MD
Mary Doherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Doherty across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Doherty |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H-4 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1922 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Theresa Doherty | Daughter | — | 9 | ~1931 |
| Mary Doherty | Spouse | — | 46 | ~1894 |
| Beatrice Doherty | Daughter | — | 16 | ~1924 |
| John Doherty | Head | — | 44 | ~1896 |
| Mary Doherty | Daughter | — | 18 | ~1922 |
| John Doherty | Son | — | 17 | ~1923 |
| Patrick Doherty | Son | — | 14 | ~1926 |
| Rose Doherty | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | Mary J |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 18
Suffolk-County, Massachusetts · implied b. ~1922 — 8 household members
| Surname | Doherty |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H-4 |
| 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 Doherty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Doherty
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
Beatrice Doherty
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Doherty
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Doherty
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Doherty
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Doherty
Sibling · 1940 · age 9
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-t0627-01666-00511)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Driscoll | 3 | Daughter | — | Massachusetts |
| 42 | John J. Doherty | 44 | Head | Stationary Fireman | Eire |
| 43 | Mary J. Doherty | 46 | Wife | — | Eire |
| 44 | Mary J. Doherty THIS PERSON | 18 | Daughter | — | Massachusetts |
| 45 | John Doherty | 17 | Son | — | Massachusetts |
| 46 | Beatrice F. Doherty | 16 | Daughter | — | Massachusetts |
| 47 | Patrick J. Doherty | 14 | Son | — | Massachusetts |
| 48 | Rose T. Doherty | 11 | Daughter | — | Massachusetts |
| 49 | Theresa H. Doherty | 9 | Daughter | — | Massachusetts |
| 50 | Thomas Douglas | 34 | Head | Stationary Fireman | Eire |
| 51 | Sally Douglas | 32 | Wife | — | Eire |
| 52 | Mary C. Douglas | 3 | Daughter | — | Massachusetts |
| 53 | Thomas Douglas | 1 | Son | — | Massachusetts |
| 54 | James Zamagni | 26 | Head | 40 | Massachusetts |
| 55 | Louise Zamagni | 22 | Wife | — | Massachusetts |
| 56 | Marie Zamagni | 0 | Daughter | — | Massachusetts |
| 57 | Aperisani Aurelio | 36 | Lodger | Dish Washer | Italy |
| 58 | Gordon Gray | 36 | Head | Attendant | Canada-English |
| 59 | Helen Gray | 30 | Wife | — | New Hampshire |
| 60 | Virginia Gray | 13 | Daughter | — | New Hampshire |
| 61 | Cynthia Gray | 3 | Daughter | — | New Hampshire |
| 62 | Myra Ballow | 63 | Sister-in-law | — | New Hampshire |
| 63 | Henry C. Durant | 30 | Head | Press Operator | Connecticut |
| 64 | Mary J. Durant | 32 | Wife | — | Massachusetts |
| 65 | Herbert Quigley | 36 | Head | 40 | Massachusetts |
| 66 | Mary J. Quigley | 36 | Wife | — | Nova Scotia |
| 67 | Eva Quigley | 13 | Daughter | — | Massachusetts |
| 68 | Marion Quigley | 8 | Daughter | — | Massachusetts |
| 69 | Dora Quigley | 3 | Daughter | — | Massachusetts |
| 70 | Perry Quigley | 63 | Father | — | Nova Scotia |
| 71 | William Trimmer | 65 | Lodger | Rug Cleaner | Maine |
| 72 | Caroline Carroll | 37 | Head | — | Massachusetts |
| 73 | Claire Carroll | 5 | Daughter | — | Massachusetts |
| 74 | Howard L. Mitchell | 25 | Head | 20 | Massachusetts |
| 75 | Emily Mitchell | 23 | Wife | — | New Hampshire |
| 76 | Arletta Mitchell | 3 | Daughter | — | Massachusetts |
| 77 | Dorothy Mitchell | 2 | Daughter | — | Massachusetts |
| 78 | Francis W. Barrett | 26 | Head | 48 | Massachusetts |
| 79 | Thelma Barrett | 29 | Wife | — | Massachusetts |
| 80 | Elaine Barrett | 6 | 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)