MC
Mary Cleary — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Cleary across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Cleary |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Cleary | Daughter | — | 19 | ~1921 |
| John Cleary | Son | — | 14 | ~1926 |
| David Cleary | Head | — | 59 | ~1881 |
| Mary Cleary | Daughter | — | 18 | ~1922 |
| Mary Cleary | Spouse | — | 59 | ~1881 |
| David Cleary | Son | — | 17 | ~1923 |
| Theresa Cleary | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 7
Suffolk, Massachusetts · implied b. ~1923 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cleary |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Maine |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 18
Suffolk-County, Massachusetts · implied b. ~1922 — 7 household members
| Surname | Cleary |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | BOSTON |
| 1935 Residence (County) | SUFFOLK |
| Highest Grade | H-2 |
| 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 Cleary across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cleary
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
Theresa Cleary
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Cleary
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Cleary
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cleary
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 — 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-t0627-01680-00194)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grace E. Snow | 69 | Head | — | Massachusetts |
| 2 | Henry A. Vater | 58 | Head | Carpenter | Newfoundland |
| 3 | Elizabeth Vater | 53 | Wife | — | Newfoundland |
| 4 | Walter K. Titcomb | 25 | Son-in-law | Millwright | Massachusetts |
| 5 | Maria P. Titcomb | 27 | Daughter | General Office Worker | Massachusetts |
| 6 | Henry A. Fink | 40 | Head | Secretary | Massachusetts |
| 7 | Anna G. Fink | 40 | Wife | — | Massachusetts |
| 8 | Henry A. Fink | 5 | Son | — | Massachusetts |
| 9 | Barbara Fink | 1 | Daughter | — | Massachusetts |
| 10 | Amalia C. Fink | 69 | Mother | — | Germany |
| 11 | Michael J. Doyle | 58 | Head | Painter | Massachusetts |
| 12 | Rose A. Doyle | 56 | Wife | — | Irish Free State |
| 13 | Alice I. Doyle | 30 | Daughter | General Office Worker | Massachusetts |
| 14 | Charles F. Doyle | 27 | Son | Baggage Handler | Massachusetts |
| 15 | Blanche L. Doyle | 24 | Daughter | — | Massachusetts |
| 16 | Madeline R. Doyle | 21 | Daughter | Salesgirl | Massachusetts |
| 17 | Nora V. Curry | 70 | Head | — | Massachusetts |
| 18 | Catherine G. Curry | 37 | Daughter | Probate Clerk | Massachusetts |
| 19 | Louise M. Curry | 32 | Daughter | Secretary | Massachusetts |
| 20 | John J. Curry | 30 | Son | Owner-Attendant | Massachusetts |
| 21 | John Hunter | 77 | Head | — | Scotland |
| 22 | Margaret R. Hunter | 72 | Wife | — | Scotland |
| 23 | Earl J. Partridge | 22 | Grandson | Salesman | Massachusetts |
| 24 | Annie A. O'Neil | 67 | Head | — | Ireland |
| 25 | Helen T. O'Neil | 37 | Daughter | Stenographer | Massachusetts |
| 26 | Margaret O'Neil | 35 | Daughter | Stenographer | Massachusetts |
| 27 | Cornelius Campbell | 25 | Head | Airplane Mechanic | Massachusetts |
| 28 | Marion Campbell | 28 | Wife | — | Massachusetts |
| 29 | Bruce Campbell | 5 | Son | — | Massachusetts |
| 30 | Claire M. Campbell | 2 | Daughter | — | Massachusetts |
| 31 | Margaret Campbell | 55 | Head | — | Northern Ireland |
| 32 | John J. Campbell | 35 | Son | Truck Driver | Massachusetts |
| 33 | Ora M. Campbell | 29 | Daughter-in-law | — | Massachusetts |
| 34 | David E. Cleary | 59 | Head | Laborer | Massachusetts |
| 35 | Mary Cleary | 59 | Wife | — | Massachusetts |
| 36 | Alice Cleary | 19 | Daughter | — | Massachusetts |
| 37 | Mary Cleary THIS PERSON | 18 | Daughter | — | Massachusetts |
| 38 | David Cleary | 17 | Son | — | Massachusetts |
| 39 | John Cleary | 14 | Son | — | Massachusetts |
| 40 | Theresa Cleary | 13 | Daughter | — | Massachusetts |
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)