JG
Joseph Griffin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Ohio
Our Model Tree links this Joseph Griffin across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed), with identified parents Clyde & Clyde — first a head (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Ohio |
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Inspector |
| Industry | Iron Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 550 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Inspector |
| Township / Ward | Dayton |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Ruth Griffin | Spouse | — | 18 | ~1922 |
| Joseph Griffin | Son | — | 1 | ~1939 |
| Joseph Griffin | Head | — | 25 | ~1915 |
| Gerald Griffin | Son | — | ~1940 |
Census Appearances
1920
Montgomery, Ohio
Son, age 5
Montgomery, Ohio · implied b. ~1915 — 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 | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Montgomery, Ohio
Son, age 15
Montgomery, Ohio · implied b. ~1915 — 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 | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Montgomery-County, Ohio
Head, age 25
Montgomery-County, Ohio · implied b. ~1915 — 4 household members
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton |
| 1935 Residence (County) | Montgomery |
| Occupation | Inspector |
| Industry | Iron Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 550 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Clyde Griffin (~0.60 confidence) and father Clyde Griffin (~0.92 confidence) and mother Anna Griffin (~0.60 confidence) and mother Anna Griffin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Father
Clyde Griffin
b. ~1905
Source father
● Household
· direct · ~0.6
Father
Clyde Griffin
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Anna Griffin
b. ~1904
Source mother
● Household
· direct · ~0.6
Mother
Anna Griffin
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Griffin
Head · 1940 · age 25 · b. ~1915 · Ohio
★ 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 — Montgomery-County, Ohio
Open full size
1940 US Federal Census — Montgomery-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03256-00790)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen C. Carr | 22 | Wife | — | Ohio |
| 42 | Victor J. Staunch | 42 | Head | Machine Operator | Kentucky |
| 43 | Pauline U. Staunch | 40 | Wife | — | Indiana |
| 44 | Pauline A. Staunch | 16 | Daughter | — | Illinois |
| 45 | Joseph V. Staunch | 12 | Son | — | Ohio |
| 46 | Betty J. Staunch | 4 | Daughter | — | Ohio |
| 47 | Wesley Kirkwood | 44 | Head | Machinist | Ohio |
| 48 | Hester M. Kirkwood | 48 | Wife | — | Tennessee |
| 49 | Elsie Hays | 15 | Daughter | — | Tennessee |
| 50 | Jamie H. Harder | 12 | Daughter | — | Tennessee |
| 51 | Elmer F. Levory | 52 | Head | Maintenance Man | Ohio |
| 52 | Salome Levory | 56 | Wife | — | Ohio |
| 53 | William Fenner | 35 | Head | Stock Keeper | Ohio |
| 54 | Pauline Fenner | 29 | Wife | — | Ohio |
| 55 | Carol A. Fenner | 2 | Daughter | — | Ohio |
| 56 | Benson B. Donohoe | 24 | Brother | Mechanic Parts | Ohio |
| 57 | Michael J. Roach | 66 | Head | Car Inspector | Irish Free State |
| 58 | Ellen L. Roach | 56 | Wife | — | Ohio |
| 59 | Catherine M. Roach | 35 | Daughter | Stenographer | Ohio |
| 60 | Ruth H. Roach | 22 | Daughter | Bookkeeper | Ohio |
| 61 | Thomas C. White | 36 | Head | Fireman | Ohio |
| 62 | Margaret White | 37 | Wife | — | Ohio |
| 63 | Mary White | 10 | Daughter | — | Ohio |
| 64 | Jennie Mcquigg | 88 | Head | — | Ohio |
| 65 | Carl D. Keafauver | 60 | Head | Maintenance Engineer | Ohio |
| 66 | Mary J. Keafauver | 54 | Wife | — | Ohio |
| 67 | Edward J. Brockman | 50 | Head | Tool Maker | Ohio |
| 68 | Marcella C. Brockman | 29 | Wife | — | Ohio |
| 69 | Ralph S. Cooley | 55 | Head | Bookkeeper | Ohio |
| 70 | Harriet Cooley | 54 | Wife | — | Ohio |
| 71 | Arthur H. Coates | 49 | Head | Linotype Operator | Canada English |
| 72 | Bessie M. Coates | 49 | Wife | — | Ohio |
| 73 | Lillian Coates | 22 | Daughter | Typist | Ohio |
| 74 | Glenn Martin | 28 | Head | Tool Maker | Ohio |
| 75 | Mary Martin | 19 | Wife | — | Ohio |
| 76 | Glenn Jr. Martin | 1 | Son | — | Ohio |
| 77 | Joseph Griffin THIS PERSON | 25 | Head | Inspector | Ohio |
| 78 | Ruth Griffin | 18 | Wife | — | Ohio |
| 79 | Joseph Jr. Griffin | 1 | Son | — | Ohio |
| 80 | Gerald Griffin | 0 | Son | — | Ohio |
Pedigree Summary
Joseph
Gen 1 · 4 parents
~0.76
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)