MF
Mary Flaherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Flaherty across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H-8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Flaherty | Spouse | — | 57 | ~1883 |
| Richard Flaherty | Head | — | 58 | ~1882 |
| Paul Flaherty | Son | — | 27 | ~1913 |
| Mary Flaherty | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 37
Suffolk, Massachusetts · implied b. ~1883 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Spouse, age 47
Suffolk, Massachusetts · implied b. ~1883 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 57
Suffolk-County, Massachusetts · implied b. ~1883 — 4 household members
| Surname | Flaherty |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H-8 |
| 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 Flaherty across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Flaherty
Spouse · 1940 · age 57 · b. ~1883 · Massachusetts
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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-t0627-01682-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis Hastings | 6 | Daughter | — | Massachusetts |
| 2 | Barbara Hastings | 5 | Daughter | — | Massachusetts |
| 3 | Ursula Hastings | 3 | Daughter | — | Massachusetts |
| 4 | Edward F. Hastings | 3 | Son | — | Massachusetts |
| 5 | Mary E. Mcmackin | 45 | Sister-in-law | Stenographer | Massachusetts |
| 6 | Reuben Vercia | 47 | Head | Foreman | Massachusetts |
| 7 | Anna Vercia | 38 | Wife | — | Canada Eng |
| 8 | William J. Vercia | 12 | Son | — | Massachusetts |
| 9 | Edward Vercia | 11 | Son | — | Massachusetts |
| 10 | Paul Vercia | 4 | Son | — | Massachusetts |
| 11 | Edwin Young | 35 | Head | Auto Mech | Massachusetts |
| 12 | Lillian R. Young | 31 | Wife | — | Massachusetts |
| 13 | Edwin Young | 4 | Son | — | Massachusetts |
| 14 | Lloyd M. Johnson | 37 | Head | Fireman | Massachusetts |
| 15 | Mary Johnson | 37 | Wife | — | Germany |
| 16 | Thomas J. Walsh | 39 | Head | Police Officer | Massachusetts |
| 17 | Irene M. Walsh | 39 | Wife | — | Massachusetts |
| 18 | Thomas J. Walsh | 4 | Son | — | Massachusetts |
| 19 | Edward G. Walsh | 10 | Son | — | Massachusetts |
| 20 | Florence St. Onge | 63 | Head | Clothing Co. | England |
| 21 | Gertrude O'Neil | 51 | Sister | Stenographer | Massachusetts |
| 22 | Celeste Rambeau | 44 | Head | Chauffeur | Italy |
| 23 | Mary M. Rambeau | 34 | Wife | — | Massachusetts |
| 24 | Theresa Rambeau | 8 | Daughter | — | Massachusetts |
| 25 | Elizabeth A. Rambeau | 5 | Daughter | — | Massachusetts |
| 26 | Jean Rambeau | 3 | Daughter | — | Massachusetts |
| 27 | John E. Purcell | 49 | Head | Foreman | Massachusetts |
| 28 | Ellen Purcell | 47 | Wife | — | Irish Free State |
| 29 | Mary Purcell | 13 | Daughter | — | Massachusetts |
| 30 | John Purcell | 12 | Son | — | Massachusetts |
| 31 | Daniel Purcell | 10 | Son | — | Massachusetts |
| 32 | Edward Mccarthy | 37 | Head | Chauffeur | Massachusetts |
| 33 | Catherine Mccarthy | 33 | Wife | — | Massachusetts |
| 34 | Edward F. Mccarthy | 5 | Son | — | Massachusetts |
| 35 | Richard Flaherty | 58 | Head | Conductor | Massachusetts |
| 36 | Mary Flaherty THIS PERSON | 57 | Wife | — | Massachusetts |
| 37 | Paul Flaherty | 27 | Son | Shipper | Massachusetts |
| 38 | Mary Flaherty | 23 | Daughter | Analyzer | Massachusetts |
| 39 | Irene Maguire | 27 | Head | — | Massachusetts |
| 40 | Charles Maguire | 3 | Son | — | 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)