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Mary Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Indiana-County, Pennsylvania
Our Model Tree links this Mary Gray across the 1920, 1930 and 1940 US Censuses in Indiana-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Bayard & Bayard — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Indiana-County, Pennsylvania |
| Surname | Gray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Young Twp |
| 1935 Residence (County) | Indiana |
| Additional Details | |
| Occupation | Clerical |
| Industry | Gas filling station |
| Class of Worker | PW |
| Income (1939) | 52 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerical |
| Township / Ward | Young Twp |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Gray | Daughter | — | 13 | ~1927 |
| Mary Gray | Daughter | — | 22 | ~1918 |
| Bayard Gray | Head | — | 51 | ~1889 |
| Robert Gray | Son | — | 16 | ~1924 |
| Nannie Gray | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Indiana, Pennsylvania
Daughter, age 2
Indiana, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Indiana, Pennsylvania
Daughter, age 12
Indiana, Pennsylvania · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Indiana-County, Pennsylvania
Daughter, age 22
Indiana-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | Gray |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Young Twp |
| 1935 Residence (County) | Indiana |
| Occupation | Clerical |
| Industry | Gas filling station |
| Class of Worker | PW |
| Income (1939) | 52 |
| Highest Grade | H 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 Mary Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bayard Gray (~0.92 confidence) and father Bayard Gray (~0.92 confidence) and father Hazard Gray (~0.92 confidence) and mother Nannie Gray (~0.92 confidence) and mother Hattie Gray (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bayard Gray
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Bayard Gray
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Hazard Gray
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Nannie Gray
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Hattie Gray
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Gray
Daughter · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Robert Gray
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Gray
Sibling · 1940 · age 13
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 — Indiana-County, Pennsylvania
Open full size
1940 US Federal Census — Indiana-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03518-00807)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mona M. Stiver | 12 | Daughter | — | Pennsylvania |
| 2 | Newton M. Armstrong | 73 | Head | Farmer | Pennsylvania |
| 3 | Sarena J. Armstrong | 71 | Wife | — | Pennsylvania |
| 4 | Elizabeth M. Armstrong | 47 | Daughter | — | Pennsylvania |
| 5 | Thomas N. Armstrong | 21 | Son | Farmer | Pennsylvania |
| 6 | Ross A. Wilson | 38 | Head | Farmer | Pennsylvania |
| 7 | Mildred Wilson | 35 | Wife | — | Pennsylvania |
| 8 | Evelyn E. Wilson | 12 | Daughter | — | Pennsylvania |
| 9 | Phyllis Wilson | 6 | Daughter | — | Pennsylvania |
| 10 | Alma N. Wilson | 59 | Head | — | Pennsylvania |
| 11 | Marie B. Wilson | 30 | Daughter | Teacher | Pennsylvania |
| 12 | Harry B. Smith | 65 | Head | Farmer | Pennsylvania |
| 13 | Ella E. Smith | 71 | Wife | — | Pennsylvania |
| 14 | John C. Smith | 55 | Head | Farmer | Pennsylvania |
| 15 | Rossie E. Smith | 51 | Wife | — | Pennsylvania |
| 16 | Louis R. Smith | 17 | Daughter | — | Pennsylvania |
| 17 | Leonard S. White | 50 | Head | Carpenter | Pennsylvania |
| 18 | Margaret L. White | 48 | Wife | — | Pennsylvania |
| 19 | Hazel E. White | 14 | Daughter | — | Pennsylvania |
| 20 | Emogene C. White | 12 | Daughter | — | Pennsylvania |
| 21 | Anna Belle White | 10 | Daughter | — | Pennsylvania |
| 22 | Dorothy L. White | 8 | Daughter | — | Pennsylvania |
| 23 | Bayard A. Gray | 51 | Head | Farmer | Pennsylvania |
| 24 | Nannie R. Gray | 49 | Wife | — | Pennsylvania |
| 25 | Mary E. Gray THIS PERSON | 22 | Daughter | Clerical | Pennsylvania |
| 26 | Robert L. Gray | 16 | Son | — | Pennsylvania |
| 27 | Anna L. Gray | 13 | Daughter | — | Pennsylvania |
| 28 | Elmer E. Hutton | 31 | Head | Carpenter | Pennsylvania |
| 29 | Anna Hutton | 27 | Wife | — | Pennsylvania |
| 30 | Elmer T. Hutton | 9 | Son | — | Pennsylvania |
| 31 | David R. Hutton | 8 | Son | — | Pennsylvania |
| 32 | Richard L. Hutton | 6 | Son | — | Pennsylvania |
| 33 | James A. Hutton | 5 | Son | — | Pennsylvania |
| 34 | Barbara A. Hutton | 4 | Daughter | — | Pennsylvania |
| 35 | Mary J. Hutton | 2 | Daughter | — | Pennsylvania |
| 36 | Bradley Hutton | 0 | Son | — | Pennsylvania |
| 37 | Louis Blasutig | 59 | Head | Mason | Italy |
| 38 | Julia Blasutig | 52 | Wife | — | Italy |
| 39 | Samuel C. Dunmire | 25 | Head | Laborer | Pennsylvania |
| 40 | Irene E. Dunmire | 42 | Wife | — | Pennsylvania |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 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)