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Roy Williams — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Seminole, Florida
Our Model Tree links this Roy Williams across the 1930 and 1940 US Censuses in Seminole, Florida (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 8-person household.
Age 13
b. ~1917
Male
Son
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Seminole, Florida |
| Surname | Williams |
| Given Name | Roy H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | City Of Sanford |
| Est. Birth Year | ~1917 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Eulamae Scott | Daughter | — | 10 | ~1920 |
| Lannie Boston | Daughter | — | 4 | ~1926 |
| Mamie Cunningham | Daughter | — | 3 | ~1927 |
| Leona Scott | Daughter | — | 8 | ~1922 |
| Willie Cunningham | Daughter | — | 6 | ~1924 |
| Nora Williams | Head | — | 29 | ~1901 |
| Henry Scott | Son | — | 12 | ~1918 |
| Roy Williams | Son | — | 13 | ~1917 |
Census Appearances
1930
Seminole, Florida
Son, age 13
Seminole, Florida · implied b. ~1917 — 8 household members
| Surname | Williams |
| Given Name | Roy H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Seminole-County, Florida
Other, age 24
Seminole-County, Florida · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | William |
| Given Name | Roy |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Sanford City |
| 1935 Residence (County) | Seminole |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 288 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Roy Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Roy Williams
Son · 1930 · age 13 · b. ~1917 · Florida
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Sibling
Mamie Cunningham
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Scott
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lannie Boston
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Cunningham
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Scott
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eulamae Scott
Sibling · 1930 · age 10
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 — Seminole, Florida
Open full size
1930 US Federal Census — Seminole, Florida
Page Contents
50 people indexed on this census page (ia:1930:15thcensus332unit:0902)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa Costalard | 41 | Wife | — | Georgia |
| 2 | Nora Williams | 29 | Head | Laundress | Georgia |
| 3 | Roy H Williams THIS PERSON | 13 | Son | — | South Carolina |
| 4 | Henry Scott | 12 | Son | — | Florida |
| 5 | Eulamae Scott | 10 | Daughter | — | Florida |
| 6 | Leona Scott | 8 | Daughter | — | Florida |
| 7 | Lannie Boston | 4 | Daughter | — | Florida |
| 8 | Willie Cunningham | 6 | Daughter | — | Florida |
| 9 | Mamie Cunningham | 3 | Daughter | — | Florida |
| 10 | Henry Davis | 46 | Head | Laborer | Georgia |
| 11 | Moses Brown | 34 | Head | Laborer | Florida |
| 12 | Clara Brown | 18 | Daughter | Laborer | Florida |
| 13 | John H Brown | 15 | Son | Laborer | Florida |
| 14 | Joe Brown | 12 | Son | — | Florida |
| 15 | Willie Brown | 9 | Son | — | Florida |
| 16 | Julia Brown | 6 | Daughter | — | Florida |
| 17 | Juanita Alexander | 0 | Daughter | — | Florida |
| 18 | Delia Garrett | 38 | Head | Laborer | Virginia |
| 19 | Bessie C Garrett | 26 | Wife | Laborer | Florida |
| 20 | Joseph Savage | 13 | Step-son | — | Florida |
| 21 | Joshua H Williams | 37 | Head | Laborer | Florida |
| 22 | Lizzie Williams | 33 | Wife | Laborer | Florida |
| 23 | John H Jr Williams | 13 | Son | — | Florida |
| 24 | Josephine Griffin | 21 | Head | Servant | Georgia |
| 25 | James Griffin | 6 | Son | — | Georgia |
| 26 | Robert Griffin | 2 | Son | — | Georgia |
| 27 | Joseph Washington | 49 | Head | Laborer | South Carolina |
| 28 | Joseph Jr Washington | 5 | Son | — | Florida |
| 29 | Leon Washington | 2 | Son | — | Florida |
| 30 | Daniel St Clair | 39 | Head | Laborer | Florida |
| 31 | Hannah St Clair | 52 | Mother | — | Florida |
| 32 | Ethel M St Clair | 1 | Daughter | — | Florida |
| 33 | Uno Rocky | 26 | Head | Laborer | Florida |
| 34 | Marie E Rocky | 23 | Wife | — | Florida |
| 35 | Uno Jr Rocky | 4 | Son | — | Florida |
| 36 | H William Rocky | 3 | Son | — | Florida |
| 37 | Annamae Rocky | 1 | Daughter | — | Florida |
| 38 | Lazarus Low | 49 | Head | Laborer | South Carolina |
| 39 | Clara Low | 36 | Wife | Cook | Florida |
| 40 | Lillian Crane | 14 | Niece | — | Florida |
| 41 | Elizabeth Green | 59 | Head | Laborer | Florida |
| 42 | Raymond Green | 22 | Brother | Laborer | Florida |
| 43 | Jack Johnson | 19 | Boarder | Laborer | Florida |
| 44 | Frank Williams | 22 | Boarder | Laborer | Florida |
| 45 | Erasmus Green | 18 | Boarder | Laborer | Texas |
| 46 | Buck Robinson | 19 | Boarder | Laborer | Florida |
| 47 | Edward Thurman | 34 | Head | Mechanic | South Carolina |
| 48 | Eddie Brown | 36 | Head | Laborer | Florida |
| 49 | Cassie Brown | 28 | Wife | Cook | Florida |
| 50 | Thomas Williams | 38 | Head | Laborer | Georgia |
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)