ID
Ira Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ottawa-County, Oklahoma
Our Model Tree links this Ira Davis across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Cora & Ezra — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Oklahoma |
| Surname | Davis |
| Given Name | Ira |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Ottawa Twp |
| 1935 Residence (County) | Ottawa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Packing Dairy |
| Class of Worker | PW |
| Hours Worked | 56 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Laborer |
| Township / Ward | Ottawa Twp |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ira | Age | Birth yr |
|---|---|---|---|---|
| Ira Davis | Son | — | 21 | ~1919 |
| Ezra Davis | Head | — | 61 | ~1879 |
| Lorene Davis | Daughter | — | 22 | ~1918 |
| Beulah Davis | Daughter | — | 27 | ~1913 |
| Ethel Davis | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Ottawa, Oklahoma
Son, age
Ottawa, Oklahoma · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ira |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Ottawa, Oklahoma
Son, age 11
Ottawa, Oklahoma · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Ira B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Ottawa-County, Oklahoma
Son, age 21
Ottawa-County, Oklahoma · implied b. ~1919 — 5 household members
| Surname | Davis |
| Given Name | Ira |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Ottawa Twp |
| 1935 Residence (County) | Ottawa |
| Occupation | Laborer |
| Industry | Packing Dairy |
| Class of Worker | PW |
| Hours Worked | 56 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Ira Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Cora Davis (~0.92 confidence) and father Ezra Davis (~0.92 confidence) and father Ezra Davis (~0.92 confidence) and mother Ethel Davis (~0.92 confidence) and mother Ethel Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Cora Davis
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Ezra Davis
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Ezra Davis
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Ethel Davis
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Ethel Davis
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ira Davis
Son · 1940 · age 21 · b. ~1919 · Oklahoma
★ You are viewing this record
Sibling
Beulah Davis
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorene Davis
Sibling · 1940 · age 22
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 — Ottawa-County, Oklahoma
Open full size
1940 US Federal Census — Ottawa-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03321-00502)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ezra Davis | 61 | Head | Farmer | Missouri |
| 2 | Ethel Davis | 52 | Wife | Housewife | Missouri |
| 3 | Beulah Davis | 27 | Daughter | Asst Housekeeper | Missouri |
| 4 | Lorene Davis | 22 | Daughter | Asst Housekeeper | Oklahoma |
| 5 | Ira Davis THIS PERSON | 21 | Son | Laborer | Oklahoma |
| 6 | Claud Leader | 35 | Head | Laborer | Missouri |
| 7 | Pearl Leader | 34 | Wife | Housewife | Oklahoma |
| 8 | Clifford Leader | 14 | Son | — | Oklahoma |
| 9 | Flora Leader | 11 | Daughter | — | Oklahoma |
| 10 | Douglas Leader | 9 | Son | — | Oklahoma |
| 11 | Hesseltine Cordelia | 69 | Mother-in-law | Asst Housekeeper | Arkansas |
| 12 | Melvin Estes | 29 | Head | Farmer | Oklahoma |
| 13 | Lola Estes | 25 | Wife | Housewife | Oklahoma |
| 14 | William Mootee | 77 | Head | — | Illinois |
| 15 | Le Roy Mootee | 30 | Son | Farmer | Oklahoma |
| 16 | Bertha Dearing | 66 | Head | Manager | Iowa |
| 17 | Ferrel Le Roy Dearing | 23 | Orphan | Truck Driver | Missouri |
| 18 | Keene Frank Dearing | 23 | Orphan | Ensign | California |
| 19 | John Smallwood | 27 | Head | Laborer | Kansas |
| 20 | Viola Smallwood | 19 | Wife | Housewife | Oklahoma |
| 21 | John Jr Smallwood | 0 | Son | — | Oklahoma |
| 22 | Edwin Schaefer | 26 | Head | Laborer | Oklahoma |
| 23 | Anna Schaefer | 20 | Wife | Housewife | Oklahoma |
| 24 | Ervin Jr Schaefer | 2 | Son | — | Oklahoma |
| 25 | Woodrow The Cleary | 25 | Head | Farmer | Oklahoma |
| 26 | Lida The Cleary | 24 | Wife | Housewife | Oklahoma |
| 27 | Carl Gilmore | 36 | Head | Laborer | Missouri |
| 28 | Grace Gilmore | 32 | Wife | Housewife | Arkansas |
| 29 | Mojine Gilmore | 12 | Daughter | — | Oklahoma |
| 30 | Mae Gilmore | 6 | Son | — | Oklahoma |
| 31 | Donald Gilmore | 3 | Son | — | Oklahoma |
| 32 | Everett Cox | 35 | Head | Laborer - Odd Jobs | Oklahoma |
| 33 | Annabella Cox | 28 | Wife | Housewife | Nebraska |
| 34 | Loyd Cox | 9 | Son | — | Oklahoma |
| 35 | Patricia Cox | 5 | Daughter | — | Oklahoma |
| 36 | James W Cox | 4 | Son | — | Oklahoma |
| 37 | Ralph Stoner | 23 | Head | Farmer | Oklahoma |
| 38 | Willie Stoner | 19 | Wife | Housewife | Oklahoma |
| 39 | Richard Stoner | 4 | Son | — | Oklahoma |
| 40 | Phyllis Stoner | 1 | Daughter | — | Oklahoma |
Pedigree Summary
Ira + 2 siblings
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)