MW
Mary Williamson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Orange, Florida
Our Model Tree links this Mary Williamson across the 1920 and 1930 US Censuses in Orange, Florida (XGBoost, ~Confirmed) — first a daughter (b.~1901), then head of a 11-person household.
Age 29
b. ~1901
Female
Daughter
Born: Florida
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Orange, Florida |
| Surname | Williamson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Precinct 12 Outside Oakland Town |
| Est. Birth Year | ~1901 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Williamson | Daughter | — | 35 | ~1895 |
| Helen Williamson | Daughter | — | 25 | ~1905 |
| Ethel Williamson | Daughter | — | 31 | ~1899 |
| Mary Williamson | Daughter | — | 29 | ~1901 |
| Lizzie Williamson | Head | — | 62 | ~1868 |
| George Williamson | Son | — | 38 | ~1892 |
| Isreal Williamson | Son | — | 37 | ~1893 |
| James Williamson | Son | — | 39 | ~1891 |
| William Williamson | Son | — | 33 | ~1897 |
| Marcus Williamson | Son | — | 27 | ~1903 |
| Vernon Williamson | Son | — | 22 | ~1908 |
Census Appearances
1920
Orange, Florida
Daughter, age 19
Orange, Florida · implied b. ~1901 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Marion |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1930
Orange, Florida
Daughter, age 29
Orange, Florida · implied b. ~1901 — 11 household members
| Surname | Williamson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| 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 Mary Williamson across 2 US Census years (1920 and 1930) in Orange, Florida, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Williamson
Daughter · 1930 · age 29 · b. ~1901 · Florida
★ You are viewing this record
Sibling
Isreal Williamson
Sibling · 1930 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Williamson
Sibling · 1930 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Williamson
Sibling · 1930 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcus Williamson
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Williamson
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Williamson
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Williamson
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Williamson
Sibling · 1930 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Williamson
Sibling · 1930 · age 33
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 — Orange, Florida
Open full size
1930 US Federal Census — Orange, Florida
Page Contents
50 people indexed on this census page (ia:1930:15thcensus327unit:0304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Stevenson | 21 | Head | Laborer | South Carolina |
| 2 | Fannie Stevenson | 19 | Wife | — | Florida |
| 3 | John Brant | 24 | Boarder | Laborer | Georgia |
| 4 | James H Riddick | 61 | Head | Proprietor | Georgia |
| 5 | Willie M Riddick | 51 | Wife | — | Alabama |
| 6 | Inez Riddick | 19 | Daughter | — | Georgia |
| 7 | Jewell Riddick | 17 | Daughter | — | Georgia |
| 8 | Julian G Sadler | 34 | Head | Farmer | Florida |
| 9 | Mamie Sadler | 29 | Wife | — | Georgia |
| 10 | Jean Sadler | 6 | Daughter | — | Florida |
| 11 | Douglas Sadler | 2 | Son | — | Florida |
| 12 | Robert D Lightfoot | 33 | Head | Laborer | Georgia |
| 13 | Marine Lightfoot | 21 | Wife | — | Florida |
| 14 | Harry J Rogers | 47 | Head | Agent | Pennsylvania |
| 15 | Gertrude H Rogers | 40 | Wife | — | England |
| 16 | Gertrude M Rogers | 16 | Daughter | — | Pennsylvania |
| 17 | Harry J Rogers | 15 | Son | — | Pennsylvania |
| 18 | Florence I Rogers | 13 | Daughter | — | Pennsylvania |
| 19 | Alberta I Rogers | 12 | Daughter | — | Pennsylvania |
| 20 | Edmund A Rogers | 11 | Son | — | Pennsylvania |
| 21 | Frank E Rogers | 17 | Brother | — | Pennsylvania |
| 22 | Seth A Davis | 35 | Head | Engineer | Florida |
| 23 | Ada Davis | 30 | Wife | — | Florida |
| 24 | Ches H Tinch | 37 | Head | Farmer | Florida |
| 25 | Liddie Tinch | 48 | Wife | — | Illinois |
| 26 | Harry A Tinch | 19 | Son | Laborer | Florida |
| 27 | Fred A Tinch | 14 | Son | — | Florida |
| 28 | Helen A Tinch | 10 | Daughter | — | Florida |
| 29 | Neil E Tinch | 7 | Son | — | Florida |
| 30 | Fred W Lemfers | 74 | Head | — | Iowa |
| 31 | Jane A Lemfers | 70 | Wife | — | Indiana |
| 32 | Lizzie Williamson | 62 | Head | Farmer | Kentucky |
| 33 | James C Williamson | 39 | Son | Laborer | Florida |
| 34 | George Williamson | 38 | Son | Farmer | Florida |
| 35 | Isreal G Williamson | 37 | Son | Laborer | Florida |
| 36 | Marie Williamson | 35 | Daughter | — | Florida |
| 37 | William Williamson | 33 | Son | Laborer | Florida |
| 38 | Ethel Williamson | 31 | Daughter | — | Florida |
| 39 | Mary Williamson THIS PERSON | 29 | Daughter | — | Florida |
| 40 | Marcus Williamson | 27 | Son | Laborer | Florida |
| 41 | Helen Williamson | 25 | Daughter | — | Florida |
| 42 | Vernon R Williamson | 22 | Son | Laborer | Florida |
| 43 | Earl Ford | 43 | Head | Farmer | Tennessee |
| 44 | Minnie Ford | 40 | Wife | — | Georgia |
| 45 | Earl Jr Ford | 24 | Son | Laborer | Tennessee |
| 46 | Dollie Ford | 20 | Wife | — | Tennessee |
| 47 | Leo Ford | 5 | Son | — | Florida |
| 48 | Ruth Ford | 2 | Daughter | — | Florida |
| 49 | Elizabeth Ford | 1 | Daughter | — | Florida |
| 50 | Shell Ryland | 62 | Head | — | Florida |
Related Census Records
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)