TG
Thomas Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this Thomas Griffin across the 1920, 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Michael & Michael — first a son (b.~1910), then head of a 2-person household.
Age 30
b. ~1910
Male
Son
Born: Connecticut
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Griffin |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Connecticut |
| 1935 Residence (City) | Canton |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Expressing |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 150 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Occupation | Truck Driver |
| Township / Ward | Canton |
| Est. Birth Year | ~1910 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Michael Griffin | Head | — | 64 | ~1876 |
| Thomas Griffin | Son | — | 30 | ~1910 |
Census Appearances
1920
Norfolk, Massachusetts
Son, age 10
Norfolk, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Connecticut |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Norfolk, Massachusetts
Son, age 20
Norfolk, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Connecticut |
| Father's Birthplace | Ireland Free State |
| Mother's Birthplace | Ireland Free State |
| Occupation | Calender |
| Industry | Rubber Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Norfolk-County, Massachusetts
Son, age 30
Norfolk-County, Massachusetts · implied b. ~1910 — 2 household members
| Surname | Griffin |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Connecticut |
| 1935 Residence (City) | Canton |
| 1935 Residence (County) | Norfolk |
| Occupation | Truck Driver |
| Industry | Expressing |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 150 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Thomas Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Griffin (~0.92 confidence) and father Michael Griffin (~0.92 confidence) and father Michael Griffin (~0.92 confidence) and mother Margaret Griffin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Griffin
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Michael Griffin
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Michael Griffin
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Margaret Griffin
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Griffin
Son · 1940 · age 30 · b. ~1910 · 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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01626-00551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary M. Cunningham | 40 | Wife | — | Massachusetts |
| 2 | Mary E. Cunningham | 5 | Daughter | — | Massachusetts |
| 3 | Margaret A. Cunningham | 2 | Daughter | — | Massachusetts |
| 4 | John H. Cunniff | 27 | Head | Engineer | Massachusetts |
| 5 | Mary E. Cunniff | 27 | Wife | — | Maine |
| 6 | Barbara H. Cunniff | 2 | Daughter | — | Maine |
| 7 | Roscoe H. Sting | 77 | Father-in-law | — | Maine |
| 8 | Harold Rolfe | 21 | Head | Laborer | Massachusetts |
| 9 | Frances R. Rolfe | 18 | Wife | — | Massachusetts |
| 10 | Joseph J. Jr. Hinds | 56 | Head | Postal Clerk | Maine |
| 11 | Sadie G. Hinds | 54 | Wife | — | Massachusetts |
| 12 | Joseph Hinds | 28 | Son | Delivery Postal | Massachusetts |
| 13 | Roger N. Hinds | 21 | Son | Accountant | Massachusetts |
| 14 | John J. Durham | 60 | Head | — | Massachusetts |
| 15 | William F. Whitty | 56 | Head | Local Post Master | Massachusetts |
| 16 | Alice G. Whitty | 55 | Wife | — | Massachusetts |
| 17 | Marie Whitty | 27 | Daughter | Nurse | Massachusetts |
| 18 | Francis Whitty | 23 | Son | Shipper | Massachusetts |
| 19 | Paul Whitty | 20 | Son | Asst. Distributor | Massachusetts |
| 20 | Donald Whitty | 16 | Son | — | Massachusetts |
| 21 | Robert Whitty | 11 | Son | — | Massachusetts |
| 22 | Edward L. Underwood | 80 | Head | — | Massachusetts |
| 23 | Florence E. H. Smith | 64 | Housekeeper | Housekeeper | Massachusetts |
| 24 | Arthur Plechtheim | 57 | Head | Wholesale Man | Germany |
| 25 | Gladys Plechtheim | 41 | Wife | — | New York |
| 26 | Frederick Heeks | 51 | Head | Carman | Massachusetts |
| 27 | Frances Heeks | 41 | Wife | Raiser | Massachusetts |
| 28 | Dorothy Heeks | 21 | Daughter | Nurse Maid | Massachusetts |
| 29 | Ruth Heeks | 19 | Daughter | — | Massachusetts |
| 30 | Thomas Monahan | 65 | Head | Wool Sorter | Massachusetts |
| 31 | Rose E. Monahan | 52 | Wife | — | Massachusetts |
| 32 | Michael Roger | 40 | Head | Accountant | Massachusetts |
| 33 | Marguerite F. Roger | 31 | Wife | — | Massachusetts |
| 34 | James H. Morley | 57 | Head | Superintendent | England |
| 35 | William Jr. Morley | 23 | Son | Welder | Massachusetts |
| 36 | Claire Morley | 21 | Daughter | — | Massachusetts |
| 37 | Elizabeth Buckley | 61 | Sister-in-law | Housekeeper | Massachusetts |
| 38 | Too Much Space Buckley | None | — | — | — |
| 39 | Michael Griffin | 64 | Head | Laborer | Irish Free State |
| 40 | Thomas Griffin THIS PERSON | 30 | Son | Truck Driver | Connecticut |
Pedigree Summary
Thomas
Gen 1 · 4 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)