MP
Mary Parks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Beaver-County, Pennsylvania
Our Model Tree links this Mary Parks across the 1930 and 1940 US Censuses in Beaver-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Beaver-County, Pennsylvania |
| Surname | Parks |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New Sewickley Twp |
| 1935 Residence (County) | Beaver |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | New Sewickley Twp |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Percy Parks | Head | — | 54 | ~1886 |
| David Parks | Son | — | 20 | ~1920 |
| John Parks | Son | — | 18 | ~1922 |
| Martha Parks | Daughter | — | 13 | ~1927 |
| Joseph Parks | Son | — | 16 | ~1924 |
| Mary Parks | Daughter | — | 15 | ~1925 |
| Clara Parks | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Beaver, Pennsylvania
Daughter, age 3
Beaver, Pennsylvania · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Park |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Czechoslovakia |
| Mother's Birthplace | Czechoslovakia |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Beaver-County, Pennsylvania
Daughter, age 15
Beaver-County, Pennsylvania · implied b. ~1925 — 7 household members
| Surname | Parks |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New Sewickley Twp |
| 1935 Residence (County) | Beaver |
| Highest Grade | No 8 |
| 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 Mary Parks across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Parks
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Martha Parks
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Parks
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Parks
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Parks
Sibling · 1940 · age 18
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 — Beaver-County, Pennsylvania
Open full size
1940 US Federal Census — Beaver-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03429-00150)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Mengel | 25 | Daughter | — | Pennsylvania |
| 2 | Fred Hale | 23 | Lodger | Laborer | Pennsylvania |
| 3 | John J Narvold | 37 | Head | Electrical Foreman | Ohio |
| 4 | Margaret Narvold | 33 | Wife | Electrical Footman | OHIO |
| 5 | Margaret A Narvold | 13 | Daughter | — | OHIO |
| 6 | John J. Jr. Narvold | 12 | Son | — | OHIO |
| 7 | Theresa M Narvold | 10 | Daughter | — | OHIO |
| 8 | Edward R Narvold | 9 | Son | — | Pennsylvania |
| 9 | Carl W Mengel | 48 | Head | Farmer | Pennsylvania |
| 10 | Nellie Mengel | 37 | Wife | — | Pennsylvania |
| 11 | Luther Mengel | 17 | Son | Farm Hand | Pennsylvania |
| 12 | Mary Mengel | 14 | Daughter | Farm Hand | Pennsylvania |
| 13 | Paul Mengel | 9 | Son | — | Pennsylvania |
| 14 | Nellie Mengel | 8 | Daughter | — | Pennsylvania |
| 15 | Carl Mengel | 5 | Son | — | Pennsylvania |
| 16 | George Knox | 17 | Hired Hand | Farm Hand | Pennsylvania |
| 17 | Percy H Parks | 54 | Head | Farmer | Pennsylvania |
| 18 | Clara Parks | 49 | Wife | — | Pennsylvania |
| 19 | David Parks | 20 | Son | — | Pennsylvania |
| 20 | John Parks | 18 | Son | — | Pennsylvania |
| 21 | Joseph Parks | 16 | Son | — | Pennsylvania |
| 22 | Mary Parks THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 23 | Martha Parks | 13 | Daughter | — | Pennsylvania |
| 24 | Robert Cornelius | 28 | Head | Laborer | OHIO |
| 25 | Erna Cornelius | 21 | Wife | — | Pennsylvania |
| 26 | Charles E Durr | 61 | Head | Farmer | Pennsylvania |
| 27 | Evelyn Durr | 45 | Sister | — | Pennsylvania |
| 28 | Fleming Barto | 37 | Head | Laborer | Pennsylvania |
| 29 | Alma Barto | 34 | Wife | — | Pennsylvania |
| 30 | Alvin Barto | 11 | Son | — | Pennsylvania |
| 31 | Donald L Barto | 6 | Son | — | Pennsylvania |
| 32 | Warren Barto | 1 | Son | — | Pennsylvania |
| 33 | John A. Lotz | 68 | Father-in-law | Farmer | Pennsylvania |
| 34 | Charles Winkle | 39 | Head | Tapsetter | Pennsylvania |
| 35 | Clarabel Winkle | 32 | Wife | — | Pennsylvania |
| 36 | Dorothy Winkle | 14 | Daughter | — | Pennsylvania |
| 37 | Virginia Winkle | 12 | Daughter | — | Pennsylvania |
| 38 | Ella Winkle | 10 | Daughter | — | Pennsylvania |
| 39 | Charles Winkle | 7 | Son | — | Pennsylvania |
| 40 | Alexander Peterson | 40 | Head | Carpenter | 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)