JG
James Griffith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ringgold-County, Iowa
Our Model Tree links this James Griffith across the 1920, 1930 and 1940 US Censuses in Ringgold-County, Iowa (XGBoost, ~Confirmed), with identified parents Arthur & Joshua — first a head (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ringgold-County, Iowa |
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Middle Fork Township |
| 1935 Residence (County) | Ringgold County |
| Additional Details | |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Middle Fork Township |
| Est. Birth Year | ~1911 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| John Van Dyach | Other | — | 9 | ~1931 |
| Marilyn Griffith | Daughter | — | 3 | ~1937 |
| James Griffith | Head | — | 29 | ~1911 |
| Cleola Griffith | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Ringgold, Iowa
Son, age 9
Ringgold, Iowa · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Ringgold, Iowa
Son, age 19
Ringgold, Iowa · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Ringgold-County, Iowa
Head, age 29
Ringgold-County, Iowa · implied b. ~1911 — 4 household members
| Surname | Griffith |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Middle Fork Township |
| 1935 Residence (County) | Ringgold County |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 James Griffith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Griffith (~0.92 confidence) and father Joshua Griffith (~0.92 confidence) and mother Sarah Griffith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Griffith
b. ~1851
Source father
● Household
· direct · ~0.92
Father
Joshua Griffith
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Sarah Griffith
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Griffith
Head · 1940 · age 29 · b. ~1911 · Iowa
★ 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 — Ringgold-County, Iowa
Open full size
1940 US Federal Census — Ringgold-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01201-00173)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Allen B Humphreys | 49 | Head | Farmer | Iowa |
| 2 | Marguerite Humphreys | 44 | Wife | — | Iowa |
| 3 | C Robert Humphreys | 22 | Son | Farmer | Iowa |
| 4 | Jean Humphreys | 18 | Daughter | — | Iowa |
| 5 | Patricia Humphreys | 13 | Daughter | — | Iowa |
| 6 | Wilbur Sutherland | 32 | Head | Farmer | Iowa |
| 7 | Ruth O Sutherland | 30 | Wife | — | Iowa |
| 8 | Robert Sutherland | 12 | Step-son | — | Iowa |
| 9 | Wilberta Sutherland | 9 | Daughter | — | Kansas |
| 10 | Homer O Denney | 54 | Head | Farmer | Iowa |
| 11 | Myrtle Denney | 54 | Wife | — | Iowa |
| 12 | Bernice Denney | 20 | Daughter | — | Iowa |
| 13 | H Robert Denney | 18 | Son | Farmer | Iowa |
| 14 | Russell R Wiley | 27 | Head | Farmer | Iowa |
| 15 | Kathlin Wiley | 23 | Wife | — | Iowa |
| 16 | Joyce Marie Wiley | 5 | Daughter | — | Iowa |
| 17 | James Griffith THIS PERSON | 29 | Head | Farmer | Iowa |
| 18 | Cleola O Griffith | 28 | Wife | Attendant | Iowa |
| 19 | Marilyn Griffith | 3 | Daughter | — | Iowa |
| 20 | John A Van Dyach | 9 | Step-son | — | Missouri |
| 21 | Howard Guthrie | 21 | Head | Farmer | Iowa |
| 22 | Mary O Guthrie | 21 | Wife | — | Missouri |
| 23 | Annie O Guthrie | 65 | Head | — | Iowa |
| 24 | John Shields | 22 | Head | Farmer | Iowa |
| 25 | Annabel O Shields | 19 | Wife | — | Missouri |
| 26 | E O Gilsand | 74 | Head | — | Iowa |
| 27 | Harve Maudlin | 55 | Head | Farmer | Iowa |
| 28 | Grace Maudlin | 58 | Wife | — | Missouri |
| 29 | John Shaffer | 26 | Step-son | Farmer | Iowa |
| 30 | Clyde Howie | 33 | Head | Farmer | Iowa |
| 31 | Marie O Howie | 33 | Wife | — | Iowa |
| 32 | Virgil Howie | 13 | Son | — | Iowa |
| 33 | Alvina Howie | 12 | Daughter | — | Iowa |
| 34 | Delores Howie | 10 | Daughter | — | Iowa |
| 35 | Leroy Howie | 7 | Son | — | Iowa |
| 36 | Lowell Howie | 4 | Son | — | Iowa |
| 37 | Ernest O Black | 38 | Head | Farmer | Virginia |
| 38 | Sadie Black | 31 | Wife | — | Missouri |
| 39 | Betty Lou Black | 5 | Daughter | — | Iowa |
| 40 | Annabel Black | 3 | Daughter | — | Iowa |
Pedigree Summary
James
Gen 1 · 3 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)