DB
Dorothy Butler — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Dorothy Butler across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 7-person household.
Age 15
b. ~1925
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Butler |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| Additional Details | |
| Highest Grade | Yes 1 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1925 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| George Butler | Son | — | 17 | ~1923 |
| Cynthia Butler | Daughter | — | 20 | ~1920 |
| Lorraine Butler | Daughter | — | 14 | ~1926 |
| Leon Butler | Son | — | 3 | ~1937 |
| Dorothy Butler | Daughter | — | 15 | ~1925 |
| Blanche Butler | Head | — | 36 | ~1904 |
| Robert Butler | Son | — | 13 | ~1927 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 5
Middlesex, Massachusetts · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Butler |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | West Indies |
| Mother's Birthplace | West Indies |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 15
Middlesex-County, Massachusetts · implied b. ~1925 — 7 household members
| Surname | Butler |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| Highest Grade | Yes 1 |
| 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 Dorothy Butler across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Butler
Daughter · 1940 · age 15 · b. ~1925 · Massachusetts
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Sibling
George Butler
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Butler
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cynthia Butler
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Butler
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Butler
Sibling · 1940 · age 3
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-t0627-01683-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Powers | 29 | Stepson | — | Massachusetts |
| 2 | George B. Williams | 35 | Head | Gardening | Massachusetts |
| 3 | Alice Williams | 29 | Wife | — | Massachusetts |
| 4 | Margaret E. Williams | 7 | daughter | — | Massachusetts |
| 5 | Marylin Williams | 5 | daughter | — | Massachusetts |
| 6 | Richard Williams | 2 | son | — | Massachusetts |
| 7 | George W. Williams | 1 | son | — | Massachusetts |
| 8 | George W. Rigby | 32 | Head | Pipe Layer | Massachusetts |
| 9 | Mary Rigby | 32 | Wife | — | Massachusetts |
| 10 | George A. Rigby | 1 | son | — | Massachusetts |
| 11 | Patrick Cosgrove | 29 | Head | Gardening | Ireland |
| 12 | Ellen Cosgrove | 28 | Wife | — | Ireland |
| 13 | Patrick Cosgrove | 7 | son | — | Massachusetts |
| 14 | Mary Cosgrove | 5 | daughter | — | Massachusetts |
| 15 | John Cosgrove | 3 | son | — | Massachusetts |
| 16 | Cosgrove | None | — | — | — |
| 17 | Margaret E. Belcher | 48 | Head | — | Massachusetts |
| 18 | Alfred Belcher | 21 | son | New Worker | Massachusetts |
| 19 | Helen Belcher | 16 | daughter | — | Massachusetts |
| 20 | Stephen Belcher | 13 | son | — | Massachusetts |
| 21 | Joseph Lupi | 31 | Head | Proprietor | New Jersey |
| 22 | Augustine Lupi | 26 | Wife | — | Massachusetts |
| 23 | Lauretta Lupi | 2 | daughter | — | Massachusetts |
| 24 | Clara Goddard | 45 | Head | Cleaning | Barbados |
| 25 | Evelyn Bayne | 20 | daughter | — | Massachusetts |
| 26 | Blanche Butler | 36 | Head | — | Barbados |
| 27 | Cynthia Butler | 20 | daughter | House Work | Massachusetts |
| 28 | Lorraine Butler | 14 | daughter | — | Massachusetts |
| 29 | George Butler | 17 | son | — | Massachusetts |
| 30 | Dorothy Butler THIS PERSON | 15 | daughter | — | Massachusetts |
| 31 | Robert Butler | 13 | son | — | Massachusetts |
| 32 | Leon Butler | 3 | son | — | Massachusetts |
| 33 | Rufus Bowen | 44 | Head | New Worker | Barbados |
| 34 | Martha Bowen | 50 | Wife | Janitress Helper | Barbados |
| 35 | Kenneth Bowen | 18 | son | — | Massachusetts |
| 36 | Mildred Bowen | 17 | daughter | — | Massachusetts |
| 37 | Alvin Bowen | 15 | son | — | Massachusetts |
| 38 | Dorothy Bowen | 13 | daughter | — | Massachusetts |
| 39 | George A. Phillips | 62 | Head | Minister | Barbados |
| 40 | Violet Phillips | 38 | Wife | — | Barbados |
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)