ID
Isaac Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calhoun-County, West Virginia
Our Model Tree links this Isaac Davis across the 1920, 1930 and 1940 US Censuses in Calhoun-County, West Virginia (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: West Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Calhoun-County, West Virginia |
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Center |
| 1935 Residence (County) | Calhoun |
| Additional Details | |
| Occupation | Sta. Engineer |
| Industry | Hope Nat Gas Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1900 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Occupation | Sta. Engineer |
| Township / Ward | Center |
| Est. Birth Year | ~1903 |
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 Isaac | Age | Birth yr |
|---|---|---|---|---|
| Welfred Davis | Spouse | — | 24 | ~1916 |
| Denzil Davis | Son | — | 3 | ~1937 |
| Isaac Davis | Head | — | 37 | ~1903 |
| Donald Davis | Son | — | 1 | ~1939 |
Census Appearances
1920
Calhoun, West …
Son, age 17
Calhoun, West Virginia · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Calhoun, West …
Son, age 27
Calhoun, West Virginia · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Laborer |
| Industry | Gas Station |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Calhoun-County, West …
Head, age 37
Calhoun-County, West Virginia · implied b. ~1903 — 4 household members
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | West Virginia |
| 1935 Residence (City) | Center |
| 1935 Residence (County) | Calhoun |
| Occupation | Sta. Engineer |
| Industry | Hope Nat Gas Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1900 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Isaac Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Davis (~0.92 confidence) and father John Davis (~0.92 confidence) and mother Sarah Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Davis
b. ~1871
Source father
● Household
· direct · ~0.92
Father
John Davis
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Sarah Davis
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Davis
Head · 1940 · age 37 · b. ~1903 · West Virginia
★ 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 — Calhoun-County, West Virginia
Open full size
1940 US Federal Census — Calhoun-County, West Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04400-00040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | June Davis | 17 | Wife | — | West Virginia |
| 42 | Joseph Davis | 1 | Gr. Gr. Son | — | West Virginia |
| 43 | Robert Davis | 0 | Gr. Gr. Son | — | West Virginia |
| 44 | Earl Davis | 21 | Grandson | Orderly | West Virginia |
| 45 | Violet Jarvis | 26 | Gr. Daughter | Postal Clerk | West Virginia |
| 46 | Stanley Jarvis | 5 | Gr. Gr. Son | — | West Virginia |
| 47 | Shum Anderson | 22 | Lodger | New Worker | West Virginia |
| 48 | Isaac Davis THIS PERSON | 37 | Head | Sta. Engineer | West Virginia |
| 49 | Welfred Davis | 24 | Wife | — | West Virginia |
| 50 | Denzil Davis | 3 | Son | — | West Virginia |
| 51 | Donald Davis | 1 | Son | — | West Virginia |
| 52 | John Propts | 61 | Head | — | West Virginia |
| 53 | Berdie Propts | 59 | Wife | — | West Virginia |
| 54 | Fenton Betts | 50 | Head | Oiler | West Virginia |
| 55 | Ella Betts | 49 | Wife | — | West Virginia |
| 56 | Velda Betts | 21 | Daughter | School Teacher | West Virginia |
| 57 | Donzel Betts | 17 | Son | — | West Virginia |
| 58 | Claude Osborne | 51 | Head | Oiler | West Virginia |
| 59 | Bertha Osborne | 50 | Wife | — | West Virginia |
| 60 | Calvin Dobbins | 48 | Head | Roustabout | West Virginia |
| 61 | Eva Dobbins | 36 | Wife | — | West Virginia |
| 62 | Hoy Dobbins | 7 | Son | — | West Virginia |
| 63 | Wilfred Dobbins | 5 | Son | — | West Virginia |
| 64 | Mary Williams | 50 | Head | — | West Virginia |
| 65 | Hale Williams | 28 | Son | — | West Virginia |
| 66 | Albert Williams | 22 | Son | Stone Cutter | West Virginia |
| 67 | Alva Williams | 20 | Son | Stone Cutter | West Virginia |
| 68 | Millie D Williams | 18 | Daughter | — | West Virginia |
| 69 | Irene Williams | 15 | Daughter | — | West Virginia |
| 70 | Sam Stalnaker | 66 | Brother | Farm Laborer | West Virginia |
| 71 | Ezra Sears | 46 | Head | Tower Foreman | West Virginia |
| 72 | Ella Sears | 37 | Wife | — | West Virginia |
| 73 | Dolan Sears | 18 | Son | Blacksmith | West Virginia |
| 74 | Edith Sears | 16 | Daughter | — | West Virginia |
| 75 | Duane Sears | 9 | Son | — | West Virginia |
| 76 | Delmar Sears | 6 | Son | — | West Virginia |
| 77 | Sam Hall | 37 | Head | Sta. Operator | West Virginia |
| 78 | Freda Hall | 38 | Wife | — | West Virginia |
| 79 | James Hall | 17 | Son | Repair Man | West Virginia |
| 80 | Wilber Hall | 15 | Son | — | West Virginia |
Pedigree Summary
Isaac
Gen 1 · 3 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)