JP
John Pollock — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Pennsylvania
Our Model Tree links this John Pollock across the 1930 and 1940 US Censuses in Washington, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 10-person household.
Age 46
b. ~1884
Male
Head
Born: Czecho Slovakia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Pennsylvania |
| Surname | Pollock |
| Given Name | John Head |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Czecho Slovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 24 |
| Father's Birthplace | Czecho Slovakia |
| Mother's Birthplace | Czecho Slovakia |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | Magyar |
| Home Owned/Rented | O |
| Home Value / Rent | 1750 |
| Veteran | No |
| Birthplace (normalized) | czecho slovakia |
| Occupation | Miner |
| Township / Ward | East Pike Run Township Pt Of |
| Est. Birth Year | ~1884 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Pollock | Daughter | — | 17 | ~1913 |
| Margaret Pollock | Daughter | — | 8 | ~1922 |
| George Adam | Other | — | 48 | ~1882 |
| Annie Pollock | Daughter | — | 4 | ~1926 |
| Mary Pollock | Daughter | — | 6 | ~1924 |
| John Pollock | Head | — | 46 | ~1884 |
| John Pollock | Son | — | 15 | ~1915 |
| Albert Pollock | Son | — | 13 | ~1917 |
| Andrew Pollock | Son | — | 11 | ~1919 |
| Elizabeth Pollock | Spouse | — | 44 | ~1886 |
Census Appearances
1930
Washington, Pennsylvania
Head, age 46
Washington, Pennsylvania · implied b. ~1884 — 10 household members
| Surname | Pollock |
| Given Name | John Head |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Czecho Slovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 24 |
| Father's Birthplace | Czecho Slovakia |
| Mother's Birthplace | Czecho Slovakia |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | No |
| Mother Tongue | Magyar |
| Home Owned/Rented | O |
| Home Value / Rent | 1750 |
| Veteran | No |
| Birthplace (normalized) | czecho slovakia |
1940
Washington-County, Pennsylvania
Other, age 57
Washington-County, Pennsylvania · implied b. ~1883 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollak |
| Given Name | John |
| Relationship to Head | Inmate |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Single |
| Birthplace | Czecho Slovakia |
| 1935 Residence (City) | Meadowlands |
| 1935 Residence (County) | Washington |
| Naturalization Status | Alien |
| Industry | Inat |
| Highest Grade | No 4 |
| 1935 Residence | Pennsylvania |
| Birthplace (normalized) | czecho slovakia |
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 Pollock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Pollock
Head · 1930 · age 46 · b. ~1884 · Pennsylvania
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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 — Washington, Pennsylvania
Open full size
1930 US Federal Census — Washington, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2162:0427)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Head Chmara | 50 | Head | Pumper | Czecho Slovakia |
| 2 | Annie Wife-H Chmara | 41 | Wife | — | Czecho Slovakia |
| 3 | Annie Daughter Chmara | 8 | Daughter | — | Pennsylvania |
| 4 | Louis Son Chmara | 22 | Son | Electrician | Pennsylvania |
| 5 | Stanley Son Chmara | 20 | Son | Com. Glass | Pennsylvania |
| 6 | John Son Chmara | 4 | Son | — | Pennsylvania |
| 7 | Joseph Son Chmara | 0 | Son | — | Pennsylvania |
| 8 | John Boarder Slaupic | 40 | Boarder | Miner | Czecho Slovakia |
| 9 | George Boarder Tressica | 47 | Boarder | Miner | Czecho Slovakia |
| 10 | Felix Boarder Cochersky | 36 | Boarder | Miner | Czecho Slovakia |
| 11 | John Head Pollock THIS PERSON | 46 | Head | Miner | Czecho Slovakia |
| 12 | Elizabeth Wife-H Pollock | 44 | Wife | — | Czecho Slovakia |
| 13 | Elizabeth Daughter Pollock | 17 | Daughter | — | Pennsylvania |
| 14 | John Son Pollock | 15 | Son | Miner | Pennsylvania |
| 15 | Albert Son Pollock | 13 | Son | — | Pennsylvania |
| 16 | Andrew Son Pollock | 11 | Son | — | Pennsylvania |
| 17 | Margaret Daughter Pollock | 8 | Daughter | — | Pennsylvania |
| 18 | Mary Daughter Pollock | 6 | Daughter | — | Pennsylvania |
| 19 | Annie Daughter Pollock | 4 | Daughter | — | Pennsylvania |
| 20 | George Boarder Adam | 48 | Boarder | Miner | Czecho Slovakia |
| 21 | Zora Head Waltz | 30 | Head | Miner | Indiana |
| 22 | Odessa Wife-H Waltz | 27 | Wife | — | Indiana |
| 23 | Theodore Daughter Waltz | 10 | Daughter | — | Indiana |
| 24 | Orville Son Waltz | 7 | Son | — | Pennsylvania |
| 25 | Virginia Daughter Waltz | 5 | Daughter | — | Pennsylvania |
| 26 | Robert Son Waltz | 2 | Son | — | Pennsylvania |
| 27 | Ruth Daughter Waltz | 1 | Daughter | — | Pennsylvania |
| 28 | Sam Head Liko | 32 | Head | Miner | Czecho Slovakia |
| 29 | Julie Wife-H Liko | 25 | Wife | — | Czecho Slovakia |
| 30 | Helen Daughter Liko | 3 | Daughter | — | Pennsylvania |
| 31 | John Head Derevenau | 39 | Head | Miner | Czecho Slovakia |
| 32 | Mary Wife-H Derevenau | 38 | Wife | — | Czecho Slovakia |
| 33 | Helen Daughter Derevenau | 10 | Daughter | — | Czecho Slovakia |
| 34 | John Son Derevenau | 3 | Son | — | Pennsylvania |
| 35 | John Boarder Hudock | 40 | Boarder | Miner | Czecho Slovakia |
| 36 | George Head Cernock | 57 | Head | Miner | Czecho Slovakia |
| 37 | Suzie Wife-H Cernock | 52 | Wife | — | Czecho Slovakia |
| 38 | George Son Cernock | 25 | Son | Motorman | Pennsylvania |
| 39 | Sam Head Marina | 62 | Head | Miner | Italy |
| 40 | Felicia Wife-H Marina | 54 | Wife | — | Italy |
| 41 | Joseph Son Marina | 12 | Son | — | Pennsylvania |
| 42 | Joseph Head Abick | 51 | Head | — | Czecho Slovakia |
| 43 | Mary Wife-H Abick | 58 | Wife | — | Czecho Slovakia |
| 44 | Margaret Head Grisichis | 35 | Head | Miner | Italy |
| 45 | Mary Wife-H Grisichis | 25 | Wife | — | Italy |
| 46 | Faustino Son Grisichis | 4 | Son | — | Pennsylvania |
| 47 | John Head Poledor | 46 | Head | Miner | Italy |
| 48 | Jennie Wife-H Poledor | 49 | Wife | — | Italy |
| 49 | Santino Daughter Poledor | 13 | Daughter | — | Pennsylvania |
| 50 | Uncenni Daughter Poledor | 11 | Daughter | — | Pennsylvania |
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)