WB
William Blair — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this William Blair across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Matthew & Margaret — first a son (b.~1907), then head of a 2-person household.
Age 33
b. ~1907
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Blair |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Patton Borough |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Occupation | Laborer |
| Industry | State Highway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 788 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Patton Borough |
| Est. Birth Year | ~1907 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Blair | Head | — | 53 | ~1887 |
| William Blair | Son | — | 33 | ~1907 |
Census Appearances
1920
Cambria, Pennsylvania
Son, age 10
Cambria, Pennsylvania · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cambria, Pennsylvania
Son, age 21
Cambria, Pennsylvania · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Clay work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Son, age 33
Cambria-County, Pennsylvania · implied b. ~1907 — 2 household members
| Surname | Blair |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Patton Borough |
| 1935 Residence (County) | Cambria |
| Occupation | Laborer |
| Industry | State Highway |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 788 |
| 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 William Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Matthew Blair (~0.92 confidence) and mother Margaret Blair (~0.92 confidence) and mother Margaret Blair (~0.92 confidence) and mother Margaret Blair (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Matthew Blair
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Margaret Blair
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Margaret Blair
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Margaret Blair
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Blair
Son · 1940 · age 33 · b. ~1907 · 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 — 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-t0627-03456-00472)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Sunseri | 24 | Head | Shoe Repairer | Pennsylvania |
| 2 | Jane Sunseri | 19 | Wife | — | Pennsylvania |
| 3 | Nelson A. Lowes | 29 | Head | Laborer | Pennsylvania |
| 4 | Jane Lowes | 27 | Wife | — | Pennsylvania |
| 5 | Robert Lowes | 1 | Son | — | Pennsylvania |
| 6 | Frank Haykovich | 60 | Head | Proprietor | Austria |
| 7 | Anna B. Haykovich | 58 | Wife | — | Pennsylvania |
| 8 | Helen M. Haykovich | 18 | Daughter | — | Pennsylvania |
| 9 | Lorraine J. Haykovich | 11 | Daughter | — | Pennsylvania |
| 10 | Raymond J. Biller | 41 | Head | Proprietor | Pennsylvania |
| 11 | Hilda Biller | 39 | Wife | — | Pennsylvania |
| 12 | Eleanor Biller | 18 | Daughter | — | Pennsylvania |
| 13 | Louise Biller | 16 | Daughter | — | Pennsylvania |
| 14 | Jerry Noonan | 56 | Head | Chiropractor | Pennsylvania |
| 15 | Joseph Caretti | 65 | Head | — | Italy |
| 16 | Agustine Caretti | 53 | Wife | — | Pennsylvania |
| 17 | Herman Caretti | 30 | Son | Stone-Cutter | Pennsylvania |
| 18 | Freeman Caretti | 29 | Son | Laborer | Pennsylvania |
| 19 | Louis Caretti | 18 | Son | — | Pennsylvania |
| 20 | John Shannon | 30 | Head | Stone Cutter | Pennsylvania |
| 21 | Ida Shannon | 25 | Wife | — | Pennsylvania |
| 22 | Albert R. Thomas | 28 | Head | Stone Cutter | Pennsylvania |
| 23 | Ruth Thomas | 26 | Wife | — | Pennsylvania |
| 24 | Timothy Thomas | 7 | Son | — | Pennsylvania |
| 25 | Janet Thomas | 2 | Daughter | — | Pennsylvania |
| 26 | Rose Beaver | 72 | Mother-in-law | — | Pennsylvania |
| 27 | Albert Thomas | 73 | Head | — | Pennsylvania |
| 28 | Elizabeth Thomas | 65 | Wife | — | Pennsylvania |
| 29 | Albert Jr. Thomas | 33 | Son | Game Warden | Pennsylvania |
| 30 | Catherine Thomas | 33 | Daughter | — | Pennsylvania |
| 31 | Gerald Thomas | 31 | Son | Auto Mechanic | Pennsylvania |
| 32 | Sarah Thomas | 30 | Daughter | — | Pennsylvania |
| 33 | Clifford Thomas | 29 | Son | Truck Driver | Pennsylvania |
| 34 | Thomas F. Dugan | 52 | Head | Barber | Pennsylvania |
| 35 | Lucy Dugan | 51 | Wife | — | Pennsylvania |
| 36 | Gerald Dugan | 25 | Son | — | Pennsylvania |
| 37 | Helen Dugan | 16 | Daughter | — | Pennsylvania |
| 38 | Bernard Dugan | 7 | Son | — | Pennsylvania |
| 39 | Margaret Blair | 53 | Head | — | Pennsylvania |
| 40 | William Blair THIS PERSON | 33 | Son | Laborer | Pennsylvania |
Pedigree Summary
William
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 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)