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William Abbott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Abbott across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | G 6 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1927 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Samuel Abbott | Head | — | 39 | ~1901 |
| Robert Abbott | Son | — | 10 | ~1930 |
| Frank Abbott | Son | — | 17 | ~1923 |
| Catherine Abbott | Spouse | — | 35 | ~1905 |
| Samuel Abbott | Son | — | 11 | ~1929 |
| Geraldine Abbott | Daughter | — | 2 | ~1938 |
| Carmella Abbott | Daughter | — | 16 | ~1924 |
| Lois Abbott | Daughter | — | 4 | ~1936 |
| William Abbott | Son | — | 13 | ~1927 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 2
Allegheny, Pennsylvania · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 13
Allegheny-County, Pennsylvania · implied b. ~1927 — 9 household members
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | G 6 |
| 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 Abbott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Abbott
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Robert Abbott
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Abbott
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carmella Abbott
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Abbott
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Abbott
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Abbott
Sibling · 1940 · age 4
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03666-00554)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lawrence Snyder | 8 | Son | — | Pennsylvania |
| 42 | Paul Snyder | 4 | Son | — | Pennsylvania |
| 43 | Earl Shaffer | 44 | Head | — | Pennsylvania |
| 44 | Anna Shaffer | 40 | Wife | Seamstress | Pennsylvania |
| 45 | Anthony Klavon | 47 | Head | Woodman | Pennsylvania |
| 46 | John Manion | 54 | Head | Laborer | Pennsylvania |
| 47 | Rose Manion | 51 | Wife | — | Pennsylvania |
| 48 | Edward Manion | 30 | Son | Laborer | Pennsylvania |
| 49 | Ralph Manion | 20 | Son | Laborer | Pennsylvania |
| 50 | Catherine Lavelle | 33 | Daughter | — | Pennsylvania |
| 51 | Rose Marie Lavelle | 14 | Daughter | — | Pennsylvania |
| 52 | Jean Lavelle | 12 | Daughter | — | Pennsylvania |
| 53 | Lucille Lavelle | 10 | Daughter | — | Pennsylvania |
| 54 | Francis Lavelle | 7 | Son | — | Pennsylvania |
| 55 | Betty Lavelle | 5 | Daughter | — | Pennsylvania |
| 56 | Samuel Abbott | 39 | Head | Fireman | Pennsylvania |
| 57 | Catherine Abbott | 35 | Wife | — | Italy |
| 58 | Frank Abbott | 17 | Son | Laborer | Pennsylvania |
| 59 | Carmella Abbott | 16 | Daughter | — | Pennsylvania |
| 60 | William Abbott THIS PERSON | 13 | Son | — | Pennsylvania |
| 61 | Samuel Jr Abbott | 11 | Son | — | Pennsylvania |
| 62 | Robert Abbott | 10 | Son | — | Pennsylvania |
| 63 | Lois Jean Abbott | 4 | Daughter | — | Pennsylvania |
| 64 | Geraldine Abbott | 2 | Daughter | — | Pennsylvania |
| 65 | James Abbott | 32 | Head | Truck Driver | Pennsylvania |
| 66 | Lucy Abbott | 32 | Wife | — | Pennsylvania |
| 67 | Too Many Spaces For Abbott Abbott | None | — | — | — |
| 68 | John Cochrane | 29 | Head | Laborer | Pennsylvania |
| 69 | Elsie Cochrane | 24 | Wife | — | New York |
| 70 | Patricia Cochrane | 1 | Daughter | — | Pennsylvania |
| 71 | William Markiewicz | 46 | Head | Attendant | Pennsylvania |
| 72 | William Markiewicz | 21 | Son | House Man | Pennsylvania |
| 73 | Dorothy Markiewicz | 17 | Daughter | — | Pennsylvania |
| 74 | Grace Markiewicz | 14 | Daughter | — | Pennsylvania |
| 75 | Paul Schabele | 47 | Head | Roofing | Kansas |
| 76 | Mary Schabele | 37 | Wife | — | Pennsylvania |
| 77 | Marian Schabele | 2 | Daughter | — | Pennsylvania |
| 78 | Mary Mckenna | 61 | Head | — | Pennsylvania |
| 79 | James Mckenna | 26 | Son | Maintenance Man | Pennsylvania |
| 80 | Alfred Vogelsberger | 32 | Head | Mailer | 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)