AG
Alice Griffin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hillsborough-County, Florida
Our Model Tree links this Alice Griffin across the 1930 and 1940 US Censuses in Hillsborough-County, Florida (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Florida
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hillsborough-County, Florida |
| Surname | Griffin |
| Given Name | Alice H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Tampa City |
| 1935 Residence (County) | Hillsboro |
| Additional Details | |
| Industry | none |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Tampa City |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alice | Age | Birth yr |
|---|---|---|---|---|
| Gay Griffin | Son | — | 9 | ~1931 |
| Mary Griffin | Daughter | — | 9 | ~1931 |
| Elbert Griffin | Son | — | 17 | ~1923 |
| Mary Griffin | Daughter | — | 19 | ~1921 |
| Alice Griffin | Daughter | — | 12 | ~1928 |
| Grace Griffin | Daughter | — | 13 | ~1927 |
| Kathryn Griffin | Spouse | — | 40 | ~1900 |
| Logan Griffin | Head | — | 42 | ~1898 |
| Benny Griffin | Son | — | 8 | ~1932 |
Census Appearances
1930
Hillsborough, Florida
Daughter, age 2
Hillsborough, Florida · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Alice M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Florida |
| Father's Birthplace | Florida |
| Mother's Birthplace | Pennsylvania |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Hillsborough-County, Florida
Daughter, age 12
Hillsborough-County, Florida · implied b. ~1928 — 9 household members
| Surname | Griffin |
| Given Name | Alice H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Tampa City |
| 1935 Residence (County) | Hillsboro |
| Industry | none |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Alice Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alice Griffin
Daughter · 1940 · age 12 · b. ~1928 · Florida
★ You are viewing this record
Sibling
Elbert Griffin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Griffin
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benny Griffin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Griffin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Griffin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gay Griffin
Sibling · 1940 · age 9
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
1940 US Federal Census — Hillsborough-County, Florida
Open full size
1940 US Federal Census — Hillsborough-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00635-00678)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward S. Pendergrass | 39 | Head | Minister | South Carolina |
| 2 | Lois S. Pendergrass | 34 | Wife | None | Ohio |
| 3 | Jane S. Pendergrass | 7 | Daughter | — | Florida |
| 4 | Eddie E. Pendergrass | 1 | Daughter | — | Florida |
| 5 | John S. Woolweaver | 60 | Head | Supervisor | Ohio |
| 6 | Lucy C. Woolweaver | 58 | Wife | None | Ohio |
| 7 | Roy L. Woolweaver | 19 | Son | Delivery Boy | Florida |
| 8 | Mary L. Woolweaver | 18 | Daughter | None | Florida |
| 9 | Gary H. Dennard | 28 | Head | Salesman | Georgia |
| 10 | Mildred D. Dennard | 29 | Wife | None | Florida |
| 11 | Willie S. Dennard | 8 | Daughter | — | Florida |
| 12 | James E. Dennard | 6 | Son | — | Florida |
| 13 | Mary Ann Dennard | 5 | Daughter | — | Florida |
| 14 | Gary Dennard | 2 | Son | — | Florida |
| 15 | John Dennard | 1 | Son | — | Florida |
| 16 | Chas Dennard | 18 | Brother | Laborer | Florida |
| 17 | Logan Griffin | 42 | Head | Salesman | Florida |
| 18 | Kathryn D. Griffin | 40 | Wife | None | Pennsylvania |
| 19 | Mary Louise Griffin | 19 | Daughter | — | Florida |
| 20 | Elbert Griffin | 17 | Son | — | Florida |
| 21 | Grace H. Griffin | 13 | Daughter | — | Florida |
| 22 | Alice H. Griffin THIS PERSON | 12 | Daughter | — | Florida |
| 23 | Gay O. Griffin | 9 | Son | — | Florida |
| 24 | Mary E. Griffin | 9 | Daughter | — | Florida |
| 25 | Benny Griffin | 8 | Son | — | Florida |
| 26 | John E. Hobbs | 58 | Head | None | South Carolina |
| 27 | Robert L. Hobbs | 29 | Son | Salesman | Florida |
| 28 | Richard D. Hobbs | 29 | Son | Salesman | Florida |
| 29 | John E. Hobbs | 17 | Son | — | Florida |
| 30 | Harry M. Hobbs | 14 | Son | — | Florida |
| 31 | Robert Roddenberry | 36 | Head | Barber | Florida |
| 32 | Isabelle D. Roddenberry | 36 | Wife | — | Kentucky |
| 33 | Bobby Roddenberry | 12 | Son | — | Florida |
| 34 | Walter R. Brown | 50 | Head | Mail Carrier | Georgia |
| 35 | Viola Brown | 40 | Wife | — | Florida |
| 36 | Thelma M. Brown | 19 | Daughter | — | Florida |
| 37 | Gertrude Austin | 45 | Lodger | Checker | Florida |
| 38 | Angus Williams | 47 | Head | Salesman | Florida |
| 39 | Mildred D. Williams | 43 | Wife | None | Florida |
| 40 | Sarah L. Williams | 12 | Daughter | — | Florida |
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)