MP
Mary Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Richland-County, Ohio
Our Model Tree links this Mary Pollock across the 1930 and 1940 US Censuses in Richland-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, Ohio |
| Surname | Pollock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lexington village |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Lexington Village |
| Est. Birth Year | ~1925 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Pollock | Daughter | — | 15 | ~1925 |
| Gerald Pollock | Son | — | 11 | ~1929 |
| Earl Pollock | Head | — | 40 | ~1900 |
| Lucy Pollock | Spouse | — | 36 | ~1904 |
| Betty Pollock | Daughter | — | 10 | ~1930 |
| Lois Pollock | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Richland, Ohio
Daughter, age 5
Richland, Ohio · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pallock |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Richland-County, Ohio
Daughter, age 15
Richland-County, Ohio · implied b. ~1925 — 6 household members
| Surname | Pollock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lexington village |
| 1935 Residence (County) | Richland |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mary Pollock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pollock
Daughter · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Lois Pollock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Pollock
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Pollock
Sibling · 1940 · age 10
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 — Richland-County, Ohio
Open full size
1940 US Federal Census — Richland-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03136-00501)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | R. L. Parrott | 44 | Head | Laborer | Ohio |
| 2 | Hazel G. Parrott | 49 | Wife | House Wife | Ohio |
| 3 | Beulah Parrott | 19 | Daughter | — | Ohio |
| 4 | William Parrott | 18 | Son | — | Ohio |
| 5 | Stanley Parrott | 16 | Son | — | Ohio |
| 6 | Iona Parrott | 12 | Daughter | — | Ohio |
| 7 | W. D. Armstrong | 41 | Head | Farmer | Ohio |
| 8 | J. M. Armstrong | 84 | Father | — | Ohio |
| 9 | J. W. Hirth | 66 | Head | Stock-Buyer | Ohio |
| 10 | Blanche Hirth | 58 | Wife | House Wife | Ohio |
| 11 | Esther Hirth | 14 | Daughter | — | Ohio |
| 12 | Louise Gerwig | 20 | Lodger | Teacher | Ohio |
| 13 | Earl Pollock | 40 | Head | Stone Mason | Ohio |
| 14 | Lucy Pollock | 36 | Wife | House Wife | Ohio |
| 15 | Mary Pollock THIS PERSON | 15 | Daughter | — | Ohio |
| 16 | Gerald Pollock | 11 | Son | — | Ohio |
| 17 | Betty Pollock | 10 | Daughter | — | Ohio |
| 18 | Lois Pollock | 9 | Daughter | — | Ohio |
| 19 | H. J. Linton | 65 | Head | Marshall | Ohio |
| 20 | Mary O. Linton | 57 | Wife | House Wife | Ohio |
| 21 | Richard Linton | 22 | Son | Dairy | Ohio |
| 22 | Marilynn Linton | 15 | Daughter | — | Ohio |
| 23 | Mrs. S. Shuler | 85 | Head | House Work | Ohio |
| 24 | A. B. Shuler | 61 | Son | Westinghouse | Ohio |
| 25 | G. F. Derfler | 51 | Head | Pioneer Storage | Ohio |
| 26 | Maud Derfler | 55 | Wife | House Wife | Pa |
| 27 | Henry D. Seneff | 37 | Head | Salesman | Pa |
| 28 | Sylvia R. Seneff | 36 | Wife | House Wife | Ohio |
| 29 | Laurann Seneff | 15 | Daughter | — | Ohio |
| 30 | Sylvia Lou Seneff | 13 | Daughter | — | Ohio |
| 31 | Fred Livingston | 74 | Father-in-law | — | Ohio |
| 32 | Lua Livingston | 69 | Mother-in-law | — | Ohio |
| 33 | Clarence Eichler | 53 | Head | Lumber Co | Ohio |
| 34 | Bertha O. Eichler | 50 | Wife | House Wife | Ohio |
| 35 | Guy V. Chapin | 47 | Head | Salesman | Ohio |
| 36 | Bessie S. Chapin | 46 | Wife | Housewife | Ohio |
| 37 | Virginia Chapin | 23 | Daughter | Beautician | Ohio |
| 38 | Carol Chapin | 16 | Daughter | — | Ohio |
| 39 | Walter Frizzell | 41 | Head | Tire Building | Ohio |
| 40 | Thelma Frizzell | 34 | Wife | House Wife | West Vir |
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)