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Ruth Gray — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Ruth Gray across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Howard & John — first a daughter (b.~1918), then head of a 7-person household.
Age 12
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| 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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Gray | Daughter | — | 12 | ~1918 |
| Emily Gray | Daughter | — | 9 | ~1921 |
| John Gray | Head | — | 37 | ~1893 |
| Eleanor Gray | Other | — | 34 | ~1896 |
| Mildred Gray | Daughter | — | 13 | ~1917 |
| John Gray | Son | — | 7 | ~1923 |
| La Gray | Daughter | — | 2 | ~1928 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Ruth Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 7 household members
| Surname | Gray |
| Given Name | Ruth |
| 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
Allegheny-County, Pennsylvania
Daughter, age 23
Allegheny-County, Pennsylvania · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grey |
| Given Name | Ruth D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | West View Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | New Writer |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Howard Gray (~0.92 confidence) and father John Gray (~0.92 confidence) and father William Grey (~0.92 confidence) and mother Lydia Grey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Howard Gray
b. ~1872
Source father
● Household
· direct · ~0.92
Father
John Gray
b. ~1893
Source father
● Household
· direct · ~0.92
Father
William Grey
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Lydia Grey
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Gray
Daughter · 1930 · age 12 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Mildred Gray
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gray
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Gray
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
La Gray
Sibling · 1930 · age 2
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1980:0687)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anthony Speer | 47 | Head | Checker | Germany |
| 52 | Mary J. Speer | 39 | Wife-H | — | Germany |
| 53 | Anthony A. Speer | 12 | Son | — | Pennsylvania |
| 54 | Joseph G. Speer | 10 | Son | — | Pennsylvania |
| 55 | William J. Speer | 9 | Son | — | Pennsylvania |
| 56 | Francis G. Speer | 7 | Son | — | Pennsylvania |
| 57 | Aloysius A. Speer | 4 | Son | — | Pennsylvania |
| 58 | Mary A. Speer | 2 | Daughter | — | Pennsylvania |
| 59 | Joseph J. Swalick | 46 | Head | Laborer | Pennsylvania |
| 60 | Mary Swalick | 37 | Wife-H | — | Pennsylvania |
| 61 | Clara Swalick | 16 | Daughter | Typist | Pennsylvania |
| 62 | Andrew Swalick | 9 | Son | — | Pennsylvania |
| 63 | Joseph Swalick | 7 | Son | — | Pennsylvania |
| 64 | Evelyn Swalick | 2 | Daughter | — | Pennsylvania |
| 65 | Harold Clement | 27 | Head | Laborer | New York |
| 66 | Frances Clement | 45 | Wife-H | Day Worker | Pennsylvania |
| 67 | Loretta Clement | 22 | Daughter | Sewer | Pennsylvania |
| 68 | George J. Dietrich | 26 | Head | Laborer | Pennsylvania |
| 69 | Nora Dietrich | 36 | Wife-H | — | Pennsylvania |
| 70 | Marie Dietrich | 15 | Daughter | — | Pennsylvania |
| 71 | John Dietrich | 14 | Son | — | Pennsylvania |
| 72 | Regis Dietrich | 11 | Son | — | Pennsylvania |
| 73 | Daniel Dietrich | 8 | Son | — | Pennsylvania |
| 74 | George Dietrich | 5 | Son | — | Pennsylvania |
| 75 | Dorothy Dietrich | 3 | Daughter | — | Pennsylvania |
| 76 | Elizabeth Thoss | 59 | Head | — | Czechoslovakia |
| 77 | Edward J. Ochs | 34 | Head | Machinist | Pennsylvania |
| 78 | Helen Ochs | 32 | Wife-H | — | Pennsylvania |
| 79 | Dolores Ochs | 13 | Daughter | — | Pennsylvania |
| 80 | Edward Ochs | 11 | Son | — | Pennsylvania |
| 81 | Gilbert Ochs | 8 | Son | — | Pennsylvania |
| 82 | Helen Ochs | 3 | Daughter | — | Pennsylvania |
| 83 | John M. Gray | 37 | Head | Salesman | Pennsylvania |
| 84 | Eleanor Gray | 34 | Wife-H | — | Pennsylvania |
| 85 | Mildred Gray | 13 | Daughter | — | Pennsylvania |
| 86 | Ruth Gray THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 87 | Emily Gray | 9 | Daughter | — | Pennsylvania |
| 88 | John Gray | 7 | Son | — | Pennsylvania |
| 89 | La Verne Gray | 2 | Daughter | — | Pennsylvania |
| 90 | Amelia Gray | 62 | Head | — | Germany |
| 91 | Louis Feldmeier | 35 | Head | Fireman | Pennsylvania |
| 92 | Mary Feldmeier | 35 | Wife-H | — | Pennsylvania |
| 93 | Robert Feldmeier | 14 | Son | — | Pennsylvania |
| 94 | Margaret Feldmeier | 13 | Daughter | — | Pennsylvania |
| 95 | Florence Feldmeier | 11 | Daughter | — | Pennsylvania |
| 96 | Cecilia Feldmeier | 9 | Daughter | — | Pennsylvania |
| 97 | Rita Feldmeier | 6 | Daughter | — | Pennsylvania |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
Pedigree Summary
Ruth + 4 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)