JG
Joseph Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Joseph Griffin across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | laborer |
| Industry | reforestation C.C.C. |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 988 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1918 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Rita Griffin | Daughter | — | 16 | ~1924 |
| Mary Griffin | Head | — | 41 | ~1899 |
| Francis Griffin | Son | — | 19 | ~1921 |
| Joseph Griffin | Son | — | 22 | ~1918 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 1
Suffolk, Massachusetts · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 11
Suffolk, Massachusetts · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 22
Suffolk-County, Massachusetts · implied b. ~1918 — 4 household members
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | laborer |
| Industry | reforestation C.C.C. |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 988 |
| Highest Grade | Hs 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 Joseph Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Griffin (~0.92 confidence) and father John Griffin (~0.92 confidence) and mother Johanna Griffin (~0.92 confidence) and mother Mary Griffin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Griffin
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Griffin
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Johanna Griffin
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Griffin
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Griffin
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Francis Griffin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Griffin
Sibling · 1940 · age 16
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-t0627-01659-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Doyle | 68 | Sister | Retail Coal | Eire |
| 2 | Michael Whelan | 30 | Head | Stableman | Massachusetts |
| 3 | Rose Whelan | 27 | Wife | None | Massachusetts |
| 4 | Margaret Whelan | 2 | Daughter | — | Massachusetts |
| 5 | Joan Whelan | 0 | Daughter | — | Massachusetts |
| 6 | Adolph Ponte | 46 | Head | Spinner | Portugal |
| 7 | Laura Ponte | 45 | Wife | None | Portugal |
| 8 | Isabelle Alvaro | 55 | Lodger | Ticket Agent | South America |
| 9 | Charles Bokus | 35 | Head | Truckman | Maine |
| 10 | Louise D. Bokus | 32 | Wife | None | Massachusetts |
| 11 | Charles Bokus | 6 | Son | — | Massachusetts |
| 12 | Mary Bokus | 2 | Daughter | — | Massachusetts |
| 13 | John Conley | 25 | Head | Electrician'S Helper | Massachusetts |
| 14 | Lorraine Conley | 22 | Wife | None | Massachusetts |
| 15 | John Jr. Conley | 2 | Son | — | Massachusetts |
| 16 | Patrick T. Whelan | 52 | Head | Stableman | Eire |
| 17 | Marguerite M. Whelan | 52 | Wife | None | Eire |
| 18 | Mary E. Whelan | 24 | Daughter | Bookkeeper | Massachusetts |
| 19 | Mary C. Whelan | 16 | Daughter | None | Massachusetts |
| 20 | Phyllis Gledhill | 31 | Head | Waitress | England |
| 21 | Catherine Brady | 62 | Head | None | Eire |
| 22 | Harry Brady | 27 | Son | Milk Man | Massachusetts |
| 23 | George Brady | 13 | Son | — | Massachusetts |
| 24 | Anna Kennedy | 30 | Daughter | Clerical | Massachusetts |
| 25 | Harold Byrnes | 42 | Head | Laborer | Massachusetts |
| 26 | Hester Byrnes | 27 | Wife | None | Massachusetts |
| 27 | Lora F. Byrnes | 2 | Daughter | — | Massachusetts |
| 28 | Harold L. Byrnes | 0 | Son | — | Massachusetts |
| 29 | Anthony Monico | 39 | Head | Fireman | Colorado |
| 30 | Robert Monico | 14 | Son | — | Massachusetts |
| 31 | Ronald Monico | 12 | Son | — | Massachusetts |
| 32 | Nettie C. Pritchard | 17 | Daughter | None | Massachusetts |
| 33 | Frederick Pritchard | 16 | Son | None | Massachusetts |
| 34 | Mary Griffin | 41 | Head | None | Massachusetts |
| 35 | Joseph Griffin THIS PERSON | 22 | Son | Laborer | Massachusetts |
| 36 | Francis Griffin | 19 | Son | None | Massachusetts |
| 37 | Rita Griffin | 16 | Daughter | None | Massachusetts |
| 38 | Antoinette Elia | 55 | Head | None | Italy |
| 39 | Teresa Elia | 24 | Daughter | Candy Packer | Massachusetts |
| 40 | Anna Elia | 20 | Daughter | Sorter | Massachusetts |
Related Census Records
Pedigree Summary
Joseph + 2 siblings
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)