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Robert Griffin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kay-County, Oklahoma
Our Model Tree links this Robert Griffin across the 1930 and 1940 US Censuses in Kay-County, Oklahoma (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Male
Son
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kay-County, Oklahoma |
| Surname | Griffin |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Newkirk Township |
| 1935 Residence (County) | Kay |
| Additional Details | |
| Class of Worker | GW |
| Income (1939) | 0 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Newkirk Township |
| Est. Birth Year | ~1921 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Inez Griffin | Spouse | — | 42 | ~1898 |
| Elizabeth Griffin | Daughter | — | 11 | ~1929 |
| Robert Griffin | Head | — | 54 | ~1886 |
| Jane Griffin | Daughter | — | 14 | ~1926 |
| Roberta Griffin | Daughter | — | 9 | ~1931 |
| Rippley Griffin | Son | — | 17 | ~1923 |
| Robert Griffin | Son | — | 19 | ~1921 |
| Maxine Griffin | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Kay, Oklahoma
Son, age 9
Kay, Oklahoma · implied b. ~1921 — 24 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | Washington |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Kay-County, Oklahoma
Son, age 19
Kay-County, Oklahoma · implied b. ~1921 — 8 household members
| Surname | Griffin |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Newkirk Township |
| 1935 Residence (County) | Kay |
| Class of Worker | GW |
| Income (1939) | 0 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Robert Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Griffin
Son · 1940 · age 19 · b. ~1921 · Oklahoma
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Sibling
Elizabeth Griffin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rippley Griffin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Griffin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Griffin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roberta Griffin
Sibling · 1940 · age 9
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 — Kay-County, Oklahoma
Open full size
1940 US Federal Census — Kay-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03301-00024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George W Moore | 29 | Head | Building Custodian | Missouri |
| 2 | Lucinda Moore | 29 | Wife | Matron | Oklahoma |
| 3 | Charles R Fleming | 52 | Head | Plumber | Kansas |
| 4 | Eva P Fleming | 57 | Wife | — | Missouri |
| 5 | Robert E Griffin | 54 | Head | Carpenter | Washington |
| 6 | Inez Griffin | 42 | Wife | — | Georgia |
| 7 | Robert H Griffin THIS PERSON | 19 | Son | — | South Carolina |
| 8 | Rippley Griffin | 17 | Son | — | Missouri |
| 9 | Jane Griffin | 14 | Daughter | — | Oklahoma |
| 10 | Maxine Griffin | 12 | Daughter | — | Oklahoma |
| 11 | Elizabeth Griffin | 11 | Daughter | — | Oklahoma |
| 12 | Roberta Griffin | 9 | Daughter | — | Kansas |
| 13 | Harry Webb | 50 | Head | — | Iowa |
| 14 | Louisa Webb | 49 | Wife | Boys Matron | South Dakota |
| 15 | Albert (Ab) Webb | 20 | Son | — | South Dakota |
| 16 | Ray D Colglazier | 44 | Head | Physical Director | Arkansas |
| 17 | Hall Colglazier | 44 | Wife | Domestic Science | Oklahoma |
| 18 | Helen Colglazier | 14 | Daughter | — | Oklahoma |
| 19 | Patricia Colglazier | 1 | Daughter | — | Kansas |
| 20 | Ida R Scott | 36 | Head | Domestic Science | Indiana |
| 21 | Hester G Owens | 33 | Head | Boys Advisor | New York |
| 22 | Albert G Barrels | 47 | Head | Dairyman | North Dakota |
| 23 | Lela Barrels | 53 | Wife | — | Arkansas |
| 24 | Marion G Ross | 42 | Head | Domestic Science | Missouri |
| 25 | Carrie E Robinson | 55 | Head | Matron | Oklahoma |
| 26 | Evelyn A Crowe | 28 | Head | Girls Matron | Oklahoma |
| 27 | Ruth G Davis | 24 | Head | New Worker | Oklahoma |
| 28 | Ray Denman | 40 | Head | Agricultural Teacher | Texas |
| 29 | Ruby A Denman | 36 | Wife | Student Matron | Oklahoma |
| 30 | Roger H Denman | 17 | Son | — | Oklahoma |
| 31 | Betty L Denman | 14 | Daughter | — | Oklahoma |
| 32 | Vern Hunt | 27 | Head | Mail Carrier | Oklahoma |
| 33 | Geraldine S Hunt | 26 | Wife | Housekeeper | Oklahoma |
| 34 | Deborah Hunt | 6 | Daughter | — | Oklahoma |
| 35 | Earl G Brinell | 42 | Head | Asst. Supt. Of Ind. | Kansas |
| 36 | Ethel Brinell | 40 | Wife | Laundress | Kansas |
| 37 | Earl Jr Brinell | 12 | Son | — | Kansas |
| 38 | Edna A Stowell | 41 | Head | Girls Advisor | Nebraska |
| 39 | Lawrence G Correll | 44 | Head | Superintendent | Oklahoma |
| 40 | Florence Correll | 44 | Wife | Postmistress | Kansas |
Related Census Records
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)