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Ruth Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Ruth Gray across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Estella — first a spouse (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon Twp |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mt Lebanon Twp |
| Est. Birth Year | ~1900 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Wesley Gray | Head | — | 38 | ~1902 |
| Ruth Gray | Spouse | — | 40 | ~1900 |
| Robert Gray | Son | — | 11 | ~1929 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 20
Allegheny, Pennsylvania · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 30
Allegheny, Pennsylvania · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 40
Allegheny-County, Pennsylvania · implied b. ~1900 — 3 household members
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon Twp |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | Hs 4 |
| 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 Ruth Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Gray (~0.92 confidence) and mother Estella Gray (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Gray
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Estella Gray
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Gray
Spouse · 1940 · age 40 · b. ~1900 · Pennsylvania
★ You are viewing this record
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
32 people indexed on this census page (nara:1940:m-t0627-03411-00596)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Taylor | 81 | Head | Retired | Canada |
| 2 | Sarah Taylor | 72 | Wife | — | West Virginia |
| 3 | Theodora Kelly | 40 | Son-in-law | Clerk Office | Pennsylvania |
| 4 | Nettie Kelly | 38 | Daughter | — | Pennsylvania |
| 5 | Sarah A. Croco | 70 | Lodger | Beauty Shop Oper | Pennsylvania |
| 6 | Charles S. Courtney | 57 | Head | Janitor | Pennsylvania |
| 7 | Laura Courtney | 40 | Wife | — | Pennsylvania |
| 8 | Charles S. Jr. Courtney | 20 | Son | — | Pennsylvania |
| 9 | Lillian Courtney | 18 | Daughter | — | Pennsylvania |
| 11 | Dempsey Bruce | 46 | Head | Salesman | Pennsylvania |
| 12 | Julia Bruce | 44 | Wife | — | Pennsylvania |
| 13 | Dempsey Jr. Bruce | 13 | Son | — | Pennsylvania |
| 14 | William Jones James | 49 | Head | Salesman Builder Supplies | Pennsylvania |
| 15 | Lillian James | 48 | Wife | — | Pennsylvania |
| 16 | Harold R. Allebach | 38 | Head | Adv. Sales. | Pennsylvania |
| 17 | Marie Allebach | 36 | Wife | — | Pennsylvania |
| 18 | Marion Allebach | 15 | Daughter | — | Pennsylvania |
| 21 | Herbert R. Litten | 45 | Head | Accountant | Ohio |
| 22 | Kathryn Litten | 35 | Wife | — | Pennsylvania |
| 23 | Judith Ann Litten | 1 | Daughter | — | Pennsylvania |
| 24 | Wesley H. Gray | 38 | Head | Salesman | New Jersey |
| 25 | Ruth Gray THIS PERSON | 40 | Wife | — | Pennsylvania |
| 26 | Robert Gray | 11 | Son | — | Pennsylvania |
| 27 | Wilson E. Sellers | 52 | Head | Salesman | Pennsylvania |
| 28 | Marjorie Sellers | 47 | Wife | — | Pennsylvania |
| 29 | Willard Means | 45 | Head | Chemist | Pennsylvania |
| 30 | Eleanor Means | 35 | Wife | — | Pennsylvania |
| 31 | Marjorie Means | 12 | Daughter | — | Pennsylvania |
| 32 | George Goodykoontz | 27 | Head | Real Estate | Pennsylvania |
| 33 | Dorothy Goodykoontz | 27 | Wife | — | New York |
| 34 | Elon Ross | 45 | Head | Engineer | New York |
| 35 | Dora Ross | 30 | Wife | — | Pennsylvania |
Pedigree Summary
Ruth
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)