IT
Isaac Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Prince William, Virginia
Our Model Tree links this Isaac Thomas across the 1910, 1920 and 1930 US Censuses in Prince William, Virginia (XGBoost, ~Confirmed), with identified parents Theodore & Richard — first a son (b.~1904), then head of a 8-person household.
Age 26
b. ~1904
Male
Son
Born: Virginia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Prince William, Virginia |
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 23 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Occupation | Laborer |
| Industry | Highway |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Laborer |
| Township / Ward | Dumfries Magisterial District |
| Est. Birth Year | ~1904 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Isaac Thomas | Son | — | 26 | ~1904 |
| Ruth Thomas | Daughter | — | 4 | ~1926 |
| Lizzie Thomas | Spouse | — | 44 | ~1886 |
| Theodore Thomas | Head | — | 70 | ~1860 |
| Sinclair Thomas | Son | — | 2 | ~1928 |
| Rose Thomas | Daughter | — | 4 | ~1926 |
| Beatrice Thomas | Daughter | — | 8 | ~1922 |
| Ruth Thomas | Daughter | — | 3 | ~1927 |
Census Appearances
1910
Clarke, Virginia
Son, age 5
Clarke, Virginia · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1920
Frederick, Virginia
Son, age 16
Frederick, Virginia · implied b. ~1904 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Prince William, …
Son, age 26
Prince William, Virginia · implied b. ~1904 — 8 household members
| Surname | Thomas |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 23 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | Highway |
| Class of Worker | W |
| Can Read/Write | No |
| 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 (1910, 1920 and 1930) in 3 locations, using XGBoost record linkage. Identified parents: father Theodore Thomas (~0.92 confidence) and father Richard Thomas (~0.92 confidence) and mother Blanche Thomas (~0.92 confidence) and father Isaac Thomas (~0.92 confidence) and mother Emma Thomas (~0.92 confidence) and mother Lizzie Thomas (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Thomas
b. ~1860
Source father
● Household
· direct · ~0.92
Father
Richard Thomas
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Blanche Thomas
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Isaac Thomas
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Emma Thomas
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Thomas
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Thomas
Son · 1930 · age 26 · b. ~1904 · Virginia
★ You are viewing this record
Sibling
Rose Thomas
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sinclair Thomas
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Thomas
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Thomas
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Thomas
Sibling · 1930 · age 8
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
1930 US Federal Census — Prince William, Virginia
Open full size
1930 US Federal Census — Prince William, Virginia
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2456unit:0638)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Martha Cola | 45 | Head | Laborer | Virginia |
| 52 | Georgia Cola | 23 | Daughter | — | Virginia |
| 53 | Cornella Cola | 21 | Daughter | — | Virginia |
| 54 | Lula Cola | 18 | Daughter | — | Virginia |
| 55 | Phyllis Cola | 16 | Daughter | — | Virginia |
| 56 | Clyde Cola | 14 | Son | — | Virginia |
| 57 | James Cola | 12 | Son | — | Virginia |
| 58 | John Cola | 10 | Son | — | Virginia |
| 59 | Mary Cola | 8 | Daughter | — | Virginia |
| 60 | Virginia Cola | 5 | Daughter | — | Virginia |
| 61 | Morris Wilson | 37 | Head | Laborer | Virginia |
| 62 | Lula Wilson | 32 | Wife | — | Virginia |
| 63 | Beulah Wilson | 18 | Daughter | — | Virginia |
| 64 | James Wilson | 15 | Son | — | Virginia |
| 65 | Fred Wilson | 13 | Son | — | Virginia |
| 66 | Minnie Wilson | 8 | Daughter | — | Virginia |
| 67 | Elizabeth Wilson | 5 | Daughter | — | Virginia |
| 68 | Viola Wilson | 2 | Daughter | — | Virginia |
| 69 | Lloyd H Miller | 30 | Head | Laborer | Maryland |
| 70 | Mattie Miller | 42 | Wife | — | Virginia |
| 71 | Beulah West | 21 | Daughter | Housekeeper | Virginia |
| 72 | Howell West | 6 | Son | — | Virginia |
| 73 | Violet West | 4 | Daughter | — | Virginia |
| 74 | Jason Reynolds | 60 | Head | — | Virginia |
| 75 | Sallie Reynolds | 40 | Daughter | — | Virginia |
| 76 | Margaret Williams | 2 | Granddaughter | — | Virginia |
| 77 | Milburn Hulstead | 57 | Head | Farmer | Ohio |
| 78 | Pearl V Hulstead | 44 | Wife | — | Virginia |
| 79 | Joseph E Hulstead | 20 | Son | — | Virginia |
| 80 | Margaret Hulstead | 14 | Daughter | — | Virginia |
| 81 | Virginia Hulstead | 12 | Daughter | — | Virginia |
| 82 | Mike Slovenski | 39 | Head | Laborer | Slovakia |
| 83 | Anna S Slovenski | 33 | Wife | — | Colorado |
| 84 | Mike Jr Slovenski | 15 | Son | — | Alabama |
| 85 | John Slovenski | 10 | Son | — | Virginia |
| 86 | Annie Slovenski | 6 | Daughter | — | Virginia |
| 87 | Peter Slovenski | 2 | Son | — | Virginia |
| 88 | John E Thomas | 60 | Head | — | Virginia |
| 89 | Thomas | None | Wife | — | Virginia |
| 90 | Thomas | None | Son | Laborer | Virginia |
| 91 | Thomas | None | Daughter | — | Virginia |
| 92 | Thomas | None | Daughter | — | Virginia |
| 93 | Theodore Thomas | 70 | Head | — | Virginia |
| 94 | Lizzie Thomas | 44 | Wife | — | Virginia |
| 95 | Beatrice Thomas | 8 | Daughter | — | Virginia |
| 96 | Ruth Thomas | 4 | Daughter | — | Virginia |
| 97 | Rose Thomas | 4 | Daughter | — | Virginia |
| 98 | Ruth Thomas | 3 | Daughter | — | Virginia |
| 99 | Sinclair Thomas | 2 | Son | — | Virginia |
| 100 | Isaac Thomas THIS PERSON | 26 | Son | Laborer | Virginia |
Pedigree Summary
Isaac + 5 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)