JP
John Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this John Pollock across the 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 10-person household.
Age 49
b. ~1891
Male
Head
Born: Czechoslovakia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Van Voorhis |
| 1935 Residence (County) | Washington |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1080 |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
| Occupation | Miner |
| Township / Ward | Van Voorhis |
| Est. Birth Year | ~1891 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Charles Pollock | Son | — | 20 | ~1920 |
| Julia Pollock | Daughter | — | 12 | ~1928 |
| Mary Pollock | Daughter | — | 19 | ~1921 |
| Ann Pollock | Daughter | — | 14 | ~1926 |
| John Pollock | Son | — | 21 | ~1919 |
| Helen Pollock | Daughter | — | 17 | ~1923 |
| John Pollock | Head | — | 49 | ~1891 |
| Frank Pollock | Son | — | 23 | ~1917 |
| Margaret Pollock | Daughter | — | 8 | ~1932 |
| Veronica Pollock | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Allegheny, Pennsylvania
Other, age 39
Allegheny, Pennsylvania · implied b. ~1891 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 22 |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Slovak |
| Home Owned/Rented | 30 |
| Home Value / Rent | R |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
1940
Washington-County, Pennsylvania
Head, age 49
Washington-County, Pennsylvania · implied b. ~1891 — 10 household members
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | Van Voorhis |
| 1935 Residence (County) | Washington |
| Naturalization Status | First papers filed |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1080 |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
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 · 1940 · age 49 · b. ~1891 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03623-00503)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Starkey | 20 | Daughter | — | Pennsylvania |
| 42 | John Starkey | 18 | Son | — | Pennsylvania |
| 43 | Chester Harkinson | 45 | Head | Miner | Pennsylvania |
| 44 | Margaret Harkinson | 42 | Wife | — | Pennsylvania |
| 45 | Arthur Harkinson | 19 | Son | Miner | Pennsylvania |
| 46 | Torrance Harkinson | 13 | Son | — | Pennsylvania |
| 47 | Gladys Harkinson | 9 | Daughter | — | Pennsylvania |
| 48 | Leonard Harkinson | 75 | Father | — | Sweden |
| 49 | John Pollock THIS PERSON | 49 | Head | Miner | Czechoslovakia |
| 50 | Veronica Pollock | 46 | Wife | — | Czechoslovakia |
| 51 | Frank Pollock | 23 | Son | — | Pennsylvania |
| 52 | John Pollock | 21 | Son | Sales Clerk | Pennsylvania |
| 53 | Charles Pollock | 20 | Son | Miner | Pennsylvania |
| 54 | Mary Pollock | 19 | Daughter | — | Pennsylvania |
| 55 | Helen Pollock | 17 | Daughter | Maid | Pennsylvania |
| 56 | Ann Pollock | 14 | Daughter | — | Pennsylvania |
| 57 | Julia Pollock | 12 | Daughter | — | Pennsylvania |
| 58 | Margaret Pollock | 8 | Daughter | — | Pennsylvania |
| 59 | William Price | 26 | Head | Miner | Pennsylvania |
| 60 | Margaret Price | 23 | Wife | — | Pennsylvania |
| 61 | William Dudley Price | 2 | Son | — | Pennsylvania |
| 62 | Sylvia Jean Price | 1 | Daughter | — | Pennsylvania |
| 63 | Judith Diana Price | 0 | Daughter | — | Pennsylvania |
| 64 | Theodore Skirpan | 59 | Head | Miner | Poland |
| 65 | Anna Skirpan | 55 | Wife | — | Czechoslovakia |
| 66 | Pete Skirpan | 27 | Son | Miner | Pennsylvania |
| 67 | Annie Skirpan | 22 | Daughter | Maid | Pennsylvania |
| 68 | Joseph Skirpan | 19 | Son | Miner | Pennsylvania |
| 69 | Helen Skirpan | 14 | Daughter | Maid | Pennsylvania |
| 70 | Paul Skirpan | 11 | Son | — | Pennsylvania |
| 71 | Ray Mitchell | 28 | Head | Miner | Pennsylvania |
| 72 | Olive Mitchell | 25 | Wife | — | Pennsylvania |
| 73 | Esther Mitchell | 5 | Daughter | — | Pennsylvania |
| 74 | Ray Mitchell | 4 | Son | — | Pennsylvania |
| 75 | Elmer Brewer | 39 | Head | Laborer | Pennsylvania |
| 76 | Mildred Brewer | 37 | Wife | — | Pennsylvania |
| 77 | Arthur Brewer | 17 | Son | — | Pennsylvania |
| 78 | Burton Clifford | 29 | Head | Miner | Pennsylvania |
| 79 | Jane Clifford | 26 | Wife | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)