HC
Harry Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pratt-County, Kansas
Our Model Tree links this Harry Clark across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Pratt-County, Kansas (XGBoost, ~Confirmed), with identified parents Samuel & Elmer — first a son (b.~1889), then head of a 2-person household.
Age 51
b. ~1889
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pratt-County, Kansas |
| Surname | Clark |
| Given Name | Harry A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Pratt City |
| 1935 Residence (County) | Pratt |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 49 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Pratt City |
| Est. Birth Year | ~1889 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Samuel Clark | Head | — | 55 | ~1885 |
| Harry Clark | Son | — | 51 | ~1889 |
Census Appearances
1900
Pratt, Kansas
Son, age 12
Pratt, Kansas · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry O |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Birth Month | Sep |
| Birth Year | 1888 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1910
Pratt, Kansas
Son, age 21
Pratt, Kansas · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Engineer |
| Industry | Water Works |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Pratt, Kansas
Son, age 31
Pratt, Kansas · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Pratt, Kansas
Son, age 41
Pratt, Kansas · implied b. ~1889 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | Wheat farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Pratt-County, Kansas
Son, age 51
Pratt-County, Kansas · implied b. ~1889 — 2 household members
| Surname | Clark |
| Given Name | Harry A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Pratt City |
| 1935 Residence (County) | Pratt |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 49 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Harry Clark across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Samuel Clark (~0.92 confidence) and father Elmer Clark (~0.92 confidence) and mother Lizzie Clark (~0.92 confidence) and mother E Clark (~0.92 confidence) and father Samuel Clark (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Samuel Clark
b. ~1855
Source father
● Household
· direct · ~0.92
Father
Elmer Clark
b. ~1857
Source father
● Household
· direct · ~0.92
Mother
Lizzie Clark
b. ~1857
Source mother
● Household
· direct · ~0.92
Mother
E Clark
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Samuel Clark
b. ~1885
Source father
● Household
· direct · ~0.6
This person
Anchor record
Harry Clark
Son · 1940 · age 51 · b. ~1889 · Kansas
★ 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 — Pratt-County, Kansas
Open full size
1940 US Federal Census — Pratt-County, Kansas
Page Contents
11 people indexed on this census page (nara:1940:m-t0627-01252-00767)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marva Lunsford | 9 | Daughter | — | Kansas |
| 42 | Samuel D. Clark | 55 | Head | — | Illinois |
| 43 | Harry A. Clark THIS PERSON | 51 | Son | Farmer | Kansas |
| 44 | Walter Davis | 48 | Head | Inspector | Arkansas |
| 45 | Effie G. Davis | 46 | Wife | — | Arkansas |
| 46 | Velma Davis | 26 | Daughter | Clerk | Arkansas |
| 47 | Clyde Davis | 22 | Son | Clerk | Oklahoma |
| 48 | Helen Davis | 18 | Daughter | — | Oklahoma |
| 49 | Jerry Davis | 13 | Son | — | Kansas |
| 50 | Earl Freeman | 60 | Head | Proprietor | Indiana |
| 51 | Bessie Freeman | 54 | Wife | — | Iowa |
Related Census Records
Pedigree Summary
Harry
Gen 1 · 5 parents
~0.86
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)