HC
Helen Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scioto-County, Ohio
Our Model Tree links this Helen Clark across the 1920, 1930 and 1940 US Censuses in Scioto-County, Ohio (XGBoost, ~Confirmed), with identified parents Ernest & Elizabeth — first a daughter (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scioto-County, Ohio |
| Surname | Clark |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Scioto |
| Additional Details | |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Income (1939) | 1349 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Teacher |
| Township / Ward | Portsmouth |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Clark | Daughter | — | 25 | ~1915 |
| Ernest Clark | Head | — | 50 | ~1890 |
| Allen Clark | Son | — | 17 | ~1923 |
| William Clark | Son | — | 22 | ~1918 |
| George Clark | Son | — | 18 | ~1922 |
| J Clark | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Scioto, Ohio
Daughter, age 5
Scioto, Ohio · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Scioto, Ohio
Daughter, age 15
Scioto, Ohio · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Scioto-County, Ohio
Daughter, age 25
Scioto-County, Ohio · implied b. ~1915 — 6 household members
| Surname | Clark |
| Given Name | Helen E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Scioto |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Income (1939) | 1349 |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| 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 Helen Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ernest Clark (~0.92 confidence) and mother Elizabeth Clark (~0.92 confidence) and mother J Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ernest Clark
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Clark
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
J Clark
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Clark
Daughter · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Allen Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Clark
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Clark
Sibling · 1940 · age 18
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 — Scioto-County, Ohio
Open full size
1940 US Federal Census — Scioto-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03143-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lottie Mcmillan | 66 | Wife | — | Michigan |
| 42 | Ogle E. Burcham | 45 | Head | Mechanic | Ohio |
| 43 | Vera D. Burcham | 47 | Wife | Bookkeeper | Ohio |
| 44 | George H. Wilkerson | 62 | Head | Proprietor | New York |
| 45 | Jennie L. Wilkerson | 51 | Wife | — | Ohio |
| 46 | Hubert B. Ruffe | 36 | Head | Car Inspector | Kentucky |
| 47 | Virginia R. Ruffe | 32 | Wife | Stenographer | West Virginia |
| 48 | Hubert B. Ruffe | 6 | Son | — | Ohio |
| 49 | George W. Bryan | 44 | Head | Assistant Supt. | Kentucky |
| 50 | Nancy J. Bryan | 44 | Wife | — | Virginia |
| 51 | Phillip L. Stone | 18 | Stepson | — | Kentucky |
| 52 | Robert F. Stone | 13 | Stepson | — | Kentucky |
| 53 | Lowell G. Buckert | 43 | Head | Proprietor | Ohio |
| 54 | Helen B. Buckert | 40 | Wife | — | New York |
| 55 | Lowell G. Buckert | 19 | Son | — | Ohio |
| 56 | Rose G. Smith | 64 | Mother-in-law | — | Germany |
| 57 | Isaac J. Harding | 44 | Head | Superintendent | Pennsylvania |
| 58 | Eva M. Harding | 47 | Wife | — | Pennsylvania |
| 59 | James T. Phillips | 39 | Head | Office Clerk | Ohio |
| 60 | Naomi E. Phillips | 37 | Wife | — | West Virginia |
| 61 | Marci A. Phillips | 15 | Daughter | — | Ohio |
| 62 | Charles W. Phillips | 15 | Son | — | Ohio |
| 63 | Foster A. Phillips | 13 | Son | — | Ohio |
| 64 | Maude E. Mcmanus | 53 | Sister | — | Ohio |
| 65 | Robert V. Brown | 8 | Nephew | — | Ohio |
| 66 | Ernest S. Clark | 50 | Head | Supply Room Foreman | Kentucky |
| 67 | J. Elizabeth Clark | 49 | Wife | — | Kentucky |
| 68 | Helen E. Clark THIS PERSON | 25 | Daughter | Teacher | Ohio |
| 69 | William E. Clark | 22 | Son | Model | Ohio |
| 70 | George E. Clark | 18 | Son | Doorman | Ohio |
| 71 | Allen E. Clark | 17 | Son | — | Ohio |
| 72 | Aquilla L. Joseph | 47 | Head | Custodian | West Virginia |
| 73 | Eva Joseph | 47 | Wife | — | West Virginia |
| 74 | Howard J. Joseph | 20 | Son | Usher | Ohio |
| 75 | William E. Morris | 45 | Head | Supervisor | Ohio |
| 76 | Alberta R. Morris | 42 | Wife | — | Ohio |
| 77 | Gloria Morris | 14 | Daughter | — | Ohio |
| 78 | Margaret J. Henry | 49 | Head | Bookkeeper | Ohio |
| 79 | Earl E. Henry | 55 | Brother | Machinist | Ohio |
| 80 | Aldene J. Henry | 17 | Niece | — | Ohio |
Related Census Records
Pedigree Summary
Helen + 3 siblings
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)