Illinois |
| 80 | Theresa Solmo | 5 | Daughter | — | Illinois |
| 81 | Josephine Solmo | 3 | Daughter | — | Illinois |
| 82 | Theodore Maffia | 59 | Head | Laborer | Italy |
| 83 | Amelia Maffia | 59 | Wife-H | — | Italy |
| 84 | Charles Maffia | 44 | Son | Laborer | Italy |
| 85 | Helen Maffia | 21 | Daughter | Stenographer | Illinois |
| 86 | Pasquale Angelo | 47 | Head | Laborer | Italy |
| 87 | Mary Angelo | 42 | Wife-H | — | Illinois |
| 88 | Philip Angelo | 20 | Son | — | Illinois |
| 89 | Tony Angelo | 18 | Son | Presser | Illinois |
| 90 | Josephine Angelo | 16 | Daughter | Helper | Illinois |
| 91 | Louis Angelo | 15 | Son | Messenger Boy | Illinois |
| 92 | Joseph Angelo | 12 | Son | — | Illinois |
| 93 | Theresa Angelo | 10 | Daughter | — | Illinois |
| 94 | William Angelo | 22 | Head | Helper | Illinois |
| 95 | Irene Angelo | 24 | Wife-H | — | Illinois |
| 96 | Richard Angelo | 4 | Son | — | Illinois |
| 97 | John Angelo | 3 | Son | — | Illinois |
| 98 | Dorothy Angelo | 1 | Daughter | — | Illinois |
| 99 | Mike Coviello | 32 | Head | Cabinet Maker | Italy |
| 100 | Mary Coviello | 32 | Wife-H | — | Italy |
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)