JP
John Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Pollock across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Etna Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Etna Borough |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Pollock | Son | — | 18 | ~1922 |
| Roy Pollock | Son | — | 12 | ~1928 |
| Richard Pollock | Son | — | 13 | ~1927 |
| Betty Pollock | Daughter | — | 14 | ~1926 |
| Gertrude Pollock | Spouse | — | 51 | ~1889 |
| James Pollock | Son | — | 8 | ~1932 |
| William Pollock | Son | — | 16 | ~1924 |
| Gilmore Pollock | Head | — | 67 | ~1873 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Austria |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 18
Allegheny-County, Pennsylvania · implied b. ~1922 — 8 household members
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Etna Borough |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | H-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 Pollock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Pollock
Son · 1940 · age 18 · b. ~1922 · Pennsylvania
★ You are viewing this record
Sibling
William Pollock
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Pollock
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Pollock
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Pollock
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Pollock
Sibling · 1940 · 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
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03403-00675)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Leight | 21 | Son | Trucker | Pennsylvania |
| 2 | Marie Leight | 19 | Daughter | — | Pennsylvania |
| 3 | Paul Noe | 36 | Head | Electrician | Pennsylvania |
| 4 | Euladia Noe | 38 | Wife | — | Pennsylvania |
| 5 | Adelaide Noe | 11 | Daughter | — | Pennsylvania |
| 6 | James Noe | 10 | Son | — | Pennsylvania |
| 7 | Lois Ann Noe | 4 | Daughter | — | Pennsylvania |
| 8 | Margaret Kerwitch | 57 | Head | — | Germany |
| 9 | Ray Kerwitch | 11 | Son | — | Pennsylvania |
| 10 | Harry Lee Martin | 24 | Head | Clerk | Pennsylvania |
| 11 | Lucille M. Martin | 24 | Wife | — | Pennsylvania |
| 12 | Jacqueline Martin | 3 | Daughter | — | Pennsylvania |
| 13 | Janet Lee Martin | 1 | Daughter | — | Pennsylvania |
| 14 | Gilmore Pollock | 67 | Head | Carpenter | Pennsylvania |
| 15 | Gertrude Pollock | 51 | Wife | — | Minnesota |
| 16 | John Pollock THIS PERSON | 18 | Son | — | Pennsylvania |
| 17 | William Pollock | 16 | Son | — | Pennsylvania |
| 18 | Betty Ruth Pollock | 14 | Daughter | — | Pennsylvania |
| 19 | Richard Pollock | 13 | Son | — | Pennsylvania |
| 20 | Roy Pollock | 12 | Son | — | Pennsylvania |
| 21 | James Pollock | 8 | Son | — | Pennsylvania |
| 22 | Anthony Umferdorfer | 58 | Head | Laborer (Cleaner) | Hungary |
| 23 | Amelia Umferdorfer | 47 | Wife | — | Hungary |
| 24 | John Umferdorfer | 24 | Son | Laborer | Pennsylvania |
| 25 | Joseph Umferdorfer | 17 | Son | — | Pennsylvania |
| 26 | Edward Umferdorfer | 15 | Son | — | Pennsylvania |
| 27 | Marie Umferdorfer | 12 | Daughter | — | Pennsylvania |
| 28 | George Irmener | 33 | Head | Optician | Germany |
| 29 | Clara Irmener | 29 | Wife | — | Germany |
| 30 | Lawrence Berner | 53 | Head | Roofer-Tinner | Pennsylvania |
| 31 | Lawrence Jr. Berner | 29 | Son | Stationery Salesman | Pennsylvania |
| 32 | Clifford Berner | 27 | Son | Advertising Salesman | Pennsylvania |
| 33 | Elda Berner | 24 | Daughter | — | Pennsylvania |
| 34 | Richard Berner | 20 | Son | Auto Mobile Mechanic | Pennsylvania |
| 35 | Lorraine Berner | 17 | Daughter | — | Pennsylvania |
| 36 | Jean Berner | 14 | Daughter | — | Pennsylvania |
| 37 | Hugh Wallace | 34 | Head | Glass Worker | Pennsylvania |
| 38 | Ethel Wallace | 26 | Wife | — | Pennsylvania |
| 39 | Grace Wallace | 2 | Daughter | — | Pennsylvania |
| 40 | John H. Wirth | 63 | Head | Watchman | 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)