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Barbara Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Barbara Brown across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Brown |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | North Billerica |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Stenographer |
| Industry | National Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | North Billerica |
| Est. Birth Year | ~1921 |
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 Barbara | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Brown | Daughter | — | 20 | ~1920 |
| Barbara Brown | Daughter | — | 19 | ~1921 |
| Shirley Brown | Daughter | — | 17 | ~1923 |
| Constance Brown | Daughter | — | 12 | ~1928 |
| John Brown | Head | — | 45 | ~1895 |
| Thomas Brown | Son | — | 14 | ~1926 |
| Mildred Brown | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 9
Middlesex, Massachusetts · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 19
Middlesex-County, Massachusetts · implied b. ~1921 — 7 household members
| Surname | Brown |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | North Billerica |
| 1935 Residence (County) | Middlesex |
| Occupation | Stenographer |
| Industry | National Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 700 |
| Highest Grade | Hs 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 Barbara Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Brown
Daughter · 1940 · age 19 · b. ~1921 · Massachusetts
★ You are viewing this record
Sibling
Marjorie Brown
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Brown
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Constance Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Brown
Sibling · 1940 · age 14
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-t0627-01603-00380)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Le Pecheur | 45 | Head | Meat Cutter | Massachusetts |
| 2 | Gertrude Le Pecheur | 40 | Wife | — | Massachusetts |
| 3 | William Le Pecheur | 17 | Son | — | Massachusetts |
| 4 | John Le Pecheur | 16 | Son | — | Massachusetts |
| 5 | John Brown | 45 | Head | Civil Engineer | Massachusetts |
| 6 | Mildred Brown | 43 | Wife | — | Massachusetts |
| 7 | Marjorie Brown | 20 | Daughter | Nurse | Massachusetts |
| 8 | Barbara Brown THIS PERSON | 19 | Daughter | Stenographer | Massachusetts |
| 9 | Shirley Brown | 17 | Daughter | — | Massachusetts |
| 10 | Thomas Brown | 14 | Son | — | Massachusetts |
| 11 | Constance Brown | 12 | Daughter | — | Massachusetts |
| 12 | Newell A. Richie | 43 | Head | Mailman | Massachusetts |
| 13 | Dorothy K. Richie | 40 | Wife | — | Massachusetts |
| 14 | James W. Richie | 15 | Son | — | Massachusetts |
| 15 | Jennie Chambers | 74 | Head | — | Scotland |
| 16 | Helen I. Chambers | 43 | Daughter | Bookkeeper | Massachusetts |
| 17 | Paul Albertini | 36 | Head | Teacher | Massachusetts |
| 18 | Alice Albertini | 36 | Wife | — | Massachusetts |
| 19 | Joanne Albertini | 1 | Daughter | — | Massachusetts |
| 20 | James M. Lavina | 59 | Head | Foreman | Massachusetts |
| 21 | Bertha Lavina | 58 | Wife | — | Massachusetts |
| 22 | Henry Sandin | 41 | Head | Designer | Massachusetts |
| 23 | Adora Sandin | 38 | Wife | — | New Hampshire |
| 24 | George Nadeau | 49 | Head | Oiler | New Hampshire |
| 25 | Gertrude L. Nadeau | 51 | Wife | — | Massachusetts |
| 26 | Elizabeth G. Nadeau | 24 | Daughter | Assembler | Massachusetts |
| 27 | Joseph A. Brown | 42 | Head | Carder | Massachusetts |
| 28 | Edith Brown | 46 | Wife | — | New Hampshire |
| 29 | Morris A. Brown | 11 | Son | — | Massachusetts |
| 30 | Fred Means | 71 | Head | Laborer | England |
| 31 | Emeline Means | 71 | Wife | — | England |
| 32 | Daniel Mcsweeney | 50 | Head | Store Owner | Irish Free State |
| 33 | Katherine Mcsweeney | 35 | Wife | — | Massachusetts |
| 34 | Margaret Mcsweeney | 3 | Daughter | — | Massachusetts |
| 35 | James Gannon | 53 | Head | Boss Finisher | Massachusetts |
| 36 | Maude Gannon | 47 | Wife | — | Massachusetts |
| 37 | George Freeman | 47 | Head | Mechanic | Massachusetts |
| 38 | Mary C. Freeman | 45 | Wife | — | Massachusetts |
| 39 | Arline Freeman | 18 | Daughter | — | Massachusetts |
| 40 | Barbara Freeman | 13 | Daughter | — | Massachusetts |
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)