HC
Helen Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Virginia
Our Model Tree links this Helen Clark across the 1920, 1930 and 1940 US Censuses in Frederick-County, Virginia (XGBoost, ~Confirmed), with identified parents Walter & James — first a daughter (b.~1911), then head of a 9-person household.
Age 29
b. ~1911
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Virginia |
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Some House |
| Additional Details | |
| Occupation | Laborer |
| Industry | Knitting Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 620 |
| Highest Grade | No 7 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Laborer |
| Township / Ward | Shawnee District Mag |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Ruth Clark | Daughter | — | 26 | ~1914 |
| Helen Clark | Daughter | — | 29 | ~1911 |
| Walter Clark | Head | — | 58 | ~1882 |
| Emma Clark | Other | — | 26 | ~1914 |
| James Clark | Other | — | 1 | ~1939 |
| Howard Clark | Son | — | 22 | ~1918 |
| Paul Clark | Son | — | 17 | ~1923 |
| Columel Clark | Son | — | 25 | ~1915 |
| Ada Clark | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Frederick, Virginia
Daughter, age 11
Frederick, Virginia · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Frederick, Virginia
Daughter, age 20
Frederick, Virginia · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Frederick-County, Virginia
Daughter, age 29
Frederick-County, Virginia · implied b. ~1911 — 9 household members
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Some House |
| Occupation | Laborer |
| Industry | Knitting Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 620 |
| Highest Grade | No 7 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Walter Clark (~0.92 confidence) and father James Clark (~0.92 confidence) and mother Ida Clark (~0.92 confidence) and father Lee Clark (~0.92 confidence) and mother Ada Clark (~0.92 confidence) and mother Lidella Clark (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walter Clark
b. ~1882
Source father
● Household
· direct · ~0.92
Father
James Clark
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Ida Clark
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Lee Clark
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ada Clark
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Lidella Clark
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Clark
Daughter · 1940 · age 29 · b. ~1911 · Virginia
★ You are viewing this record
Sibling
Howard Clark
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Columel Clark
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Clark
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Clark
Sibling · 1940 · age 17
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 — Frederick-County, Virginia
Open full size
1940 US Federal Census — Frederick-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04264-00249)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Bell | 4 | son | — | Virginia |
| 2 | Anthony Bell | 2 | son | — | Virginia |
| 3 | Ronald Bell | 1 | son | — | Virginia |
| 4 | Arthur Cooper | 48 | Head | Farming + Trucking | Virginia |
| 5 | Sophie Cooper | 24 | Wife | — | Virginia |
| 6 | Ray Cooper | 1 | son | — | Virginia |
| 7 | Walter Clark | 58 | Head | Brick Layer | Virginia |
| 8 | Ada Clark | 54 | Wife | — | Virginia |
| 9 | Helen Clark THIS PERSON | 29 | Daughter | Laborer | Virginia |
| 10 | Ruth Clark | 26 | Daughter | Laborer | Virginia |
| 11 | Howard Clark | 22 | son | Laborer | Virginia |
| 12 | Paul Clark | 17 | son | — | Virginia |
| 13 | Columel Clark | 25 | son | Laborer | Virginia |
| 14 | Emma Clark | 26 | Daughter-in-law | — | Virginia |
| 15 | James Clark | 1 | Grandson | — | Virginia |
| 16 | Charles Say | 42 | Head | Manager | Virginia |
| 17 | Leota Say | 37 | Wife | — | Virginia |
| 18 | Clark Say | 16 | son | — | Virginia |
| 19 | Charles Say | 15 | son | — | Virginia |
| 20 | Raymond Say | 9 | son | — | Virginia |
| 21 | Russell Say | 8 | son | — | Virginia |
| 22 | Betty Say | 6 | Daughter | — | Virginia |
| 23 | John Trogelfall | 39 | Head | Farmer | Germany |
| 24 | Elizabeth Trogelfall | 20 | Wife | — | Ohio |
| 25 | John Trogelfall | 5 | son | — | Virginia |
| 26 | Elmer Trogelfall | 37 | brother | Farmer | Germany |
| 27 | Wilbur Trogelfall | 27 | brother | Painter | Germany |
| 28 | Lisetta Trogelfall | 70 | Mother | — | Germany |
| 29 | John Trophy | 27 | Head | Laborer | Virginia |
| 30 | Cyladea Trophy | 14 | Wife | — | Maryland |
| 31 | Maud Trophy | 47 | Mother | — | Virginia |
| 32 | Jessie Malone | 45 | Head | Manager | Virginia |
| 33 | Della Malone | 55 | Wife | — | Virginia |
| 34 | Lewis Patton | 71 | Head | — | Pennsylvania |
| 35 | Emma Patton | 70 | Wife | — | Virginia |
| 36 | Walter Mitchell | 40 | Head | — | Maryland |
| 37 | Virginia Mitchell | 42 | Wife | — | West Virginia |
| 38 | Walter Jr. Mitchell | 11 | son | — | Virginia |
| 39 | Levin Wright | 40 | Head | Service Station | Virginia |
| 40 | Audrey Wright | 33 | Wife | — | Virginia |
Pedigree Summary
Helen + 4 siblings
Gen 1 · 6 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)