ID
Isaac Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dallas-County, Texas
Our Model Tree links this Isaac Davis across the 1920, 1930 and 1940 US Censuses in Dallas-County, Texas (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Head
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dallas-County, Texas |
| Surname | Davis |
| Given Name | Isaac S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Additional Details | |
| Occupation | butcher |
| Industry | retail grocery |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 2080 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Butcher |
| Township / Ward | Dallas City |
| Est. Birth Year | ~1906 |
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 Isaac | Age | Birth yr |
|---|---|---|---|---|
| Isaac Davis | Head | — | 34 | ~1906 |
| Donald Davis | Son | — | 4 | ~1936 |
| Creola Davis | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Dallas, Texas
Other, age 15
Dallas, Texas · implied b. ~1905 — 18 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | Laborer |
| Industry | Public |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Dallas, Texas
Head, age 25
Dallas, Texas · implied b. ~1905
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Texas |
| Age at First Marriage | 22 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | Laborer |
| Industry | Register Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 17.50 |
| Veteran | No |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Dallas-County, Texas
Head, age 34
Dallas-County, Texas · implied b. ~1906 — 3 household members
| Surname | Davis |
| Given Name | Isaac S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Dallas City |
| 1935 Residence (County) | Dallas |
| Occupation | butcher |
| Industry | retail grocery |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 2080 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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.
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This person
Anchor record
Isaac Davis
Head · 1940 · age 34 · b. ~1906 · Texas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Dallas-County, Texas
Open full size
1940 US Federal Census — Dallas-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04176-00688)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jewel M. Contd. | 26 | Daughter | — | Texas |
| 2 | Shirley S. Contd. | 5 | Daughter | — | Texas |
| 3 | Allie Hulsey | 59 | Head | Metal Worker | Missouri |
| 4 | Beulah O. Hulsey | 57 | Wife | — | Texas |
| 5 | Edward F. Miller | 39 | Head | House Mover | Texas |
| 6 | Nellie Miller | 39 | Wife | — | Texas |
| 7 | Antoinette Halbert | 11 | Daughter | — | Texas |
| 8 | Gwendolyn Halbert | 9 | Daughter | — | Texas |
| 9 | Ralph Miller | 38 | Head | Salesman | Missouri |
| 10 | Jewell S. Miller | 36 | Wife | — | Georgia |
| 11 | Allen O. Kelsie | 40 | Head | Fireman | Texas |
| 12 | Irene Kelsie | 37 | Wife | — | Texas |
| 13 | Nellie W. Kelsie | 17 | Son | Clerk Loan Dept. | Texas |
| 14 | Ciegle Patterson | 69 | Head | Clerk | Kentucky |
| 15 | Ruby D. Patterson | 43 | Daughter | — | Texas |
| 16 | Ciegle Jr. Patterson | 39 | Son | Filing Clerk | Texas |
| 17 | Isaac S. Davis THIS PERSON | 34 | Head | Butcher | Texas |
| 18 | Creola S. Davis | 35 | Wife | — | Texas |
| 19 | Donald Davis | 4 | Son | — | Texas |
| 20 | Maydell S. Allen | 56 | Head | — | Texas |
| 21 | Frank Sebestik | 31 | Head | Shop Foreman | Czechoslovakia |
| 22 | Clarence M. Mckeen | 44 | Head | Glazer | Texas |
| 23 | Mary Mckeen | 42 | Wife | — | Texas |
| 24 | Dorothy Mckeen | 16 | Daughter | — | Texas |
| 25 | Leslie Mckeen | 11 | Son | — | Texas |
| 26 | Clarence Mckeen | 5 | Son | — | Texas |
| 27 | Eddie J. Workman | 58 | Head | Laborer | Texas |
| 28 | Margaret Workman | 48 | Wife | — | Texas |
| 29 | Helen Workman | 27 | Daughter | File Clerk | Texas |
| 30 | Jennie Workman | 17 | Daughter | Car Hop | Texas |
| 31 | Emily Workman | 15 | Daughter | — | Texas |
| 32 | Ernest Workman | 13 | Son | — | Texas |
| 33 | Thomas Workman | 11 | Son | — | Texas |
| 34 | Floy Workman | 8 | Daughter | — | Texas |
| 35 | Elizabeth Workman | 5 | Daughter | — | Texas |
| 36 | Marion Workman | 1 | Daughter | — | Texas |
| 37 | Jennie Lake | 73 | Mother-in-law | — | Illinois |
| 38 | Stanley Vodicka | 46 | Head | Shoemaker | Czechoslovakia |
| 39 | Vera Vodicka | 44 | Wife | — | Czechoslovakia |
| 40 | Stanley Jr. Vodicka | 16 | Son | — | Nebraska |
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)