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John Buck — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Buck across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 11-person household.
Age 14
b. ~1916
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Buck |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1916 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Sophia Buck | Daughter | — | 19 | ~1911 |
| George Mcdonell | Other | — | 67 | ~1863 |
| Stella Buck | Spouse | — | 43 | ~1887 |
| Rose Buck | Daughter | — | 16 | ~1914 |
| John Buck | Son | — | 14 | ~1916 |
| Henry Mcdonell | Other | — | 73 | ~1857 |
| Joe Buck | Head | — | 44 | ~1886 |
| Mary Buck | Daughter | — | 18 | ~1912 |
| Lucille Buck | Daughter | — | 2 | ~1928 |
| Stanley Buck | Son | — | 8 | ~1922 |
| Milton Buck | Son | — | 6 | ~1924 |
Census Appearances
1930
Cook, Illinois
Son, age 14
Cook, Illinois · implied b. ~1916 — 11 household members
| Surname | Buck |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 25
Cook-County, Illinois · implied b. ~1915 — 22 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Beck |
| Given Name | John E. |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Occupation | Type-Setter |
| Industry | Printing |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 964 |
| Highest Grade | No Hs 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 John Buck across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Buck
Son · 1930 · age 14 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Milton Buck
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Buck
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Buck
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Buck
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sophia Buck
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Buck
Sibling · 1930 · age 8
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:illinoiscensus00reel463:0854)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | James Bovvaski | 70 | Head | — | Austria |
| 52 | Rose Bovvaski | 67 | Wife | — | Poland |
| 53 | John Bovvaski | 30 | Son | Laborer | Illinois |
| 54 | Joseph Bovvaski | 23 | Son | Laborer | Illinois |
| 55 | Joseph Perez | 28 | Head | Laborer | Poland |
| 56 | Rose Perez | 24 | Wife | — | Poland |
| 57 | Joseph Perez | 0 | Son | — | Illinois |
| 58 | John Kozak | 45 | Head | Laborer | Poland |
| 59 | Mary Kozak | 40 | Wife | — | Poland |
| 60 | John Kozak | 15 | Son | — | Illinois |
| 61 | Helen Kozak | 13 | Daughter | — | Illinois |
| 62 | Edward Kozak | 10 | Son | — | Illinois |
| 63 | Joseph Lunnay | 46 | Head | Laborer | Austria |
| 64 | Mary Lunnay | 34 | Wife | — | Poland |
| 65 | Joseph Lunnay | 13 | Son | — | Illinois |
| 66 | John Lunnay | 11 | Son | — | Illinois |
| 67 | Edward Lunnay | 9 | Son | — | Illinois |
| 68 | Frank Lunnay | 6 | Son | — | Illinois |
| 69 | Stanley Lunnay | 4 | Son | — | Illinois |
| 70 | Mary Lunnay | 2 | Daughter | — | Illinois |
| 71 | John Pivovarski | 41 | Head | Laborer | Poland |
| 72 | Mary Pivovarski | 37 | Wife | — | Poland |
| 73 | John Pivovarski | 17 | Son | Laborer | Illinois |
| 74 | Joseph Pivovarski | 15 | Son | — | Illinois |
| 75 | Edward Pivovarski | 13 | Son | — | Illinois |
| 76 | Frank Pivovarski | 11 | Son | — | Illinois |
| 77 | Max Ratajczak | 34 | Head | Molder | Poland |
| 78 | Mary Ratajczak | 34 | Wife | — | Poland |
| 79 | John Ratajczak | 11 | Son | — | Illinois |
| 80 | Edward Ratajczak | 10 | Son | — | Illinois |
| 81 | Joseph Ratajczak | 10 | Son | — | Illinois |
| 82 | Frank Ratajczak | 8 | Son | — | Illinois |
| 83 | Stanley Ratajczak | 4 | Son | — | Illinois |
| 84 | Mary Ratajczak | 2 | Daughter | — | Illinois |
| 85 | John Pozdol | 50 | Head | Laborer | Poland |
| 86 | Mary Pozdol | 45 | Wife | — | Poland |
| 87 | Mary Pozdol | 21 | Daughter | Laborer | Poland |
| 88 | John Pozdol | 11 | Son | Laborer | Poland |
| 89 | Joseph Pozdol | 9 | Son | — | Poland |
| 90 | Joe Buck | 44 | Head | Laborer | Poland |
| 91 | Stella Buck | 43 | Wife | — | Poland |
| 92 | Sophia Buck | 19 | Daughter | Packer | Illinois |
| 93 | Mary Buck | 18 | Daughter | Laborer | Illinois |
| 94 | Rose Buck | 16 | Daughter | Waitress | Illinois |
| 95 | John Buck THIS PERSON | 14 | Son | — | Illinois |
| 96 | Stanley Buck | 8 | Son | — | Illinois |
| 97 | Milton Buck | 6 | Son | — | Illinois |
| 98 | Lucille Buck | 2 | Daughter | — | Illinois |
| 99 | Henry Mcdonell | 73 | Boarder | — | Illinois |
| 100 | George Mcdonell | 67 | Boarder | — | 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)