JB
John Baird — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fayette-County, Pennsylvania
Our Model Tree links this John Baird across the 1930 and 1940 US Censuses in Fayette-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 7-person household.
Age 40
b. ~1900
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Pennsylvania |
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Uniontown |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 80 |
| Income (1939) | 200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Farmer |
| Township / Ward | North Union Township |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Robert Baird | Son | — | 2 | ~1938 |
| Clarence Baird | Son | — | 11 | ~1929 |
| Robert Yunger | Other | — | 68 | ~1872 |
| Margaret Baird | Spouse | — | 36 | ~1904 |
| John Baird | Head | — | 40 | ~1900 |
| Lois Baird | Daughter | — | 11 | ~1929 |
| Josiah Baird | Son | — | 4 | ~1936 |
Census Appearances
1930
Fayette, Pennsylvania
Son, age 29
Fayette, Pennsylvania · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Burd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | laborer |
| Industry | Pipe mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Fayette-County, Pennsylvania
Head, age 40
Fayette-County, Pennsylvania · implied b. ~1900 — 7 household members
| Surname | Baird |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Uniontown |
| 1935 Residence (County) | Fayette |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 80 |
| Income (1939) | 200 |
| Highest Grade | No 8 |
| 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 John Baird across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Baird
Head · 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 — Fayette-County, Pennsylvania
Open full size
1940 US Federal Census — Fayette-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03506-00256)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Boyd J. Vail | 12 | Son | — | Pennsylvania |
| 2 | Lloyd H. Vail | 12 | Son | — | Pennsylvania |
| 3 | Patricia J. Vail | 11 | Daughter | — | Pennsylvania |
| 4 | Amzi Vail | 68 | Head | Farmer | Pennsylvania |
| 5 | Stella Vail | 66 | Wife | — | Iowa |
| 6 | Robert E. Vail | 34 | Son | Farm Hand | Pennsylvania |
| 7 | Jane C. Vail | 37 | Daughter-in-law | — | Pennsylvania |
| 8 | Robert E. Jr. Vail | 14 | Grandson | — | Pennsylvania |
| 9 | Donald M. Vail | 9 | Grandson | — | Pennsylvania |
| 10 | William H. Smith | 62 | Head | Farmer | Pennsylvania |
| 11 | Jenett Smith | 43 | Wife | — | Pennsylvania |
| 12 | William M. Smith | 23 | Son | Labor | Pennsylvania |
| 13 | Alice F. Smith | 20 | Daughter | New Worker | Pennsylvania |
| 14 | Mary K. Smith | 17 | Daughter | — | Pennsylvania |
| 15 | Kenneth D. Smith | 16 | Son | New Worker | Pennsylvania |
| 16 | Inez D. Smith | 9 | Daughter | — | Pennsylvania |
| 17 | Iris R. Smith | 1 | Son | — | Pennsylvania |
| 18 | William De Caro | 30 | Head | Labor | Pennsylvania |
| 19 | Mary De Caro | 29 | Wife | — | Pennsylvania |
| 20 | Patricia De Caro | 3 | Daughter | — | Pennsylvania |
| 21 | John Baird THIS PERSON | 40 | Head | Farmer | Pennsylvania |
| 22 | Margaret Baird | 36 | Wife | — | Pennsylvania |
| 23 | Clarence M. Baird | 11 | Son | — | Pennsylvania |
| 24 | Lois L. Baird | 11 | Daughter | — | Pennsylvania |
| 25 | Josiah E. Baird | 4 | Son | — | Pennsylvania |
| 26 | Robert A. Baird | 2 | Son | — | Pennsylvania |
| 27 | Robert L. Yunger | 68 | Lodger | Farm Hand | Pennsylvania |
| 28 | Frank Miller | 28 | Head | Miner | Pennsylvania |
| 29 | Emma Miller | 30 | Wife | — | Italy |
| 30 | Orville Modispaw | 39 | Head | Labor | West Virginia |
| 31 | Nora Modispaw | 24 | Wife | — | Pennsylvania |
| 32 | Gerald A. Modispaw | 0 | Son | — | Pennsylvania |
| 33 | James Dominick | 26 | Head | Labor | Pennsylvania |
| 34 | Loretta Dominick | 22 | Wife | — | Pennsylvania |
| 35 | Rose Mary Dominick | 2 | Daughter | — | Pennsylvania |
| 36 | Harvey Modispaw | 36 | Head | Labor | West Virginia |
| 37 | Ruth Modispaw | 23 | Wife | — | Pennsylvania |
| 38 | Janet Modispaw | 3 | Daughter | — | Ohio |
| 39 | Janice Modispaw | 3 | Daughter | — | Ohio |
| 40 | Mike D'Aquila | 6 | Head | Labor | 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)