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Frank Griffin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Duval, Florida
Our Model Tree links this Frank Griffin across the 1920, 1930 and 1940 US Censuses in Duval, Florida (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 10-person household.
Age 50
b. ~1880
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Duval, Florida |
| Surname | Griffin |
| Given Name | Frank A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 30 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Hotel |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Proprietor |
| Township / Ward | Jacksonville City |
| Est. Birth Year | ~1880 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Marie Griffin | Spouse | — | 46 | ~1884 |
| Frank Griffin | Son | — | 9 | ~1921 |
| Johanna Lewis | Other | — | 37 | ~1893 |
| H Lam | Other | — | 70 | ~1860 |
| Harry Mchann | Other | — | 57 | ~1873 |
| Frank Griffin | Head | — | 50 | ~1880 |
| Chester Gilmore | Other | — | 61 | ~1869 |
| Howard Brown | Other | — | 42 | ~1888 |
| Lewis Lewis | Other | — | 12 | ~1918 |
| Charles Bacher | Other | — | 34 | ~1896 |
Census Appearances
1920
Duval, Florida
Head, age 40
Duval, Florida · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Engineer |
| Industry | Ice Plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | Own |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Duval, Florida
Head, age 50
Duval, Florida · implied b. ~1880 — 10 household members
| Surname | Griffin |
| Given Name | Frank A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 30 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Proprietor |
| Industry | Hotel |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Duval-County, Florida
Head, age 61
Duval-County, Florida · implied b. ~1879 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | F. A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Duval |
| 1935 Residence (County) | Duval |
| Occupation | Manager |
| Industry | Amusement |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 5000 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Frank Griffin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Griffin
Head · 1930 · age 50 · b. ~1880 · Florida
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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
46 people indexed on this census page (ia:1930:15thcensus313unit:0168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Berkowitz | 43 | Head | Manager | Indiana |
| 2 | Amanda Berkowitz | 36 | Wife | — | Indiana |
| 3 | Betty P Berkowitz | 11 | Daughter | — | Indiana |
| 4 | Sophia Berkowitz | 64 | Mother | — | Hungary |
| 5 | Albert S Cerkovitz | 39 | Head | Manager | Indiana |
| 6 | Harry S Moss | 34 | Guest | Accountant | Massachusetts |
| 7 | Earl S Nash | 57 | Guest | Auditor | Illinois |
| 8 | Etta Nash | 55 | Guest | — | New York |
| 9 | Joe Mathews | 59 | Head | Manager | Georgia |
| 10 | Idella D Crews | 30 | Guest | Operator | Georgia |
| 11 | Eloise Samson | 38 | Guest | Clerical | New York |
| 12 | M C Jordan | 36 | Guest | Linotype Operator | New York |
| 13 | Fred Munson | 40 | Guest | Printer | Florida |
| 14 | Harry Traver | 36 | Guest | Trainman | Iowa |
| 15 | Robert G Whitley | 27 | Guest | Expressman | California |
| 16 | Richard W Finnefrock | 24 | Guest | Clerk | Pennsylvania |
| 17 | Margaret L Finnefrock | 24 | Guest | — | Georgia |
| 18 | Jake Mehrenberg | 58 | Guest | Mail Clerk | Tennessee |
| 19 | Moselle Bebout | 27 | Guest | Cashier | Florida |
| 20 | Robert E Allen | 38 | Guest | Operator | Illinois |
| 21 | William A Neide | 35 | Guest | Yardmaster | Missouri |
| 25 | G W Price | 74 | Guest | — | Pennsylvania |
| 26 | John C Tamshell | 78 | Guest | Druggist | Pennsylvania |
| 27 | George Paulos | 36 | Guest | Proprietor | Greece |
| 28 | Charles Lynch | 49 | Guest | Accountant | Ohio |
| 29 | Frank A Griffin THIS PERSON | 50 | Head | Proprietor | Pennsylvania |
| 30 | Marie S Griffin | 46 | Wife | — | New York |
| 31 | Frank A Jr Griffin | 9 | Son | — | Florida |
| 32 | H P Lam | 70 | Guest | — | Virginia |
| 33 | Howard S Brown | 42 | Guest | Motor Transportation | North Carolina |
| 34 | Harry T Mchann | 57 | Guest | Salesman | Illinois |
| 35 | Charles Bacher | 34 | Guest | Salesman | New York |
| 36 | Chester Gilmore | 61 | Clerk | Clerk | Massachusetts |
| 37 | Johanna A Lewis | 37 | Guest | Clerk | Florida |
| 38 | Lewis Lewis | 12 | Guest | — | Florida |
| 39 | Jones | None | — | — | — |
| 41 | Herman L Johnson | 30 | Head | Proprietor | Florida |
| 42 | Aurelia Johnson | 39 | Wife | House Keeper | Alabama |
| 43 | Ida M Templeton | 39 | Guest | — | South Carolina |
| 44 | Robert A Templeton | 23 | Guest | Clerk | North Carolina |
| 45 | Donald Charles | 23 | Guest | Asst Mail Clerk | Florida |
| 46 | William Pash | 60 | Guest | — | Illinois |
| 47 | Michael Ford | 50 | Guest | Cleaner | Massachusetts |
| 48 | Lila D Fox | 29 | Head | Manager | Georgia |
| 49 | Mable Brooks | 17 | Roomer | Waitress | United States |
| 50 | Alma Jones | 17 | Roomer | Waitress | 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)