RT
Robert Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Duval, Florida
Our Model Tree links this Robert Thomas across the 1910, 1920 and 1930 US Censuses in Duval, Florida (XGBoost, ~Confirmed), with identified parents Robert & Isaac — first a son (b.~1912), then head of a 7-person household.
Age 18
b. ~1912
Male
Son
Born: Florida
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Duval, Florida |
| Surname | Thomas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Precinct 32 |
| Est. Birth Year | ~1912 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Maude Davis | Daughter | — | 20 | ~1910 |
| Isaac Thomas | Head | — | 55 | ~1875 |
| Dorothy Davis | Other | — | 2 | ~1928 |
| Catherine Davis | Other | — | 1 | ~1929 |
| Robert Thomas | Son | — | 18 | ~1912 |
| Walter Thomas | Son | — | 17 | ~1913 |
| Calvin Thomas | Son | — | 15 | ~1915 |
Census Appearances
1910
Duval, Florida
Son, age 2
Duval, Florida · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1920
Duval, Florida
Son, age 11
Duval, Florida · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Occupation | Delivery Boy |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1930
Duval, Florida
Son, age 18
Duval, Florida · implied b. ~1912 — 7 household members
| Surname | Thomas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Robert Thomas across 3 US Census years (1910, 1920 and 1930) in Duval, Florida, using XGBoost record linkage. Identified parents: father Robert Thomas (~0.92 confidence) and father Isaac Thomas (~0.92 confidence) and mother Bertie Thomas (~0.60 confidence) and mother Delma Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Robert Thomas
b. ~1827
Source father
● Household
· direct · ~0.92
Father
Isaac Thomas
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bertie Thomas
b. ~1907
Source mother
● Household
· direct · ~0.6
Mother
Delma Thomas
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Thomas
Son · 1930 · age 18 · b. ~1912 · Florida
★ You are viewing this record
Sibling
Walter Thomas
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Thomas
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maude Davis
Sibling · 1930 · age 20
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 — Duval, Florida
Open full size
1930 US Federal Census — Duval, Florida
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula315unitrs:0248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eliza L | 14 | Daughter | — | Mississippi |
| 2 | Frederick | 12 | Son | — | Illinois |
| 3 | Alonzo J Phillips | 84 | Lodger | — | Florida |
| 4 | L William Manuel | 54 | Head | Fisherman | Florida |
| 5 | John E Sherriff | 46 | Head | Farmer | South Carolina |
| 6 | Willie V Sherriff | 32 | Wife | — | South Carolina |
| 7 | Judith E Sherriff | 8 | Daughter | — | South Carolina |
| 8 | William E Moore | 61 | Head | Farmer | Indiana |
| 9 | Evelyn M Moore | 54 | Wife | — | Indiana |
| 10 | Ada Finn | 25 | Daughter | — | Arkansas |
| 11 | Helen L Finn | 4 | Grand Daughter | — | Arkansas |
| 12 | Ray A Finn | 27 | Step Son | Yachtman | Arkansas |
| 13 | Melia Thompson | 65 | Head | Farm Manager | Florida |
| 14 | Andrew Thompson | 21 | Son | Laborer | Georgia |
| 15 | Isaac Thomas | 55 | Head | — | Florida |
| 16 | Robert Thomas THIS PERSON | 18 | Son | — | Florida |
| 17 | Walter Thomas | 17 | Son | — | Florida |
| 18 | Calvin Thomas | 15 | Son | — | Florida |
| 19 | Maude Davis | 20 | Daughter | — | Florida |
| 20 | Dorothy Davis | 2 | Grand Daughter | — | Florida |
| 21 | Catherine Davis | 1 | Grand Daughter | — | Florida |
| 22 | Willie Barton | 47 | Head | Farmer Mgr | South Carolina |
| 23 | Mamie Barton | 45 | Wife | — | South Carolina |
| 24 | Ellen Gilbert | 6 | Lodger | — | South Carolina |
| 25 | Alice Gilbert | 4 | Lodger | — | South Carolina |
| 26 | Minnie Mathews | 42 | Sister in Law | — | South Carolina |
| 27 | William H Fields | 43 | Head | Laborer | Georgia |
| 28 | Fannie Fields | 41 | Wife | — | Georgia |
| 29 | Romeo Nesby | 56 | Head | Gardner | South Carolina |
| 30 | Isabell Nesby | 8 | Daughter | — | Florida |
| 31 | Lucy Mcclory | 36 | Servant | Housekeeper | Florida |
| 32 | Albert A Graham | 59 | Head | Broom Mfg | Missouri |
| 33 | Ella M Graham | 53 | Wife | — | Texas |
| 34 | Sam B Barrow | 42 | Head | Const. Engineer | Florida |
| 35 | Belle M Barrow | 29 | Wife | — | Georgia |
| 36 | O. J. Howell | 72 | Father in Law | — | Georgia |
| 37 | Ada D Howell | 52 | Mother in Law | — | Georgia |
| 38 | O. J. Jr Howell | 26 | Brother in Law | Mechanic | Georgia |
| 39 | Addie L Howell | 23 | Sister in Law | — | Georgia |
| 40 | Oscar E Howell | 20 | Brother in Law | Laborer | Georgia |
| 41 | Elizabeth A Howell | 17 | Sister in Law | — | Georgia |
| 42 | Thomas E Howell | 14 | Brother in Law | — | Georgia |
| 43 | Christine B Howell | 11 | Sister in Law | — | Georgia |
| 44 | Addie B Holten | 77 | Aunt in Law | — | Georgia |
| 45 | Thos S Brown | 79 | Head | — | Scotland |
| 46 | Guy Dodgson | 33 | Head | Range Rider | Texas |
| 47 | Mona Dodgson | 29 | Wife | — | Florida |
| 48 | Robert H Thompson | 23 | Lodger | Range Rider | Georgia |
| 49 | Ida M Stevens | 63 | Head | Farmer | Ohio |
| 50 | Riley D Tompkins | 59 | Head | — | Florida |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 parents
~0.84
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)