JG
Joseph Griffin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pinellas-County, Florida
Our Model Tree links this Joseph Griffin across the 1930 and 1940 US Censuses in Pinellas-County, Florida (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Male
Son
Born: Florida
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pinellas-County, Florida |
| Surname | Griffin |
| Given Name | Joseph C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Clearwater city |
| 1935 Residence (County) | Pinellas |
| Additional Details | |
| Occupation | Asst. Telephone Repairman |
| Industry | Telephone Company |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 450 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Occupation | Asst. Telephone Repairman |
| Township / Ward | Clearwater City |
| Est. Birth Year | ~1921 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Lillian Griffin | Spouse | — | 40 | ~1900 |
| Johnnie Griffin | Daughter | — | 14 | ~1926 |
| Corrine Griffin | Daughter | — | 17 | ~1923 |
| Aubrey Griffin | Son | — | 22 | ~1918 |
| Jessie Griffin | Daughter | — | 21 | ~1919 |
| Helen Comine | Other | — | 22 | ~1918 |
| Lloyd Griffin | Head | — | 48 | ~1892 |
| Joseph Griffin | Son | — | 19 | ~1921 |
| Wanell Griffin | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Pinellas, Florida
Son, age 9
Pinellas, Florida · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| 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 |
1940
Pinellas-County, Florida
Son, age 19
Pinellas-County, Florida · implied b. ~1921 — 9 household members
| Surname | Griffin |
| Given Name | Joseph C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Florida |
| 1935 Residence (City) | Clearwater city |
| 1935 Residence (County) | Pinellas |
| Occupation | Asst. Telephone Repairman |
| Industry | Telephone Company |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 450 |
| Highest Grade | H-2 |
| 1935 Residence | Same house |
| 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 Joseph Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Griffin
Son · 1940 · age 19 · b. ~1921 · Florida
★ You are viewing this record
Sibling
Jessie Griffin
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aubrey Griffin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wanell Griffin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnnie Griffin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Corrine Griffin
Sibling · 1940 · age 17
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 — Pinellas-County, Florida
Open full size
1940 US Federal Census — Pinellas-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00611-00416)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cherry Anna Mathee | 4 | Daughter | — | Florida |
| 42 | Sandra M Mathee | 3 | Daughter | — | Florida |
| 43 | Thomas M Mathee | 1 | Son | — | Florida |
| 44 | Samuel W Harville | 83 | Head | — | Florida |
| 45 | Sarah E Harville | 80 | Wife | — | Florida |
| 46 | Newton B Barlow | 34 | Head | Painter | Georgia |
| 47 | Mary S Barlow | 30 | Wife | Seamstress | Georgia |
| 48 | Virginia S Barlow | 12 | Daughter | — | Georgia |
| 49 | Fay M Barlow | 9 | Daughter | — | Florida |
| 50 | Lloyd Griffin | 48 | Head | Rural Mail Carrier | Florida |
| 51 | Lillian V Griffin | 40 | Wife | — | Florida |
| 52 | Aubrey S Griffin | 22 | Son | Salesman | Florida |
| 53 | Jessie Mae Griffin | 21 | Daughter | Receptionist | Florida |
| 54 | Corrine Griffin | 17 | Daughter | — | Florida |
| 55 | Johnnie Griffin | 14 | Daughter | — | Florida |
| 56 | Wanell Griffin | 10 | Daughter | — | Florida |
| 57 | Joseph C Griffin THIS PERSON | 19 | Son | Asst. Telephone Repairman | Florida |
| 58 | Helen Comine | 22 | Lodger | Waitress | New York |
| 59 | John T Wells | 41 | Head | Truck Driver | Tennessee |
| 60 | Annie G Wells | 30 | Wife | — | Georgia |
| 61 | Julia G Wells | 8 | Daughter | — | Florida |
| 62 | John A Wells | 4 | Son | — | Florida |
| 63 | Florence C Wells | 73 | Mother | — | Tennessee |
| 64 | Laura L Hardee | 18 | Sister-law | — | Florida |
| 65 | Garland E Beatty | 27 | Head | Salesman | North Carolina |
| 66 | Nina B Beatty | 26 | Wife | — | Kentucky |
| 67 | William J Beatty | 3 | Son | — | Florida |
| 68 | Lillie C Tucker | 73 | Head | — | Indiana |
| 69 | Dora E Whitfield | 63 | Head | — | Georgia |
| 70 | Agnes Whitfield | 28 | Daughter | Salad Maker | Georgia |
| 71 | Charles A Whitfield | 25 | Son | Laborer | Georgia |
| 72 | Nina S Whitfield | 42 | Daughter | Finisher | Georgia |
| 73 | John C Gatlin | 28 | Head | Laborer | Florida |
| 74 | Clara B Gatlin | 26 | Wife | — | Georgia |
| 75 | Joyce Gatlin | 4 | Daughter | — | Georgia |
| 76 | John E Jr Gatlin | 0 | Son | — | Florida |
| 77 | Ran Gatlin | 16 | Brother | — | Florida |
| 78 | Clarence S Sparks | 30 | Head | Driver | Tennessee |
| 79 | Christine J Sparks | 27 | Wife | — | Florida |
| 80 | Clifford M Sparks | 5 | Son | — | 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)