HC
Helen Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lancaster-County, Nebraska
Our Model Tree links this Helen Clark across the 1920, 1930 and 1940 US Censuses in Lancaster-County, Nebraska (XGBoost, ~Confirmed), with identified parents Lawrence & Lucy — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lancaster-County, Nebraska |
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Lincoln City |
| 1935 Residence (County) | Lancaster |
| Additional Details | |
| Occupation | Laboratory Assistant |
| Industry | Wholesale Drug Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 224 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Laboratory Assistant |
| Township / Ward | Lincoln City |
| Est. Birth Year | ~1919 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Ruth Clark | Daughter | — | 15 | ~1925 |
| Helen Clark | Daughter | — | 21 | ~1919 |
| Dorothy Clark | Daughter | — | 14 | ~1926 |
| Lucy Clark | Head | — | 60 | ~1880 |
Census Appearances
1920
Lancaster, Nebraska
Daughter, age 1
Lancaster, Nebraska · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Lancaster, Nebraska
Daughter, age 11
Lancaster, Nebraska · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Nebraska |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Lancaster-County, Nebraska
Daughter, age 21
Lancaster-County, Nebraska · implied b. ~1919 — 4 household members
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Lincoln City |
| 1935 Residence (County) | Lancaster |
| Occupation | Laboratory Assistant |
| Industry | Wholesale Drug Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 224 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Lawrence Clark (~0.92 confidence) and mother Lucy Clark (~0.92 confidence) and mother Lucy Clark (~0.92 confidence) and mother Lucy Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lawrence Clark
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Lucy Clark
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lucy Clark
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lucy Clark
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Clark
Daughter · 1940 · age 21 · b. ~1919 · Nebraska
★ You are viewing this record
Sibling
Ruth Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Clark
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 — Lancaster-County, Nebraska
Open full size
1940 US Federal Census — Lancaster-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02255-00155)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth J Good | 24 | Son | No | Same Place |
| 2 | William Carlson | 65 | Head | No | Sweden |
| 3 | Allie H Carlson | 43 | Wife | No | Nebraska |
| 4 | George W Jr Dunn | 32 | Head | Accountant | Nebraska |
| 5 | Jessie W Dunn | 29 | Wife | No | Illinois |
| 6 | Harold R Wilson | 35 | Head | Life Insurance Salesman | Nebraska |
| 7 | Doris A Wilson | 31 | Wife | Billing Clerk | Nebraska |
| 8 | Jacqueline Wilson | 6 | Daughter | — | Nebraska |
| 9 | Eva Gellatly | 62 | Mother-in-law | No | Nebraska |
| 10 | H John | 68 | Father-in-law | Grocery Store Manager Owner | Ohio |
| 11 | Bert Huddleston | 57 | Head | Plant Foreman | Nebraska |
| 12 | Margaret Huddleston | 51 | Wife | No | Kansas |
| 13 | William Huddleston | 16 | Son | No | Nebraska |
| 14 | Harold Shreeve | 24 | Lodger | Route Salesman | Nebraska |
| 15 | Otto H Brinkman | 48 | Head | Printing | Nebraska |
| 16 | Mary E Brinkman | 48 | Wife | No | Nebraska |
| 17 | Betty Brinkman | 16 | Daughter | No | Nebraska |
| 18 | Donald Brinkman | 11 | Son | — | Nebraska |
| 19 | Joseph E Tucker | 44 | Head | Sales Manager | Montana |
| 20 | Fay E Tucker | 48 | Wife | No | Louisiana |
| 21 | Fred Jr Eastisday | 29 | Son-in-law | Property Manager | Nebraska |
| 22 | Jean Fay Eastisday | 25 | Daughter | No | Nebraska |
| 23 | W K Place | 57 | Head | Book Binder | Pennsylvania |
| 24 | Charlotte Place | 51 | Wife | Manager | Nebraska |
| 25 | Mary E Samuel | 80 | Mother-in-law | No | Wisconsin |
| 26 | Henry H Herd | 52 | Head | Real Estate Salesman | Nebraska |
| 27 | Josephine Herd | 52 | Wife | No | Nebraska |
| 28 | Thomas John Herd | 16 | Son | No | Iowa |
| 29 | Luther E Mumford | 65 | Head | Salesman | Nebraska |
| 30 | Grace C Mumford | 61 | Wife | No | New Hampshire |
| 31 | Lucy C Clark | 60 | Head | No | Nebraska |
| 32 | Helen Clark THIS PERSON | 21 | Daughter | Laboratory Assistant | Nebraska |
| 33 | Dorothy Clark | 14 | Daughter | Typing | Nebraska |
| 34 | Ruth Clark | 15 | Daughter | No | Nebraska |
| 35 | David Carter | 52 | Head | Fireman | Nebraska |
| 36 | Jessie Carter | 44 | Wife | No | Nebraska |
| 37 | Viola Carter | 14 | Daughter | No | Nebraska |
| 38 | Leola Carter | 17 | Daughter | No | Nebraska |
| 39 | Walton E Harris | 44 | Head | President | Michigan |
| 40 | Elizabeth Harris | 38 | Wife | No | Nebraska |
Related Census Records
Pedigree Summary
Helen + 2 siblings
Gen 1 · 4 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)