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John John — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cambria, Pennsylvania
Our Model Tree links this John John across the 1930 and 1940 US Censuses in Cambria, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1908), then head of a 7-person household.
Age 22
b. ~1908
Male
Head
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cambria, Pennsylvania |
| Surname | John |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Yugoslavia |
| Mother's Birthplace | Yugoslavia |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Miner |
| Township / Ward | Adams Township Pt Of |
| Est. Birth Year | ~1908 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary John | Daughter | — | 15 | ~1915 |
| Mildred John | Daughter | — | 14 | ~1916 |
| Barbara John | Daughter | — | 12 | ~1918 |
| Anna John | Daughter | — | 19 | ~1911 |
| Catherine John | Daughter | — | 10 | ~1920 |
| Margaret John | Daughter | — | 17 | ~1913 |
| John John | Head | — | 22 | ~1908 |
Census Appearances
1930
Cambria, Pennsylvania
Head, age 22
Cambria, Pennsylvania · implied b. ~1908 — 7 household members
| Surname | John |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Yugoslavia |
| Mother's Birthplace | Yugoslavia |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Somerset-County, Pennsylvania
Other, age 32
Somerset-County, Pennsylvania · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | John |
| Given Name | John |
| Relationship to Head | boarder |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Gray |
| 1935 Residence (County) | Somerset |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 700 |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 John across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John John
Head · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cambria, Pennsylvania
Open full size
1930 US Federal Census — Cambria, Pennsylvania
Page Contents
14 people indexed on this census page (ia:1930:fifteenthcensus00reel2010:0650)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John John THIS PERSON | 22 | Head | Miner | Pennsylvania |
| 2 | Anna John | 19 | Daughter | — | Pennsylvania |
| 3 | Margaret John | 17 | Daughter | — | Pennsylvania |
| 4 | Mary John | 15 | Daughter | — | Pennsylvania |
| 5 | Mildred John | 14 | Daughter | — | Pennsylvania |
| 6 | Barbara John | 12 | Daughter | — | Pennsylvania |
| 7 | Catherine John | 10 | Daughter | — | Pennsylvania |
| 8 | Harry Lukas | 43 | Head | Miner | Yugoslavia |
| 9 | Katherine Lukas | 37 | Wife | — | Yugoslavia |
| 10 | Katherine Lukas | 8 | Daughter | — | Pennsylvania |
| 11 | John Lukas | 6 | Son | — | Pennsylvania |
| 12 | Steve Lukas | 4 | Son | — | Pennsylvania |
| 13 | Mary Lukas | 2 | Daughter | — | Pennsylvania |
| 14 | Pete Poscovick | 41 | Boarder | Miner | Yugoslavia |
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)