JG
John Geary — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Geary across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 6-person household.
Age 12
b. ~1918
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Geary |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Bernice Geary | Daughter | — | 5 | ~1925 |
| Josephine Geary | Spouse | — | 42 | ~1888 |
| John Geary | Son | — | 12 | ~1918 |
| Anne Geary | Daughter | — | 14 | ~1916 |
| Martha Geary | Daughter | — | 10 | ~1920 |
| John Geary | Head | — | 47 | ~1883 |
Census Appearances
1930
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1918 — 6 household members
| Surname | Geary |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 24
Cook-County, Illinois · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gerry |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Steel Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Geary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Geary
Son · 1930 · age 12 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Martha Geary
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Geary
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Geary
Sibling · 1930 · age 5
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:illinoiscensus00reel436:0207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bruno Dakinsk | 1 | Son | — | Illinois |
| 52 | Charles Geriba | 54 | Head | Laborer | Lithuania |
| 53 | Mary Geriba | 52 | Wife | — | Lithuania |
| 54 | Charles Geriba | 17 | Son | — | Illinois |
| 55 | Elizabeth Leshkus | 10 | Step-daughter | — | Illinois |
| 56 | Paul Gries | 53 | Head | Fireman | Germany |
| 57 | Margaret Gries | 49 | Wife | — | United States |
| 58 | Roman Wockowicz | 80 | Head | — | Germany |
| 59 | Emilie Varner | 60 | Roomer | Music Teacher | Germany |
| 60 | Samuel La Porte | 30 | Head | Mechanic | Illinois |
| 61 | Hattie La Porte | 30 | Wife | — | Illinois |
| 62 | Joseph La Porte | 11 | Son | — | Illinois |
| 63 | Eleanor La Porte | 10 | Daughter | — | Illinois |
| 64 | James La Porte | 5 | Son | — | Illinois |
| 65 | William Lentis | 30 | Head | Laborer | England |
| 66 | Ada Lentis | 25 | Wife | — | England |
| 67 | Ivy Lentis | 7 | Daughter | — | Illinois |
| 68 | George Lentis | 5 | Son | — | Illinois |
| 69 | Peter Lukasunas | 52 | Head | Laborer | Lithuania |
| 70 | Julia Lukasunas | 51 | Wife | — | Lithuania |
| 71 | Bernice Lukasunas | 18 | Daughter | Clerk | Illinois |
| 72 | Steve Truzinski | 31 | Son-in-law | Laborer | Illinois |
| 73 | Diane Truzinski | 29 | Daughter-in-law | — | Illinois |
| 74 | Walter Truzinski | 20 | Roomer | — | Illinois |
| 75 | John Geary | 47 | Head | Auto Painter | Lithuania |
| 76 | Josephine Geary | 42 | Wife | — | Lithuania |
| 77 | Anne Geary | 14 | Daughter | — | Illinois |
| 78 | John Geary THIS PERSON | 12 | Son | — | Illinois |
| 79 | Martha Geary | 10 | Daughter | — | Illinois |
| 80 | Bernice Geary | 5 | Daughter | — | Illinois |
| 81 | William Carpenter | 42 | Head | Laborer | Illinois |
| 82 | Estelle Carpenter | 45 | Wife | — | Illinois |
| 83 | Edward Carpenter | 14 | Son | — | Illinois |
| 84 | Evelyn Carpenter | 11 | Daughter | — | Illinois |
| 85 | Kathryn Carpenter | 10 | Daughter | — | Illinois |
| 86 | Joan Carpenter | 8 | Daughter | — | Illinois |
| 87 | Anne Carpenter | 7 | Daughter | — | Illinois |
| 88 | Dolores Carpenter | 5 | Daughter | — | Illinois |
| 89 | James Carpenter | 4 | Son | — | Illinois |
| 90 | John Carpenter | 2 | Son | — | Illinois |
| 91 | Elizabeth Carpenter | 1 | Daughter | — | Illinois |
| 92 | Lucille Carpenter | 25 | Wife | Inspector | Northern Ireland |
| 93 | Frances Kozojed | 33 | Head | — | Illinois |
| 94 | Mary E. Kozojed | 27 | Wife | — | Illinois |
| 95 | John Kozojed | 2 | Son | — | Illinois |
| 96 | Lulu Kozojed | 0 | Daughter | — | Illinois |
| 97 | Sebastiano Leto | 34 | Head | Laborer | Italy |
| 98 | Antonia Leto | 25 | Wife | — | Italy |
| 99 | Rocco Leto | 12 | Son | — | Illinois |
| 100 | William Leto | 10 | Son | — | 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)