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John Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grady-County, Oklahoma
Our Model Tree links this John Dennis across the 1930 and 1940 US Censuses in Grady-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 8-person household.
Age 45
b. ~1895
Male
Head
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grady-County, Oklahoma |
| Surname | Dennis |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Shirley Township |
| 1935 Residence (County) | Grady |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Farmer |
| Township / Ward | Shirley Township |
| Est. Birth Year | ~1895 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Donnie Dennis | Son | — | 2 | ~1938 |
| Edna Dennis | Daughter | — | ~1940 | |
| Fred Dennis | Son | — | 11 | ~1929 |
| Claud Dennis | Son | — | 5 | ~1935 |
| John Dennis | Head | — | 45 | ~1895 |
| Roy Dennis | Son | — | 4 | ~1936 |
| Winnie Barnett | Daughter | — | 8 | ~1932 |
| Ruth Dennis | Spouse | — | 28 | ~1912 |
Census Appearances
1930
Grady, Oklahoma
Head, age 35
Grady, Oklahoma · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 33 |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Occupation | Farmer |
| Industry | On Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Grady-County, Oklahoma
Head, age 45
Grady-County, Oklahoma · implied b. ~1895 — 8 household members
| Surname | Dennis |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Shirley Township |
| 1935 Residence (County) | Grady |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 John Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dennis
Head · 1940 · age 45 · b. ~1895 · Oklahoma
★ 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 — Grady-County, Oklahoma
Open full size
1940 US Federal Census — Grady-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03295-00832)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl P. Solomon | 34 | Head | Farmer | Texas |
| 2 | Ella Solomon | 30 | Wife | — | Oklahoma |
| 3 | Louis E. Solomon | 12 | Son | — | Oklahoma |
| 4 | Arvil D. Solomon | 11 | Son | — | Oklahoma |
| 5 | William R. Marlow | 22 | Son in law | — | Texas |
| 6 | Surry Marlow | 69 | Mother | — | Texas |
| 7 | Beaty Hooker | 52 | Head | Farmer | Texas |
| 8 | Maud Hooker | 46 | Wife | — | Texas |
| 9 | Augusta Hooker | 18 | Son | Farmer | Oklahoma |
| 10 | Irene Hooker | 15 | Daughter | — | Oklahoma |
| 11 | Beaty June Hooker | 11 | Son | — | Oklahoma |
| 12 | Gary Hooker | 7 | Son | — | Oklahoma |
| 13 | Carey E. Elliott | 41 | Head | Farmer | Oklahoma |
| 14 | Sarah L. Elliott | 36 | Wife | — | Oklahoma |
| 15 | Mary J. Elliott | 18 | Daughter | — | Oklahoma |
| 16 | Floyd D. Elliott | 16 | Son | — | Texas |
| 17 | Lloyd D. Elliott | 16 | Son | — | Texas |
| 18 | John R. Dennis THIS PERSON | 45 | Head | Farmer | Oklahoma |
| 19 | Ruth A. Dennis | 28 | Wife | — | Okla |
| 20 | Fred Dennis | 11 | Son | — | Okla |
| 21 | Winnie L. Barnett | 8 | Daughter | — | Okla |
| 22 | Claud Dennis | 5 | Son | — | Okla |
| 23 | Roy Dennis | 4 | Son | — | Okla |
| 24 | Donnie Dennis | 2 | Son | — | Okla |
| 25 | Edna R. Dennis | 0 | Daughter | — | Okla |
| 26 | George W. Eubank | 54 | Head | Laborer | Texas |
| 27 | Bill Zimmer | 43 | Head | Laborer | Okla |
| 28 | Mattie Zimmer | 28 | Wife | — | Okla |
| 29 | I. C. Overbay | 9 | Son | — | Okla |
| 30 | Been E. Overbay | 7 | Son | — | Okla |
| 31 | Earley R. Overbay | 5 | Son | — | Okla |
| 32 | Jessie O. Zimmer | 2 | Son | — | Okla |
| 33 | William D. Baylar | 44 | Head | Farmer | Tenn |
| 34 | Cleo P. Baylar | 34 | Wife | — | Tenn |
| 35 | Wilma L. Baylar | 18 | Daughter | — | Tenn |
| 36 | Loyd E. Baylar | 17 | Son | — | Tenn |
| 37 | Fern O. Baylar | 15 | Daughter | — | Okla |
| 38 | J. T. Baylar | 14 | Son | — | Okla |
| 39 | Buford E. Baylar | 11 | Son | — | Okla |
| 40 | Ruth E. Baylar | 7 | Daughter | — | Okla |
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)