JC
Joseph Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Grayson-County, Kentucky
Our Model Tree links this Joseph Clark across the 1920, 1930 and 1940 US Censuses in Grayson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Idonia & Isaac — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grayson-County, Kentucky |
| Surname | Clark |
| Given Name | Joseph P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Grayson |
| 1935 Residence (County) | Grayson |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Laborer |
| Township / Ward | Big Clifty |
| Est. Birth Year | ~1912 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Clark | Head | — | 28 | ~1912 |
| Joseph Clark | Son | — | 3 | ~1937 |
| Samuel Clark | Son | — | 2 | ~1938 |
| Rosa Clark | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Grayson, Kentucky
Son, age 8
Grayson, Kentucky · implied b. ~1912 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Joseph P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Grayson, Kentucky
Son, age 18
Grayson, Kentucky · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Joseph P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Grayson-County, Kentucky
Head, age 28
Grayson-County, Kentucky · implied b. ~1912 — 4 household members
| Surname | Clark |
| Given Name | Joseph P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Grayson |
| 1935 Residence (County) | Grayson |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 35 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Idonia Clark (~0.92 confidence) and father Isaac Clark (~0.92 confidence) and father Tho Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Idonia Clark
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Isaac Clark
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Tho Clark
b. ~1868
Source father
● Household
· direct · ~0.92
This person
Anchor record
Joseph Clark
Head · 1940 · age 28 · b. ~1912 · Kentucky
★ 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 — Grayson-County, Kentucky
Open full size
1940 US Federal Census — Grayson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01310-00314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Malisia Hazelwood | 59 | Wife | — | Kentucky |
| 2 | Eugene Hazelwood | 20 | Son | — | Kentucky |
| 3 | Pauline Hazelwood | 20 | Daughter | — | Kentucky |
| 4 | Juanita Hazelwood | 19 | Daughter | — | Kentucky |
| 5 | Margaret Hazelwood | 16 | Daughter | — | Kentucky |
| 6 | Betsy D. Johnson | 58 | Head | — | Kentucky |
| 7 | James S. Johnson | 25 | Son | Operator | Kentucky |
| 8 | Margerite Johnson | 21 | Daughter | — | Kentucky |
| 9 | Herman B. Johnson | 29 | Head | Laborer | Kentucky |
| 10 | Susan Johnson | 24 | Wife | — | Kentucky |
| 11 | Dora Ann Johnson | 5 | Daughter | — | Kentucky |
| 12 | Cora E. Johnson | 4 | Daughter | — | Kentucky |
| 13 | Joseph A. Johnson | 2 | Son | — | Kentucky |
| 14 | Bill Whitfill | 52 | Head | Operator | Kentucky |
| 15 | Florence Whitfill | 52 | Wife | — | Kentucky |
| 16 | Pauline Whitfill | 14 | Daughter | — | Kentucky |
| 17 | William Whitfill | 7 | Son | — | Kentucky |
| 18 | Leo Clark | 85 | Father-in-law | — | Kentucky |
| 19 | Henry D. Lucas | 66 | Head | Operator | Kentucky |
| 20 | William D. Langley | 42 | Head | Operator | Kentucky |
| 21 | Bessie Langley | 41 | Wife | — | Kentucky |
| 22 | Helma Langley | 18 | Daughter | — | Kentucky |
| 23 | Mildred Langley | 15 | Daughter | — | Kentucky |
| 24 | David Langley | 13 | Son | — | Kentucky |
| 25 | Anna Langley | 10 | Daughter | — | Kentucky |
| 26 | James Langley | 5 | Son | — | Kentucky |
| 27 | Joe E. Conder | 55 | Head | Operator | Kentucky |
| 28 | Joseph P. Clark THIS PERSON | 28 | Head | Laborer | Kentucky |
| 29 | Rosa Clark | 25 | Wife | — | Kentucky |
| 30 | Joseph N. Clark | 3 | Son | — | Kentucky |
| 31 | Samuel Clark | 2 | Son | — | Kentucky |
| 32 | James J. Jr. Langley | 40 | Head | Operator | Kentucky |
| 33 | Phillip J. Langley | 23 | Head | Operator | Kentucky |
| 34 | Gilbert Miller | 43 | Head | Operator | Kentucky |
| 35 | Mary Miller | 37 | Wife | — | Kentucky |
| 36 | Henry Miller | 15 | Son | — | Kentucky |
| 37 | Thomas Miller | 14 | Son | — | Kentucky |
| 38 | Mildred Miller | 11 | Daughter | — | Kentucky |
| 39 | Mary L. Miller | 9 | Daughter | — | Kentucky |
| 40 | Marcella Miller | 82 | Mother | — | Kentucky |
Pedigree Summary
Joseph
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)