HC
Helen Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Livingston-County, Illinois
Our Model Tree links this Helen Clark across the 1920, 1930 and 1940 US Censuses in Livingston-County, Illinois (XGBoost, ~Confirmed), with identified parents Dalbert & Gilbert — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Livingston-County, Illinois |
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Town |
| Additional Details | |
| Occupation | Ready to Ware |
| Industry | Shop |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Ready To Ware |
| Township / Ward | Pontiac City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Helen Clark | Daughter | — | 23 | ~1917 |
| Dalbert Clark | Head | — | 65 | ~1875 |
| Ray Clark | Son | — | 18 | ~1922 |
| Minnie Clark | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Livingston, Illinois
Daughter, age 2
Livingston, Illinois · implied b. ~1918 — 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 | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Livingston, Illinois
Daughter, age 12
Livingston, Illinois · implied b. ~1918 — 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 | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Livingston-County, Illinois
Daughter, age 23
Livingston-County, Illinois · implied b. ~1917 — 4 household members
| Surname | Clark |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Town |
| Occupation | Ready to Ware |
| Industry | Shop |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 520 |
| Highest Grade | Hs 4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Dalbert Clark (~0.92 confidence) and father Gilbert Clark (~0.92 confidence) and father Gilbert Clark (~0.92 confidence) and mother Minnie Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dalbert Clark
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Gilbert Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Gilbert Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Minnie Clark
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Clark
Daughter · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Ray 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 — Livingston-County, Illinois
Open full size
1940 US Federal Census — Livingston-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00837-00850)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodore Hinds | 32 | Nephew | Lawyer | Illinois |
| 2 | Stanley Durm | 32 | Head | Shoe Maker | Illinois |
| 3 | Ann Durm | 26 | Wife | Clerk | Illinois |
| 4 | J. W. Smith | 70 | Head | — | Virginia |
| 5 | Ernest Mossholder | 47 | Head | Creamery | Illinois |
| 6 | Eva Mossholder | 44 | Wife | — | Illinois |
| 7 | Milton Mossholder | 23 | Son | Secretary | Illinois |
| 8 | Harold Gribley | 22 | Lodger | Linotype | Illinois |
| 9 | W. W. Louderback | 76 | Head | Polish | Illinois |
| 10 | Ella Louderback | 59 | Wife | — | Illinois |
| 11 | Ruth Louderback | 26 | Daughter | Secretary | Illinois |
| 12 | Charles Hicks | 39 | Head | Shoe Worker | Iowa |
| 13 | Mary Hicks | 39 | Wife | — | Illinois |
| 14 | Doris Hicks | 19 | Daughter | Clerk | Iowa |
| 15 | Donald Hicks | 17 | Son | — | Illinois |
| 16 | Charles Jr. Hicks | 15 | Son | — | Illinois |
| 17 | Marilyn Hicks | 12 | Daughter | — | Illinois |
| 18 | Bernadine Hicks | 10 | Daughter | — | Illinois |
| 19 | Roland Hicks | 3 | Son | — | Illinois |
| 20 | Frank Honkel | 36 | Head | Book Binder | Wisconsin |
| 21 | Anna Honkel | 29 | Wife | — | Wisconsin |
| 22 | Frank Jr. Honkel | 5 | Son | — | Wisconsin |
| 23 | Clarence Holbridge | 36 | Head | Garage | Illinois |
| 24 | Marie Holbridge | 34 | Wife | — | Alabama |
| 25 | Marie Sue Holbridge | 12 | Daughter | — | Illinois |
| 26 | Betty Holbridge | 11 | Daughter | — | Illinois |
| 27 | Virginia Holbridge | 8 | Daughter | — | Illinois |
| 28 | Clarence Jr. Holbridge | 6 | Son | — | Illinois |
| 29 | Raymond Christie | 29 | Head | Mechanic | Illinois |
| 30 | Lulu Christie | 25 | Wife | — | Illinois |
| 31 | Karen Christie | 6 | Daughter | — | Illinois |
| 32 | George Gore | 45 | Head | Manager | Illinois |
| 33 | Gladys Gore | 37 | Wife | — | Illinois |
| 34 | Arthur Gore | 12 | Son | — | Illinois |
| 35 | Dorothy Gore | 8 | Daughter | — | Illinois |
| 36 | Dalbert Clark | 65 | Head | Street Work | Illinois |
| 37 | Minnie Clark | 59 | Wife | — | Illinois |
| 38 | Helen Clark THIS PERSON | 23 | Daughter | Ready To Ware | Illinois |
| 39 | Ray Clark | 18 | Son | National Tea | Illinois |
| 40 | Jim Jobst | 47 | Head | Supt Street Work | Illinois |
Related Census Records
Pedigree Summary
Helen + 1 sibling
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)