WB
William Barr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this William Barr across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Barr |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1923 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Margaret Barr | Daughter | — | 10 | ~1930 |
| James Barr | Son | — | 19 | ~1921 |
| William Barr | Head | — | 50 | ~1890 |
| William Barr | Son | — | 17 | ~1923 |
| John Barr | Son | — | 14 | ~1926 |
| Agnes Barr | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 7
Philadelphia, Pennsylvania · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1921 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Philadelphia-County, Pennsylvania
Son, age 17
Philadelphia-County, Pennsylvania · implied b. ~1923 — 6 household members
| Surname | Barr |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Barr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Barr
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
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Sibling
Margaret Barr
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Barr
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Barr
Sibling · 1940 · age 19
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03728-00368)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Leopold | 10 | Son | — | Penna |
| 2 | Edwin J Leopold | 7 | Son | — | Penna |
| 3 | Margaret Leopold | 4 | Daughter | — | Penna |
| 4 | Frederick Kalnig | 40 | Head | Bus Operator | Penna |
| 5 | Janet Kalnig | 40 | Wife | — | Wilmington |
| 6 | Frederick Jr Kalnig | 16 | Son | — | Penna |
| 7 | Margaret Kalnig | 12 | Daughter | — | Penna |
| 8 | John Kalnig | 10 | Son | — | Penna |
| 9 | Alice Kalnig | 5 | Daughter | — | Penna |
| 10 | Leroy Saylor | 46 | Head | Pressman | Penna |
| 11 | Clara Saylor | 48 | Wife | — | Penna |
| 12 | Russell Saylor | 21 | Son | Helper | Penna |
| 13 | Gladys Saylor | 19 | Daughter | — | Penna |
| 14 | Theodore Saylor | 17 | Son | — | Penna |
| 15 | Albert Truyne | 26 | Head | Engineer | Penna |
| 16 | Catherine Truyne | 26 | Wife | — | Penna |
| 17 | Gail Truyne | 1 | Daughter | — | Penna |
| 18 | John Hopkins | 36 | Boarder | — | Penna |
| 19 | Edwin Trittle | 40 | Head | Engineer | Penna |
| 20 | Matilda Trittle | 38 | Wife | Knitter | Penna |
| 21 | John Trittle | 16 | Son | — | Penna |
| 22 | Elizabeth Trittle | 12 | Daughter | — | Penna |
| 23 | Albert Trittle | 8 | Son | — | Penna |
| 24 | William Barr | 50 | Head | Machinist | Scotland |
| 25 | Agnes Barr | 44 | Wife | — | Scotland |
| 26 | James Barr | 19 | Son | — | Scotland |
| 27 | William Jr Barr THIS PERSON | 17 | Son | — | Scotland |
| 28 | John Barr | 14 | Son | — | Penna |
| 29 | Margaret Barr | 10 | Daughter | — | Penna |
| 30 | Nelson Taylor | 31 | Head | Painter | Penna |
| 31 | Esther Taylor | 28 | Wife | — | Penna |
| 32 | Louisa Taylor | 6 | Daughter | — | Penna |
| 33 | John Taylor | 5 | Son | — | Penna |
| 34 | Margaret Taylor | 3 | Daughter | — | Penna |
| 35 | John Keller | 34 | Head | Painter | Penna |
| 36 | Grace Keller | 33 | Wife | — | Penna |
| 37 | Margaret Keller | 8 | Daughter | — | Penna |
| 38 | John Jr Keller | 6 | Son | — | Penna |
| 39 | Alice Keller | 4 | Daughter | — | Penna |
| 40 | Gladys Keller | 1 | Daughter | — | Penna |
Related Census Records
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)