JG
James Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this James Griffin across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Edw & Jeremiah — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Griffin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Boat-inspector |
| Industry | City Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Boat-Inspector |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1908 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Jeremiah Griffin | Head | — | 64 | ~1876 |
| Collette Loretta | Other | — | 44 | ~1896 |
| Thomas Griffin | Son | — | 30 | ~1910 |
| James Griffin | Son | — | 32 | ~1908 |
Census Appearances
1920
St Louis, …
Son, age 11
St Louis, Missouri · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ireland |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 21
St Louis, Missouri · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Irish Free State |
| Occupation | Clerk |
| Industry | Steam Railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 32
St.-Louis-City-County, Missouri · implied b. ~1908 — 4 household members
| Surname | Griffin |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (City) |
| 1935 Residence (County) | St. Louis City |
| Occupation | Boat-inspector |
| Industry | City Dept. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 James Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edw Griffin (~0.92 confidence) and father Jeremiah Griffin (~0.92 confidence) and father Peter Griffin (~0.92 confidence) and mother Annie Griffin (~0.92 confidence) and mother Anna Griffin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edw Griffin
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Jeremiah Griffin
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Peter Griffin
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Annie Griffin
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Anna Griffin
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Griffin
Son · 1940 · age 32 · b. ~1908 · Missouri
★ You are viewing this record
Sibling
Thomas Griffin
Sibling · 1940 · age 30
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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02211-00868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leatrice Fine | 9 | Daughter | — | Missouri |
| 42 | Abe Fine | 37 | Head | Presser | Russia |
| 43 | Betty Fine | 33 | Wife | — | Missouri |
| 44 | Bernadine Fine | 13 | Daughter | — | Missouri |
| 45 | Cecelia Fine | 8 | Daughter | — | Missouri |
| 46 | Abraham Gimpelson | 66 | Head | Metal Yard | Russia |
| 47 | Bessie Gimpelson | 63 | Wife | — | Russia |
| 48 | Simon Gimpelson | 30 | Son | Metal Dealer | Missouri |
| 49 | Hyman Gimpelson | 29 | Son | Buyer | Missouri |
| 50 | Lenore Gimpelson | 27 | Daughter | Bookkeeper | Missouri |
| 51 | Julius Sager | 51 | Head | Druggist | New York |
| 52 | Lena Sager | 50 | Wife | — | Missouri |
| 53 | Violet Grumberg | 19 | Lodger | — | Missouri |
| 54 | Bessie Tatinsky | 23 | Lodger | Office Clerk | Missouri |
| 55 | Jeremiah Griffin | 64 | Head | Street Paver | Irish Free State |
| 56 | Thomas Griffin | 30 | Son | Clerk | Missouri |
| 57 | James Griffin THIS PERSON | 32 | Son | Boat-Inspector | Missouri |
| 58 | Collette Loretta | 44 | Housekeeper | Domestic Worker | Missouri |
| 59 | Mary Mcgrade | 72 | Head | — | Missouri |
| 60 | Eliza E. Mckenna | 84 | Aunt | — | Missouri |
| 61 | Ella F. Mcgrade | 73 | Sister | — | Missouri |
| 62 | Walter Mcgrade | 45 | Son | Maintenance | Missouri |
| 63 | Meinrad Roth | 38 | Head | Motor Assembler | Missouri |
| 64 | Mable Roth | 29 | Wife | — | Missouri |
| 65 | Jack Roth | 9 | Son | — | Missouri |
| 66 | Glennon Roth | 2 | Son | — | Missouri |
| 67 | William Graft | 38 | Head | Sheet Metal Worker | Missouri |
| 68 | Lillian Graft | 36 | Wife | — | Mississippi |
| 69 | William Graft | 7 | Son | — | Missouri |
| 70 | Richard Graft | 5 | Son | — | Missouri |
| 71 | Lillian Graft | 3 | Daughter | — | Missouri |
| 72 | Josephine Schoenfeld | 67 | In Law | — | Mississippi |
| 73 | Louis Schoenfeld | 33 | Brother in law | Bookkeeper | Missouri |
| 74 | Fernando Guzman | 52 | Head | Maintenance | Mexico |
| 75 | Elizabeth Guzman | 52 | Wife | — | Missouri |
| 76 | Ferdinand Guzman | 24 | Son | Filling Sta. Attendant | Missouri |
| 77 | Albert Guzman | 17 | Son | New Worker | Missouri |
| 78 | Edward Guzman | 14 | Son | — | Missouri |
| 79 | William Guzman | 10 | Son | — | Missouri |
| 80 | Ronald Guzman | 7 | Son | — | Missouri |
Pedigree Summary
James + 1 sibling
Gen 1 · 5 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)