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Mary Barker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Barker across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 56 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Waitress |
| Township / Ward | City Of Boston |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Barker | Daughter | — | 20 | ~1920 |
| Mary Barker | Daughter | — | 17 | ~1923 |
| Dorothy Barker | Daughter | — | 18 | ~1922 |
| Helen Barker | Daughter | — | 13 | ~1927 |
| William Barker | Head | — | 43 | ~1897 |
| Charles Barker | Son | — | 9 | ~1931 |
| William Barker | Son | — | 11 | ~1929 |
| John Barker | Son | — | 6 | ~1934 |
| Maud Barker | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 7
Suffolk, Massachusetts · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barker |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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
Suffolk-County, Massachusetts
Daughter, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 9 household members
| Surname | Barker |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 56 |
| 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 Mary Barker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barker
Daughter · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Charles Barker
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Barker
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Barker
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Barker
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Barker
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Barker
Sibling · 1940 · age 13
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01666-00428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Finnerty | 51 | Head | Painter | Eire |
| 2 | Abbie Finnerty | 50 | Wife | — | Eire |
| 3 | John Finnerty | 23 | Son | New Worker | Massachusetts |
| 4 | Mary Finnerty | 18 | Daughter | Housekeeper | Massachusetts |
| 5 | James Finnerty | 20 | Son | Stamper | Massachusetts |
| 6 | Margaret Finnerty | 16 | Daughter | — | Massachusetts |
| 7 | Eileen Finnerty | 14 | Daughter | — | Massachusetts |
| 8 | Edward Finnerty | 13 | Son | — | Massachusetts |
| 9 | Howard Gould | 31 | Son-in-law | Laborer | Massachusetts |
| 10 | Catherine Gould | 25 | Daughter | Waitress | Massachusetts |
| 11 | William Barker | 43 | Head | Sheet Cutter | Massachusetts |
| 12 | Maud Barker | 40 | Wife | — | Massachusetts |
| 13 | Alice Barker | 20 | Daughter | Maid | Massachusetts |
| 14 | Dorothy Barker | 18 | Daughter | Housework | Massachusetts |
| 15 | Mary Barker THIS PERSON | 17 | Daughter | Waitress | Massachusetts |
| 16 | Helen Barker | 13 | Daughter | — | Massachusetts |
| 17 | William Barker | 11 | Son | — | Massachusetts |
| 18 | Charles Barker | 9 | Son | — | Massachusetts |
| 19 | John Barker | 6 | Son | — | Massachusetts |
| 20 | Dennis J. Riley | 51 | Head | Laborer | Eire |
| 21 | Margaret Riley | 50 | Wife | — | Eire |
| 22 | Dennis J. Riley | 13 | Son | — | Massachusetts |
| 23 | Daniel Donnelly | 17 | Half-son | — | Massachusetts |
| 24 | John J. Donnelly | 16 | Half-son | — | Massachusetts |
| 25 | Francis J. Mccoy | 43 | Head | Laborer | Massachusetts |
| 26 | Jeannette Mccoy | 39 | Wife | — | Massachusetts |
| 27 | Andrew J. Mccoy | 15 | Son | Laborer | Massachusetts |
| 28 | Frances M. Mccoy | 14 | Daughter | — | Massachusetts |
| 29 | Margaret Mccoy | 69 | Mother | — | Northern Ireland |
| 30 | James Murtagh | 51 | Brother | Longshoreman | New York |
| 31 | Alfred Brennan | 64 | Head | — | Massachusetts |
| 32 | Bernard Mcdonald | 22 | Head | Painter | England |
| 33 | Edith Mcdonald | 25 | Wife | — | Massachusetts |
| 34 | Thomas Mcdonald | 0 | Son | — | Massachusetts |
| 35 | Mary Whalen | 67 | Head | — | Eire |
| 36 | James Fillabois | 17 | Grandson | New Worker | Massachusetts |
| 37 | William F. Kelly | 46 | Head | Laborer | Massachusetts |
| 38 | Lillian E. Kelly | 44 | Wife | — | Massachusetts |
| 39 | Hugh O'Brien | 40 | Head | Laborer | Massachusetts |
| 40 | Delia O'Brien | 44 | Wife | — | Eire |
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)