MG
Mary Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Mary Griffin across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Griffin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield city |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | Springfield City |
| Est. Birth Year | ~1917 |
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 Griffin | Daughter | — | 23 | ~1917 |
| Catherine Griffin | Head | — | 68 | ~1872 |
| Mary Griffin | Other | — | 78 | ~1862 |
| Thomas Griffin | Son | — | 29 | ~1911 |
Census Appearances
1920
Hampden, Massachusetts
Daughter, age 3
Hampden, Massachusetts · implied b. ~1917 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Daughter, age 12
Hampden, Massachusetts · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Daughter, age 23
Hampden-County, Massachusetts · implied b. ~1917 — 4 household members
| Surname | Griffin |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Springfield city |
| 1935 Residence (County) | Hampden |
| Occupation | Clerk |
| Industry | Telephone |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1040 |
| Highest Grade | Hs 4 |
| 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 Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Catherine Griffin (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Catherine Griffin
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Griffin
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Thomas Griffin
Sibling · 1940 · age 29
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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01709-00052)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Archidiacono | 12 | Son | — | Massachusetts |
| 2 | Joanne Archidiacono | 11 | Daughter | — | Massachusetts |
| 3 | Enrico Archidiacono | 10 | Son | — | Massachusetts |
| 4 | Rose Archidiacono | 8 | Daughter | — | Massachusetts |
| 5 | Norman Menz | 56 | Head | Salesman | Massachusetts |
| 6 | Norman Menz | 32 | Son | Clerk | Massachusetts |
| 7 | Harold Menz | 25 | Son | Clerk | Massachusetts |
| 8 | John Springer | 62 | Boarder | — | Massachusetts |
| 9 | William Vostriompus | 36 | Head | Manager | Massachusetts |
| 10 | Marion Vostriompus | 34 | Wife | — | Massachusetts |
| 11 | John Bionvrey | 36 | Brother-in-law | Tinsmith | Massachusetts |
| 12 | Fred Bionvrey | 18 | Brother-in-law | — | Massachusetts |
| 13 | H. M. Burr | 75 | Head | — | Connecticut |
| 14 | Grace F. Burr | 75 | Wife | — | India |
| 15 | Edith Burr | 68 | Sister | — | Connecticut |
| 16 | Catherine Griffin | 68 | Head | — | Ireland |
| 17 | Mary Griffin | 78 | Sister | — | Ireland |
| 18 | Mary Griffin THIS PERSON | 23 | Daughter | Clerk | Massachusetts |
| 19 | Thomas Griffin | 29 | Son | Waiter | Massachusetts |
| 20 | Musa Gillette | 65 | Head | — | Massachusetts |
| 21 | Truman Gilligan | 38 | Son-in-law | Box Assembler | Massachusetts |
| 22 | Ruth Gilligan | 34 | Wife | — | Massachusetts |
| 23 | William Armitage | 21 | Head | Painter | Massachusetts |
| 24 | Flora Armitage | 19 | Wife | — | Massachusetts |
| 25 | William Armitage | 8 | Son | — | Massachusetts |
| 26 | Bertell Greemia | 39 | Head | Benchman | Massachusetts |
| 27 | Nellie Greemia | 32 | Wife | — | Connecticut |
| 28 | Bertell Jr. Greemia | 14 | Son | — | Massachusetts |
| 29 | Welsh Greemia | 13 | Son | — | Massachusetts |
| 30 | Shirley Greemia | 11 | Daughter | — | Massachusetts |
| 31 | Robert Greemia | 9 | Son | — | Massachusetts |
| 32 | Louella Greemia | 8 | Daughter | — | Massachusetts |
| 33 | Florence Greemia | 7 | Daughter | — | Massachusetts |
| 34 | Marilyn Greemia | 5 | Daughter | — | Massachusetts |
| 35 | Barbara Greemia | 2 | Daughter | — | Massachusetts |
| 36 | Charles Greemia | 0 | Son | — | Massachusetts |
| 37 | Reginald Smith | 24 | Head | Clerk | Massachusetts |
| 38 | Alberta Smith | 24 | Wife | — | Massachusetts |
| 39 | Reginald Jr. Smith | 0 | Son | — | Massachusetts |
| 40 | Howard Kennedy | 37 | Head | Doctor | Massachusetts |
Related Census Records
Pedigree Summary
Mary + 1 sibling
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)