IT
Isaac Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nelson-County, Virginia
Our Model Tree links this Isaac Thomas across the 1920, 1930 and 1940 US Censuses in Nelson-County, Virginia (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nelson-County, Virginia |
| Surname | Thomas |
| Given Name | Isaac H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Schuyler District |
| 1935 Residence (County) | Nelson |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Farmer |
| Township / Ward | Schuyler District |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Annie Thomas | Daughter | — | 14 | ~1926 |
| Lizzie Thomas | Spouse | — | 47 | ~1893 |
| Isaac Thomas | Head | — | 53 | ~1887 |
Census Appearances
1920
Dinwiddie, Virginia
Head, age 32
Dinwiddie, Virginia · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | Saw mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Nansemond, Virginia
Head, age 43
Nansemond, Virginia · implied b. ~1887 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 25 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | No |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Nelson-County, Virginia
Head, age 53
Nelson-County, Virginia · implied b. ~1887 — 3 household members
| Surname | Thomas |
| Given Name | Isaac H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Schuyler District |
| 1935 Residence (County) | Nelson |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | 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 Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Isaac Thomas
Head · 1940 · age 53 · b. ~1887 · Virginia
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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 — Nelson-County, Virginia
Open full size
1940 US Federal Census — Nelson-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04278-00997)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eula Bridgewater | 40 | Head | Maid | Virginia |
| 42 | William Bridgewater | 11 | Son | Laborer | Virginia |
| 43 | Ed M. Bailey | 60 | Head | Laborer | Virginia |
| 44 | Mollie Bailey | 57 | Wife | — | Virginia |
| 45 | Willie Jones | 58 | Head | — | Virginia |
| 46 | William Jones | 30 | Son | Laborer | Virginia |
| 47 | Arthur J. Jones | 24 | Son | Laborer | Virginia |
| 48 | Henry J. Brown | 35 | Head | Farmer | Virginia |
| 49 | Eula G. Brown | 22 | Wife | — | Virginia |
| 50 | Wm Mckinley Harris | 40 | Head | Farmer | Virginia |
| 51 | Lizzie Harris | 38 | Wife | — | Virginia |
| 52 | Irene Harris | 13 | Daughter | — | Virginia |
| 53 | Cornelia Harris | 10 | Daughter | — | Virginia |
| 54 | Mildred Harris | 8 | Daughter | — | Virginia |
| 55 | Tony Harris | 6 | Son | — | Virginia |
| 56 | Pauline Harris | 4 | Daughter | — | Virginia |
| 57 | Thomas Harris | 2 | Son | — | Virginia |
| 58 | Shirley Harris | 1 | Daughter | — | Virginia |
| 59 | John D. Jones | 38 | Head | — | Virginia |
| 60 | Elsie Jones | 35 | Wife | — | Virginia |
| 61 | Hallenick H. Jones | 18 | Son | Laborer | Virginia |
| 62 | Robert S. Harris | 35 | Head | Laborer | Virginia |
| 63 | Magnolia Harris | 30 | Wife | — | Virginia |
| 64 | James Harris | 10 | Son | — | Virginia |
| 65 | Christine Harris | 7 | Daughter | — | Virginia |
| 66 | Rubin Harris | 5 | Son | — | Virginia |
| 67 | Isaac H. Thomas THIS PERSON | 53 | Head | Farmer | Virginia |
| 68 | Lizzie Thomas | 47 | Wife | — | Virginia |
| 69 | Annie May Thomas | 14 | Daughter | — | Mississippi |
| 70 | Johnnie Harris | 50 | Head | Farmer | Virginia |
| 71 | Pearl E. Harris | 46 | Wife | — | Virginia |
| 72 | Robert Mc Simpson | 48 | Head | Farmer | Virginia |
| 73 | Lottie M. Simpson | 43 | Wife | — | Virginia |
| 74 | Robert J. Simpson | 14 | Son | — | Virginia |
| 75 | John H. Simpson | 13 | Son | — | Virginia |
| 76 | Mary A. Simpson | 7 | Daughter | — | Virginia |
| 77 | Helen R. Simpson | 5 | Daughter | — | Virginia |
| 78 | Ann W. Simpson | 2 | Daughter | — | Virginia |
| 79 | Bennington Raymond Simpson | 28 | Head | Truck Driver | Virginia |
| 80 | Mary Virginia Simpson | 25 | Wife | — | Virginia |
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)