WA
William Abbott — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Abbott across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Gertrude & Alfred — first a son (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Abbott |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Melrose city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Clothing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 78 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Melrose City |
| Est. Birth Year | ~1920 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Alfred Abbott | Head | — | 50 | ~1890 |
| Gertrude Abbott | Spouse | — | 51 | ~1889 |
| James Abbott | Son | — | 24 | ~1916 |
| William Abbott | Son | — | 20 | ~1920 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age
Middlesex, Massachusetts · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Abbott |
| Given Name | William F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 20
Middlesex-County, Massachusetts · implied b. ~1920 — 4 household members
| Surname | Abbott |
| Given Name | William F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Melrose city |
| 1935 Residence (County) | Middlesex |
| Occupation | Salesman |
| Industry | Retail Clothing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 78 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Gertrude Abbott (~0.92 confidence) and father Alfred Abbott (~0.92 confidence) and father Frederick Abbott (~0.92 confidence) and mother H Abbott (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Gertrude Abbott
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Alfred Abbott
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Frederick Abbott
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
H Abbott
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Abbott
Son · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
James Abbott
Sibling · 1940 · age 24
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01613-00506)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paulina Cobbens | 27 | Daughter | — | Massachusetts |
| 2 | Raymond Cobbens | 25 | Son | Greaser | Massachusetts |
| 3 | Roger Cobbens | 19 | Son | Clerk | Massachusetts |
| 4 | Edward L. Murray | 43 | Head | Milk Salesman | Massachusetts |
| 5 | Helen M. Murray | 40 | Wife | — | Massachusetts |
| 6 | Edward R. Murray | 18 | Son | Laborer | Massachusetts |
| 7 | Virginia Murray | 11 | Daughter | — | Massachusetts |
| 8 | Alfred C. Abbott | 50 | Head | Manager | Massachusetts |
| 9 | Gertrude E. Abbott | 51 | Wife | — | Massachusetts |
| 10 | James C. Abbott | 24 | Son | — | Massachusetts |
| 11 | William F. Abbott THIS PERSON | 20 | Son | Salesman | Massachusetts |
| 12 | William J. Robinson | 44 | Head | Parole Officer | Massachusetts |
| 13 | Florence Robinson | 39 | Wife | — | Massachusetts |
| 14 | Marion M. Robinson | 40 | Daughter | Salesgirl | Massachusetts |
| 15 | William F. Robinson | 18 | Son | — | Massachusetts |
| 16 | James W. Reeves | 62 | Roomer | Gardener | Massachusetts |
| 17 | Edward Perrine | 38 | Head | Sales Manager | New Hampshire |
| 18 | Margaret Perrine | 37 | Wife | — | North Carolina |
| 19 | Edward S. Perrine | 9 | Son | — | Washington D.C. |
| 20 | Richard Perrine | 8 | Son | — | Massachusetts |
| 21 | Elliott Johnson | 45 | Head | Lawyer | Massachusetts |
| 22 | Mildred Johnson | 45 | Wife | — | New Hampshire |
| 23 | Colburn Robert B. | 39 | Head | Proprietor | Massachusetts |
| 24 | Vivian | 40 | Wife | — | Canada-English |
| 25 | Robert Jr. Vivian | 19 | Son | — | Massachusetts |
| 26 | Everett Vivian | 18 | Son | — | Massachusetts |
| 27 | Dorothy Vivian | 17 | Daughter | — | Massachusetts |
| 28 | Marilyn Vivian | 12 | Daughter | — | Massachusetts |
| 29 | Donald Vivian | 8 | Son | — | Massachusetts |
| 30 | Patricia Vivian | 5 | Daughter | — | Massachusetts |
| 31 | Harry J. Barthell | 52 | Head | Builder | Massachusetts |
| 32 | Elizabeth Barthell | 42 | Wife | — | Canada-English |
| 33 | Norman Barthell | 24 | Son | Accountant | Massachusetts |
| 34 | Harry M. Barthell | 12 | Son | — | Massachusetts |
| 35 | — | None | — | — | — |
| 36 | — | None | — | — | — |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | Samuel Warren | 50 | Head | Fireman | Massachusetts |
| 40 | Ruth M. Warren | 50 | Wife | — | Massachusetts |
Related Census Records
Pedigree Summary
William + 1 sibling
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)