MV
Mary Vaughn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Blair-County, Pennsylvania
Our Model Tree links this Mary Vaughn across the 1930 and 1940 US Censuses in Blair-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Blair-County, Pennsylvania |
| Surname | Vaughn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona |
| 1935 Residence (County) | Blair |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Altoona |
| Est. Birth Year | ~1930 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Vaughn | Son | — | 15 | ~1925 |
| Mildred Vaughn | Daughter | — | 18 | ~1922 |
| Edna Vaughn | Daughter | — | 12 | ~1928 |
| Elwood Vaughn | Son | — | 13 | ~1927 |
| Elwood Vaughn | Head | — | 41 | ~1899 |
| Robert Vaughn | Son | — | 16 | ~1924 |
| Mary Vaughn | Daughter | — | 10 | ~1930 |
| Margaret Vaughn | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Blair, Pennsylvania
Daughter, age 1
Blair, Pennsylvania · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Vaughn |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Age at First Marriage | 1 2/12 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Blair-County, Pennsylvania
Daughter, age 10
Blair-County, Pennsylvania · implied b. ~1930 — 8 household members
| Surname | Vaughn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona |
| 1935 Residence (County) | Blair |
| Highest Grade | No 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 Vaughn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Vaughn
Daughter · 1940 · age 10 · b. ~1930 · Pennsylvania
★ You are viewing this record
Sibling
George Vaughn
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Vaughn
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Vaughn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elwood Vaughn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Vaughn
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 — Blair-County, Pennsylvania
Open full size
1940 US Federal Census — Blair-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03439-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wayne Montgomery | 9 | Son | — | Pennsylvania |
| 2 | John Montgomery | 40 | Head | Car Painter | Pennsylvania |
| 3 | Esther Montgomery | 35 | Wife | — | Pennsylvania |
| 4 | Constance Montgomery | 15 | Daughter | — | Pennsylvania |
| 5 | John Montgomery | 9 | Son | — | Pennsylvania |
| 6 | Andrew S. Pine | 32 | Head | Proprietor | Pennsylvania |
| 7 | Harry L. Pine | 72 | Father | — | Pennsylvania |
| 8 | Annie G. Pine | 47 | Sister | — | Pennsylvania |
| 9 | Martha E. Frosty | 65 | Lodger | — | Pennsylvania |
| 10 | George B. Mcdermott | 71 | Head | — | Pennsylvania |
| 11 | Effie Mcdermott | 60 | Wife | — | Pennsylvania |
| 12 | Paul L. Crawford | 43 | Head | Laborer | Pennsylvania |
| 13 | Pearl H. Crawford | 33 | Wife | — | Pennsylvania |
| 14 | Paul L. Jr. Crawford | 11 | Son | — | Pennsylvania |
| 15 | Jessie Houtter | 56 | Mother-in-law | Seamstress | Pennsylvania |
| 16 | Merl R. Gramley | 43 | Head | Machinist | Pennsylvania |
| 17 | Mary Gramley | 43 | Wife | — | Pennsylvania |
| 18 | Merl R. Jr. Gramley | 16 | Son | — | Pennsylvania |
| 19 | Joan Gramley | 14 | Daughter | — | Pennsylvania |
| 20 | Sara Gramley | 5 | Daughter | — | Pennsylvania |
| 21 | Chester Powell | 49 | Head | Locomotive Fireman | Pennsylvania |
| 22 | Pearl Powell | 40 | Wife | — | Pennsylvania |
| 23 | Robert Powell | 18 | Son | Trucker | Pennsylvania |
| 24 | Nathaniel B. Powell | 86 | Head | — | Pennsylvania |
| 25 | Lillian Powell | 75 | Wife | — | Pennsylvania |
| 26 | William J. Powell | 51 | Son | Crane Operator | Pennsylvania |
| 27 | Elwood Vaughn | 41 | Head | Carpenter | Pennsylvania |
| 28 | Margaret Vaughn | 37 | Wife | — | Pennsylvania |
| 29 | Mildred Vaughn | 18 | Daughter | — | Pennsylvania |
| 30 | Robert Vaughn | 16 | Son | — | Pennsylvania |
| 31 | George Vaughn | 15 | Son | — | Pennsylvania |
| 32 | Elwood Jr. Vaughn | 13 | Son | — | Pennsylvania |
| 33 | Edna May Vaughn | 12 | Daughter | — | Pennsylvania |
| 34 | Mary Vaughn THIS PERSON | 10 | Daughter | — | Pennsylvania |
| 35 | Anna Gilliland | 64 | Head | — | Pennsylvania |
| 36 | Robert Stormy | 55 | Head | Brakeman | Pennsylvania |
| 37 | Myrtle Stormy | 50 | Wife | — | Pennsylvania |
| 38 | Charles A. Ross | 55 | Head | Locomotive Engineer | Pennsylvania |
| 39 | Sadie G. Ross | 47 | Wife | Housekeeper | Pennsylvania |
| 40 | Edwin Parrish | 43 | Head | Stenographer | 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)