JG
John Griffith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this John Griffith across the 1920, 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Victoria & James — first a son (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Male
Son
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Griffith |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Hanover Township |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Farmer |
| Township / Ward | Hanover Township |
| Est. Birth Year | ~1894 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Griffith | Head | — | 75 | ~1865 |
| Bertha Griffith | Other | — | 41 | ~1899 |
| Lester Brown | Other | — | 21 | ~1919 |
| John Griffith | Son | — | 46 | ~1894 |
Census Appearances
1920
Washington, Pennsylvania
Son, age 26
Washington, Pennsylvania · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Labour |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Washington, Pennsylvania
Son, age 36
Washington, Pennsylvania · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Dairy Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Son, age 46
Washington-County, Pennsylvania · implied b. ~1894 — 4 household members
| Surname | Griffith |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Hanover Township |
| 1935 Residence (County) | Washington |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | 8 |
| 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 John Griffith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Victoria Griffith (~0.92 confidence) and father James Griffith (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Victoria Griffith
b. ~1864
Source mother
● Household
· direct · ~0.92
Father
James Griffith
b. ~1865
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Griffith
Son · 1940 · age 46 · b. ~1894 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03623-00586)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry B Lake | 60 | Head | — | Virginia |
| 2 | Alice Lake | 57 | Wife | — | Virginia |
| 3 | Earl Lightner | 25 | Head | Manager | W Virginia |
| 4 | Agnes Lightner | 19 | Wife | Farmer | W Virginia |
| 5 | Chas A Bain | 61 | Head | — | Pennsylvania |
| 6 | Sarah Bain | 50 | Wife | Pumper | Pennsylvania |
| 7 | Clyde Bain | 15 | Son | — | Pennsylvania |
| 8 | Martha Bain | 10 | Daughter | — | Pennsylvania |
| 9 | Mable Bain | 4 | Daughter | — | Pennsylvania |
| 10 | Edna Bain | 17 | Daughter | Maid | Pennsylvania |
| 11 | Elma M Guffell | 50 | Head | — | Pennsylvania |
| 12 | Mary E Guffell | 24 | Daughter | Practical Nurse | Pennsylvania |
| 13 | William Schooley | 43 | Brother | Mechanic | Pennsylvania |
| 14 | Charles W Kepler | 65 | Head | Farmer | Ohio |
| 15 | Dorothy E Kepler | 33 | Wife | — | Ohio |
| 16 | Florence G Kepler | 6 | Daughter | — | Pennsylvania |
| 17 | Howard S Savage | 43 | Head | Farmer | Pennsylvania |
| 18 | Lena Savage | 43 | Wife | — | Pennsylvania |
| 19 | Shirley Savage | 12 | Daughter | — | Pennsylvania |
| 20 | Lois Savage | 15 | Daughter | — | Pennsylvania |
| 21 | James M Griffith | 75 | Head | — | Pennsylvania |
| 22 | John H Griffith THIS PERSON | 46 | Son | Farmer | Pennsylvania |
| 23 | Bertha H Griffith | 41 | Daughter-in-law | — | Pennsylvania |
| 24 | Lester Brown | 21 | Grandson | — | Pennsylvania |
| 25 | James M Armour | 71 | Head | — | Pennsylvania |
| 26 | Mable D Armour | 57 | Wife | — | Pennsylvania |
| 27 | F Edgar Armour | 54 | Head | Farmer | Pennsylvania |
| 28 | Anna W Armour | 52 | Wife | — | Pennsylvania |
| 29 | Mary Rea Armour | 20 | Daughter | — | Pennsylvania |
| 30 | Elmer L Trand | 37 | Head | Farmer | Pennsylvania |
| 31 | Irene Trand | 34 | Wife | — | Roumania |
| 32 | Floyd Trand | 10 | Son | — | Pennsylvania |
| 33 | Elizabeth Gebner | 54 | Mother-in-law | — | Roumania |
| 34 | Ostala Marshall | 78 | Head | — | W Virginia |
| 35 | Mary Marshall | 54 | Daughter | — | Pennsylvania |
| 36 | Clarence Marshall | 35 | Son | Laborer | Pennsylvania |
| 37 | William Sanders | 76 | Brother | — | W Virginia |
| 38 | Mary B Wriggle | 77 | Head | — | Pennsylvania |
| 39 | David P Wingfield | 68 | Head | — | Pennsylvania |
| 40 | Anna L Wingfield | 69 | Wife | — | Pennsylvania |
Related Census Records
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)