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Harold Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Ohio
Our Model Tree links this Harold Davis across the 1920, 1930 and 1940 US Censuses in Knox-County, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Chas — first a son (b.~1902), then head of a 3-person household.
Age 38
b. ~1902
Male
Son
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Ohio |
| Surname | Davis |
| Given Name | Harold R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Morris Twp |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | road laborer |
| Industry | State Highway |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 988 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Road Laborer |
| Township / Ward | Morris Twp |
| Est. Birth Year | ~1902 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Charles Davis | Head | — | 68 | ~1872 |
| Harold Davis | Son | — | 38 | ~1902 |
| Irona Davis | Spouse | — | 67 | ~1873 |
Census Appearances
1920
Knox, Ohio
Son, age 17
Knox, Ohio · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Knox, Ohio
Son, age 27
Knox, Ohio · implied b. ~1903 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Harold R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Driver |
| Industry | Own Truck |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Knox-County, Ohio
Son, age 38
Knox-County, Ohio · implied b. ~1902 — 3 household members
| Surname | Davis |
| Given Name | Harold R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Morris Twp |
| 1935 Residence (County) | Knox |
| Occupation | road laborer |
| Industry | State Highway |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 988 |
| Highest Grade | Hs 4 |
| 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 Harold Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Davis (~0.92 confidence) and father Chas Davis (~0.92 confidence) and mother Irona Davis (~0.92 confidence) and mother Iona Davis (~0.92 confidence) and father Evan Conkeling (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Davis
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Chas Davis
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Irona Davis
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Iona Davis
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Evan Conkeling
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Davis
Son · 1940 · age 38 · b. ~1902 · 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 — Knox-County, Ohio
Open full size
1940 US Federal Census — Knox-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03093-00765)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence R. Smith | 62 | head | Farmer | Ohio |
| 2 | Beulah J. Smith | 50 | wife | — | Ohio |
| 3 | Alice B. Smith | 20 | daughter | Typing | Ohio |
| 4 | Lydia Y. Smith | 12 | daughter | — | Ohio |
| 5 | James H. Smith | 8 | son | — | Ohio |
| 6 | Robert G. Williams | 37 | head | Farm Labor | Ohio |
| 7 | Alice R. Williams | 37 | wife | Housework | Ohio |
| 8 | Hose E. Williams | 71 | father | — | Ohio |
| 9 | James J. Williams | 74 | uncle | — | Ohio |
| 11 | Charles Davis | 68 | head | Farmer | Ohio |
| 12 | Irona Davis | 67 | wife | — | Ohio |
| 13 | Harold R. Davis THIS PERSON | 38 | son | Road Laborer | Ohio |
| 14 | Frederick A. Tennant | 21 | head | Laborer | Ohio |
| 15 | Verna R. Tennant | 20 | wife | — | Minnesota |
| 16 | Charles W. Raiser | 31 | head | Trucker | Ohio |
| 17 | Charlotte M. Raiser | 29 | wife | — | Ohio |
| 18 | Barbara A. Raiser | 9 | daughter | — | Ohio |
| 19 | Beatrice J. Raiser | 8 | daughter | — | Ohio |
| 20 | Stanton Smith | 26 | head | Farmer | Virginia |
| 21 | Ellen G. Smith | 19 | wife | — | Virginia |
| 22 | John M. Vess | 60 | head | Farmer | Ohio |
| 23 | Stella M. Vess | 68 | wife | — | Ohio |
| 24 | Robert A. Phillips | 54 | head | Farmer | Ohio |
| 25 | Alice H. Phillips | 53 | wife | — | Ohio |
| 26 | Alex J. Jaworski | 38 | hired man | Farm Labor | Poland |
| 27 | Silas Mcdonald | 24 | hired man | Farm Labor | Ohio |
| 28 | Sylva Conkling | 59 | head | — | Ohio |
| 29 | Ruth L. Conkling | 14 | daughter | — | Ohio |
| 30 | Chester V. Johnson | 45 | head | Farmer | Ohio |
| 31 | Bessie O. Johnson | 44 | wife | — | Ohio |
| 32 | Lowell L. Johnson | 26 | son | Farm Labor | Ohio |
| 33 | Reba L. Johnson | 24 | daughter | Clerk | Ohio |
| 34 | Floyd P. Layman | 33 | head | Farmer | Ohio |
| 35 | Letha M. Layman | 33 | wife | — | Ohio |
| 36 | Lawrence G. Layman | 11 | son | — | Ohio |
| 37 | Harold R. Layman | 6 | son | — | Ohio |
| 38 | Guy W. Layman | 62 | father | — | Ohio |
| 39 | William O. Crawford | 51 | head | Farm Labor | Ohio |
| 40 | Ona M. Crawford | 51 | wife | Farm Labor | Ohio |
Pedigree Summary
Harold
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)