JP
John Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Williamson-County, Texas
Our Model Tree links this John Pollock across the 1930 and 1940 US Censuses in Williamson-County, Texas (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 7-person household.
Age 39
b. ~1901
Male
Head
Born: Czechoslovakia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Williamson-County, Texas |
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | R |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Farmer |
| Industry | on farm |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Czechoslovakia |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
| Occupation | Farmer |
| Township / Ward | Justice Precinct 2 |
| Est. Birth Year | ~1901 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Pollock | Daughter | — | 4 | ~1936 |
| Joe Pollock | Son | — | 6 | ~1934 |
| John Pollock | Head | — | 39 | ~1901 |
| Lillie Pollock | Spouse | — | 34 | ~1906 |
| Raymond Pollock | Son | — | 10 | ~1930 |
| Martha Pollock | Daughter | — | 1 | ~1939 |
| Mildred Pollock | Daughter | — | 8 | ~1932 |
Census Appearances
1930
Williamson, Texas
Head, age 29
Williamson, Texas · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Paluch |
| Given Name | Joe |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1913 |
| Age at First Marriage | 25 |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Czech |
| Home Owned/Rented | R |
| Birth Country | Czechoslovakia |
| Birthplace (normalized) | czechoslovakia |
1940
Williamson-County, Texas
Head, age 39
Williamson-County, Texas · implied b. ~1901 — 7 household members
| Surname | Pollock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Czechoslovakia |
| 1935 Residence (City) | R |
| Naturalization Status | Alien |
| Occupation | Farmer |
| Industry | on farm |
| Class of Worker | E |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Czechoslovakia |
| 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 39 · b. ~1901 · Texas
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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 — Williamson-County, Texas
Open full size
1940 US Federal Census — Williamson-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04166-00281)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John L. Moseley | 57 | Head | Farmer | Texas |
| 2 | Ola Moseley | 48 | Wife | — | Texas |
| 3 | George L. Court | 49 | Head | Farmer | Arkansas |
| 4 | Lillie Court | 31 | Wife | — | Texas |
| 5 | Henry Mitchell | 41 | Head | Labourer | Texas |
| 6 | Willie Mae Mitchell | 37 | Wife | — | Texas |
| 7 | Henry L. Jr. Mitchell | 15 | Son | Labourer | Texas |
| 8 | Grant Mitchell | 14 | Son | Labourer | Texas |
| 9 | John Alvin Mitchell | 11 | Son | — | Texas |
| 10 | Richie Mitchell | 12 | Son | — | Texas |
| 11 | Bertha May Mitchell | 7 | Daughter | — | Texas |
| 12 | Lillian Annie Mitchell | 5 | Daughter | — | Texas |
| 13 | Alma Lee Mitchell | 2 | Daughter | — | Texas |
| 14 | Bennie Mitchell | 1 | Son | — | Texas |
| 15 | John Pollock THIS PERSON | 39 | Head | Farmer | Czechoslovakia |
| 16 | Lillie Pollock | 34 | Wife | — | Texas |
| 17 | Raymond Pollock | 10 | Son | — | Texas |
| 18 | Mildred Pollock | 8 | Daughter | — | Texas |
| 19 | Joe Joe Pollock | 6 | Son | — | Texas |
| 20 | Mary Pollock | 4 | Daughter | — | Texas |
| 21 | Martha Pollock | 1 | Daughter | — | Texas |
| 22 | Joe R. Mabry | 32 | Head | Farmer | Texas |
| 23 | Annie Mabry | 29 | Wife | — | Texas |
| 24 | Edward Mabry | 5 | Son | — | Texas |
| 25 | Sybil Mabry | 3 | Daughter | — | Texas |
| 26 | Mat M. Mabry | 64 | Head | Farmer | Czechoslovakia |
| 27 | Mary Mabry | 59 | Wife | — | Czechoslovakia |
| 28 | Mary J. Mabry | 29 | Daughter | — | Texas |
| 29 | Vera Mabry | 25 | Daughter | — | Texas |
| 30 | Raymond Mabry | 22 | Son | Farmer | Texas |
| 31 | Ludwick Koznasby | 35 | Head | Farmer | Texas |
| 32 | Joe Koznasby | 32 | Brother | Farmer | Texas |
| 33 | Louis Koznasby | 27 | Brother | Labourer | Texas |
| 34 | Mary Koznasby | 22 | Sister | — | Texas |
| 35 | Annie Koznasby | 17 | Sister | — | Texas |
| 36 | Joseph A. Campbell | 54 | Head | Farmer | Mississippi |
| 37 | Joseph Jr. Campbell | 20 | Son | Farmer | Texas |
| 38 | Frank John Mabry | 28 | Head | Farmer | Texas |
| 39 | Annie May Mabry | 24 | Wife | — | Texas |
| 40 | Frank B. Mabry | 5 | Son | — | Texas |
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)