JG
John Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this John Griffin across the 1920, 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Catherine — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Griffin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chicopee |
| 1935 Residence (County) | Hampden |
| Additional Details | |
| Occupation | Estimator |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 3000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Estimator |
| Township / Ward | Chicopee |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rosemary Griffin | Daughter | — | 4 | ~1936 |
| John Griffin | Head | — | 27 | ~1913 |
| Mary Griffin | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Hampden, Massachusetts
Son, age 7
Hampden, Massachusetts · implied b. ~1913 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Hampden, Massachusetts
Son, age 17
Hampden, Massachusetts · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Hampden-County, Massachusetts
Head, age 27
Hampden-County, Massachusetts · implied b. ~1913 — 3 household members
| Surname | Griffin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chicopee |
| 1935 Residence (County) | Hampden |
| Occupation | Estimator |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 3000 |
| Highest Grade | H 4 |
| 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 John 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. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Griffin
Head · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
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-t0627-01593-00460)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Weislo | 19 | Son | Salesman | Massachusetts |
| 42 | John Luczavo | 49 | Head | Gardener | Poland |
| 43 | Anna Luczavo | 40 | Wife | — | Poland |
| 44 | Peter Luczavo | 24 | Son | Woodchopper | Massachusetts |
| 45 | Henry Luczavo | 19 | Son | Gasoline Station Attendant | Massachusetts |
| 46 | Julia Luczavo | 16 | Daughter | — | Massachusetts |
| 47 | Joseph Partyka | 44 | Head | Butcher | Poland |
| 48 | Caroline Partyka | 46 | Wife | — | Poland |
| 49 | John Partyka | 22 | Son | New Worker | Massachusetts |
| 50 | Valentine Partyka | 19 | Son | — | Massachusetts |
| 51 | Helen Partyka | 15 | Daughter | — | Connecticut |
| 52 | John Rusin | 30 | Head | Laborer | Connecticut |
| 53 | Josephine Rusin | 23 | Wife | Ironer | Massachusetts |
| 54 | William Ely | 57 | Head | Designer | Vermont |
| 55 | Eliza Ely | 64 | Wife | — | Rhode Island |
| 56 | Lillian Ely | 26 | Daughter | — | Massachusetts |
| 57 | Frances Bouchard | 26 | Head | Manager | Massachusetts |
| 58 | Jacqueline Bouchard | 25 | Wife | — | Canada French |
| 59 | Judith Bouchard | 1 | Daughter | — | Massachusetts |
| 60 | Patrick Donnelan | 34 | Head | Presser | Eire Ireland |
| 61 | Ellen Donnelan | 37 | Wife | — | Eire Ireland |
| 62 | Mary Donnelan | 13 | Daughter | — | Massachusetts |
| 63 | Joseph Donnelan | 10 | Son | — | Massachusetts |
| 64 | Euclide Ferrier | 34 | Head | Salesman | Massachusetts |
| 65 | Dora Ferrier | 31 | Wife | Operator | Massachusetts |
| 66 | Michael Duffy | 44 | Head | Switchboard Operator | Massachusetts |
| 67 | Rose Duffy | 42 | Wife | — | Massachusetts |
| 68 | Joseph Duffy | 10 | Son | — | Massachusetts |
| 69 | George Chase | 76 | Head | Making Tennis Racquets | Vermont |
| 70 | Katherine Chase | 64 | Wife | — | New Hampshire |
| 71 | George Hodgdon | 49 | Head | Presser | New Hampshire |
| 72 | Ethel Hodgdon | 53 | Wife | Sewing Mach. Oper. | Maine |
| 73 | George Young | 55 | Head | Toolmaker | Maine |
| 74 | Cotta Young | 54 | Wife | — | New Hampshire |
| 75 | John Griffin THIS PERSON | 27 | Head | Estimator | Massachusetts |
| 76 | Mary Griffin | 28 | Wife | — | Massachusetts |
| 77 | Rosemary Griffin | 4 | Daughter | — | Massachusetts |
| 78 | Frank Riley | 64 | Head | Clerk | Massachusetts |
| 79 | Helen Riley | 55 | Wife | — | Eire Ireland |
| 80 | Stanley Czernecki | 46 | Head | Machinist | Poland |
Pedigree Summary
John
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)