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Grace Parker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Grace Parker across the 1930 and 1940 US Censuses in Allegheny-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 | Allegheny-County, Pennsylvania |
| Surname | Parker |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Industry | 0 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| 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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Theresa Parker | Daughter | — | 8 | ~1932 |
| Theresa Parker | Daughter | — | 21 | ~1919 |
| Grace Parker | Daughter | — | 15 | ~1925 |
| Jack Parker | Son | — | 17 | ~1923 |
| Gertrude Parker | Daughter | — | 20 | ~1920 |
| Thomas Parker | Head | — | 50 | ~1890 |
| Betty Parker | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 5
Allegheny, Pennsylvania · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 15
Allegheny-County, Pennsylvania · implied b. ~1925 — 7 household members
| Surname | Parker |
| Given Name | Grace |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Industry | 0 |
| Highest Grade | S 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 Grace Parker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Grace Parker
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Betty Parker
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Parker
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Parker
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Parker
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Parker
Sibling · 1940 · age 21
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-t0627-03665-00202)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Stanley Marchiwinski | 9 | Son | — | Pennsylvania |
| 42 | Betty Marchiwinski | 6 | Daughter | — | Pennsylvania |
| 43 | Loretta Proskury | 32 | Head | — | Pennsylvania |
| 44 | Leo Proskury | 10 | Son | — | Pennsylvania |
| 45 | Louis Proskury | 7 | Son | — | Pennsylvania |
| 46 | Thomas Parker | 50 | Head | Laborer | Pennsylvania |
| 47 | Theresa Parker | 21 | Daughter | — | Eire |
| 48 | Gertrude Parker | 20 | Daughter | Maid | Pennsylvania |
| 49 | Jack Parker | 17 | Son | — | Pennsylvania |
| 50 | Grace Parker THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 51 | Betty Jane Parker | 9 | Daughter | — | Pennsylvania |
| 52 | Theresa Parker | 8 | Daughter | — | Pennsylvania |
| 53 | Sam Parksamovich | 56 | Head | — | Russia |
| 54 | Alice Parksamovich | 52 | Wife | — | Pennsylvania |
| 55 | Sebastian Torres | 34 | Head | Laborer | Mexico |
| 56 | Sarah Torres | 21 | Wife | — | West Virginia |
| 57 | Charles Torres | 9 | Nephew | — | Pennsylvania |
| 58 | Michael Devitchen | 41 | Head | Rigger | Yugo-Slavia |
| 59 | Mildred Devitchen | 32 | Wife | — | Pennsylvania |
| 60 | Walter Devitchen | 11 | Son | — | Pennsylvania |
| 61 | Ann Marie Devitchen | 8 | Daughter | — | Pennsylvania |
| 62 | Dorothy Devitchen | 3 | Daughter | — | Pennsylvania |
| 63 | Miller Chicker | 41 | Lodger | Machine Operator | Yugo-Slavia |
| 64 | Pete Devitchen | 45 | Lodger | Laborer | Yugo-Slavia |
| 65 | Millie Wainovich | 47 | Head | Laborer | Yugo-Slavia |
| 66 | Mildred Wainovich | 37 | Wife | — | Yugo-Slavia |
| 67 | Nick Wainovich | 17 | Son | — | Pennsylvania |
| 68 | Dorothy Wainovich | 15 | Daughter | — | Pennsylvania |
| 69 | Martha Wainovich | 12 | Daughter | — | Pennsylvania |
| 70 | Millie Wainovich | 4 | Son | — | Pennsylvania |
| 71 | Earl Parker | 27 | Head | Laborer | Pennsylvania |
| 72 | Marie Parker | 21 | Wife | — | Pennsylvania |
| 73 | Eileen Parker | 0 | Daughter | — | Pennsylvania |
| 74 | Eli Hrebnick | 56 | Head | — | Russia |
| 75 | Pete Hrebnick | 42 | Partner | — | Russia |
| 76 | Earl Heintzinger | 35 | Head | Laborer | Pennsylvania |
| 77 | Mildred Heintzinger | 27 | Wife | — | Indiana |
| 78 | Earl Heintzinger | 11 | Son | — | Pennsylvania |
| 79 | Mary Heintzinger | 9 | Daughter | — | Pennsylvania |
| 80 | Steve Doputa | 45 | Lodger | Laborer | Yugo-Slavia |
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)