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Mary Baird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Mary Baird across the 1930 and 1940 US Censuses in Cambria-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 | Cambria-County, Pennsylvania |
| Surname | Baird |
| Given Name | Mary Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Cresson Borough |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Cresson Borough |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| William Baird | Son | — | 34 | ~1906 |
| Mary Baird | Daughter | — | 15 | ~1925 |
| Russell Baird | Son | — | 26 | ~1914 |
| J Baird | Head | — | 62 | ~1878 |
| Robert Baird | Son | — | 19 | ~1921 |
| Andrew Baird | Son | — | 13 | ~1927 |
| Frances Baird | Spouse | — | 59 | ~1881 |
Census Appearances
1930
Cambria, Pennsylvania
Daughter, age 5
Cambria, Pennsylvania · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baird |
| Given Name | Mary Jean |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Daughter, age 15
Cambria-County, Pennsylvania · implied b. ~1925 — 7 household members
| Surname | Baird |
| Given Name | Mary Jean |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Cresson Borough |
| 1935 Residence (County) | Cambria |
| Class of Worker | 0 |
| Highest Grade | H-1 |
| 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 Baird across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Baird
Daughter · 1940 · age 15 · b. ~1925 · Pennsylvania
★ You are viewing this record
Sibling
Andrew Baird
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Baird
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Baird
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Baird
Sibling · 1940 · age 34
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03452-00136)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Wierse | 14 | Son | — | Pennsylvania |
| 2 | James Wierse | 9 | Son | — | Pennsylvania |
| 3 | Marian Wierse | 8 | Daughter | — | Pennsylvania |
| 4 | Robert Wierse | 5 | Son | — | Pennsylvania |
| 5 | J. N. Baird | 62 | Head | Baggageman | Pennsylvania |
| 6 | Frances Baird | 59 | Wife | — | Pennsylvania |
| 7 | William J. Baird | 34 | Son | Laborer | Pennsylvania |
| 8 | Russell Baird | 26 | Son | Office Clerk | Pennsylvania |
| 9 | Robert Baird | 19 | Son | — | Pennsylvania |
| 10 | Mary Jean Baird THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 11 | Andrew Nelson Baird | 13 | Son | — | Pennsylvania |
| 12 | G. A. Lang | 51 | Head | Clerk Operator | Pennsylvania |
| 13 | Irene Lang | 45 | Wife | — | Pennsylvania |
| 14 | George E. Lang | 21 | Son | — | Pennsylvania |
| 15 | Mary Eng. Lang | 17 | Daughter | — | Pennsylvania |
| 16 | James Warner | 45 | Head | — | Pennsylvania |
| 17 | Vera Warner | 34 | Wife | — | Pennsylvania |
| 18 | Wanda Warner | 12 | Daughter | — | Pennsylvania |
| 19 | Betty Lou Warner | 10 | Daughter | — | Pennsylvania |
| 20 | Velma Warner | 8 | Daughter | — | Pennsylvania |
| 21 | Lambert Jr. Warner | 3 | Son | — | Pennsylvania |
| 22 | E. J. Lineberger | 45 | Head | Principal | Pennsylvania |
| 23 | Bertha C. Lineberger | 36 | Wife | — | Pennsylvania |
| 24 | John Lineberger | 4 | Son | — | Pennsylvania |
| 25 | Edward Bramer | 37 | Head | Theater Manager | Pennsylvania |
| 26 | Louise Bramer | 34 | Wife | — | Pennsylvania |
| 27 | Ruth Bramer | 14 | Daughter | — | Pennsylvania |
| 28 | Thomas Bramer | 10 | Son | — | Pennsylvania |
| 29 | Howard D. Brinkley | 32 | Head | Meat Manager | Pennsylvania |
| 30 | Helene Brinkley | 32 | Wife | — | Pennsylvania |
| 31 | Sheldon Brinkley | 3 | Son | — | Pennsylvania |
| 32 | Leslie C. Gates | 48 | Head | Mining Engineer | Pennsylvania |
| 33 | Georgia Gates | 49 | Wife | — | Pennsylvania |
| 34 | James Gates | 18 | Son | — | Pennsylvania |
| 35 | Mary Jane Gates | 10 | Daughter | — | Pennsylvania |
| 36 | Robert Lantz | 45 | Head | Clerk | Pennsylvania |
| 37 | Alene Lantz | 45 | Wife | — | Pennsylvania |
| 38 | Edna Mae Lantz | 19 | Daughter | — | Pennsylvania |
| 39 | Camilla Lantz | 15 | Daughter | — | Pennsylvania |
| 40 | Samuel Runzo | 33 | Head | Salesman | 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)