HC
Henry Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clermont-County, Ohio
Our Model Tree links this Henry Clark across the 1920, 1930 and 1940 US Censuses in Clermont-County, Ohio (XGBoost, ~Confirmed), with identified parents Joseph & Lucinda — first a son (b.~1911), then head of a 5-person household.
Age 29
b. ~1911
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clermont-County, Ohio |
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Clermont |
| Additional Details | |
| Occupation | Laborer |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 500 |
| Highest Grade | 7 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Withamsville |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Mehne | Daughter | — | 14 | ~1926 |
| Joseph Clark | Head | — | 21 | ~1919 |
| John Clark | Other | — | 64 | ~1876 |
| Henry Clark | Son | — | 29 | ~1911 |
| Lucindia Clark | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Hamilton, Ohio
Son, age 8
Hamilton, Ohio · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 18
Hamilton, Ohio · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | General |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clermont-County, Ohio
Son, age 29
Clermont-County, Ohio · implied b. ~1911 — 5 household members
| Surname | Clark |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Clermont |
| Occupation | Laborer |
| Industry | Building Construction |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 500 |
| Highest Grade | 7 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Henry Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Clark (~0.92 confidence) and mother Lucinda Clark (~0.92 confidence) and mother Lucindia Clark (~0.50 confidence) and father Joseph Clark (~0.50 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.71
Father
Joseph Clark
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Lucinda Clark
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Lucindia Clark
b. ~1917
Source mother
● Household
· direct · ~0.5
Father
Joseph Clark
b. ~1919
Source father
● Household
· direct · ~0.5
This person
Anchor record
Henry Clark
Son · 1940 · age 29 · b. ~1911 · Ohio
★ You are viewing this record
Sibling
Elizabeth Mehne
Sibling · 1940 · age 14
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 — Clermont-County, Ohio
Open full size
1940 US Federal Census — Clermont-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03041-00757)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose Marie Brown | 7 | Daughter | — | Ohio |
| 42 | Hannah L Brown | 5 | Daughter | — | Ohio |
| 43 | Carl Hughes | 57 | Head | Attendant | Indiana |
| 44 | Fannie E Hughes | 52 | Wife | — | Indiana |
| 45 | William H Sargent | 27 | Head | — | Illinois |
| 46 | Elizabeth Sargent | 22 | Wife | — | Ohio |
| 47 | Son Miller | 30 | Son | Machinist | Ohio |
| 48 | Clarence Mullenix | 32 | Head | Janitor | Ohio |
| 49 | Bessie P Mullenix | 32 | Wife | — | Ohio |
| 50 | Charles Mullenix | 2 | Son | — | Ohio |
| 51 | Sidnia Mullenix | 1 | Daughter | — | Ohio |
| 52 | William Enlow | 16 | Brother | New Worker | Ohio |
| 53 | Henry H Knotts | 62 | Head | Clerk | West Virginia |
| 54 | Esta D Knotts | 60 | Wife | — | Ohio |
| 55 | Bruce Bennett | 63 | Head | Farmer | Ohio |
| 56 | Hazel O Bennett | 53 | Wife | — | Ohio |
| 57 | Eugene Bennett | 23 | Son | — | Ohio |
| 58 | Eddie Lee Farlow | 62 | Head | Farmer | Indiana |
| 59 | Nellie Farlow | 60 | Wife | — | Ohio |
| 60 | William Mcneil | 44 | Head | Laborer | Kentucky |
| 61 | John W Strumple | 74 | Head | Farmer | Ohio |
| 62 | Amanda D Mclee | 69 | Sister | — | Ohio |
| 63 | Joseph Clark | 21 | Head | New Worker | Kentucky |
| 64 | Lucindia D Clark | 23 | Wife | — | Kentucky |
| 65 | Henry Clark THIS PERSON | 29 | Son | Laborer | Ohio |
| 66 | Elizabeth Mehne | 14 | Daughter | — | Ohio |
| 67 | John Clark | 64 | Brother | Hod Carrier | Kentucky |
| 68 | Martin Shannon | 63 | Head | Caretaker | Ohio |
| 69 | Marian Shannon | 41 | Wife | — | Michigan |
| 70 | Bromley Shannon | 74 | Brother | Farmer | Ohio |
| 71 | Mack Williams | 33 | Head | Conductor | Tennessee |
| 72 | Mabel Williams | 39 | Wife | — | Virginia |
| 73 | Raymond Clifford Williams | 18 | Son | New Worker | Ohio |
| 74 | Helen Williams | 16 | Daughter | — | Ohio |
| 75 | Ira M Bybolt | 68 | Head | — | Ohio |
| 76 | Wilmer Dudley | 35 | Head | Stockkeeper | Ohio |
| 77 | Jesse Dudley | 23 | Wife | Stockkeeper | Ohio |
| 78 | Delores Dudley | 15 | Daughter | — | Ohio |
| 79 | Wanda Jean Dudley | 11 | Daughter | — | Ohio |
| 80 | John Wilson | 43 | Head | Estimator | Ohio |
Related Census Records
Pedigree Summary
Henry + 1 sibling
Gen 1 · 4 parents
~0.71
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)