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Mary Bartlett — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this Mary Bartlett across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Bartlett |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lynn City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Bartlett | Daughter | — | 17 | ~1923 |
| Edward Bartlett | Son | — | 19 | ~1921 |
| John Bartlett | Son | — | 14 | ~1926 |
| Harry Bartlett | Head | — | 51 | ~1889 |
| Mildred Bartlett | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Essex, Massachusetts
Daughter, age 7
Essex, Massachusetts · implied b. ~1923 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bartlett |
| Given Name | Marjorie R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Daughter, age 17
Essex-County, Massachusetts · implied b. ~1923 — 5 household members
| Surname | Bartlett |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lynn City |
| 1935 Residence (County) | Essex |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| 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 Bartlett across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bartlett
Daughter · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Edward Bartlett
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Bartlett
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01695-00892)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond A. Phillips | 54 | Head | Linotype Operator | Massachusetts |
| 2 | Edith E. Phillips | 49 | Wife | — | New York |
| 3 | Harvey W. Phillips | 22 | Son | Poster Artist Apprentice | New York |
| 4 | Donald Phillips | 20 | Son | Clerk | Massachusetts |
| 5 | Earl F. Phillips | 15 | Son | — | Massachusetts |
| 6 | Paul Eilenberger | 47 | Head | Last Maker | Massachusetts |
| 7 | Lillian D. Eilenberger | 48 | Wife | School Teacher | Massachusetts |
| 8 | Isaac Meriel | 47 | Brother-in-law | Salesman | Massachusetts |
| 9 | Frank G. Scott | 59 | Head | Assistant Manager | Canada English |
| 10 | Sadie Scott | 56 | Wife | — | Massachusetts |
| 11 | Bessie Hingley | 61 | Housekeeper | Housekeeper | Canada English |
| 12 | Lester B. Breed | 43 | Head | Tariff Compiler | Massachusetts |
| 13 | Beatrice A. Breed | 39 | Wife | — | Massachusetts |
| 14 | Barbara A. Breed | 7 | Daughter | — | Massachusetts |
| 15 | Sarah J. Bailey | 71 | Head | — | Massachusetts |
| 16 | Annie G. Bailey | 64 | Sister | Publisher | Massachusetts |
| 17 | Harry Bartlett | 51 | Head | Engineer | New Hampshire |
| 18 | Mildred D. Bartlett | 41 | Wife | — | Massachusetts |
| 19 | Edward Bartlett | 19 | Son | — | Massachusetts |
| 20 | Mary L. Bartlett THIS PERSON | 17 | Daughter | — | Massachusetts |
| 21 | John Bartlett | 14 | Son | — | New Hampshire |
| 22 | Laurence Swann | 35 | Head | Supervisor | Massachusetts |
| 23 | Gertrude Swann | 34 | Wife | — | Massachusetts |
| 24 | Laurence Jr. Swann | 13 | Son | — | Massachusetts |
| 25 | Robert Swann | 10 | Son | — | Massachusetts |
| 26 | Nancy Swann | 7 | Daughter | — | Massachusetts |
| 27 | Walter F. Karahal | 64 | Head | Meat Cutter | Massachusetts |
| 28 | H. May Karahal | 63 | Wife | — | Massachusetts |
| 29 | Oscar W. Nelson | 40 | Head | Field Worker | Massachusetts |
| 30 | Mildred M. Nelson | 36 | Wife | — | Massachusetts |
| 31 | Robert G. Nelson | 1 | Son | — | Massachusetts |
| 32 | Jessie Buckley | 30 | Mother-in-law | Stenographer | Massachusetts |
| 33 | Gordon Russell | 44 | Head | Salesman | New Hampshire |
| 34 | Catherine D. Russell | 39 | Wife | — | Massachusetts |
| 35 | Pauline Russell | 20 | Daughter | — | Connecticut |
| 36 | William Russell | 16 | Son | — | Connecticut |
| 37 | Edward Russell | 13 | Son | — | Massachusetts |
| 38 | Elizabeth C. Key | 63 | Head | Housework | Maryland |
| 39 | Chester E. Harper | 14 | Grandson | — | Massachusetts |
| 40 | Helen A. Burnes | 64 | Cousin | — | Maryland |
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)