HW
Helen Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pittsburg-County, Oklahoma
Our Model Tree links this Helen Williams across the 1920, 1930 and 1940 US Censuses in Pittsburg-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Elizabeth & Elizabeth — first a daughter (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pittsburg-County, Oklahoma |
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | McAlester City |
| 1935 Residence (County) | Pittsburg |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 900 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Teacher |
| Township / Ward | Mcalester City |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Williams | Daughter | — | 35 | ~1905 |
| John Williams | Head | — | 72 | ~1868 |
| Elizabeth Williams | Spouse | — | 73 | ~1867 |
Census Appearances
1920
Pittsburg, Oklahoma
Daughter, age 14
Pittsburg, Oklahoma · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Pittsburg, Oklahoma
Daughter, age 24
Pittsburg, Oklahoma · implied b. ~1906 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Scotland |
| Occupation | Teacher |
| Industry | Public Schools |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Pittsburg-County, Oklahoma
Daughter, age 35
Pittsburg-County, Oklahoma · implied b. ~1905 — 3 household members
| Surname | Williams |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | McAlester City |
| 1935 Residence (County) | Pittsburg |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 900 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Elizabeth Williams (~0.92 confidence) and mother Elizabeth Williams (~0.92 confidence) and father John Williams (~0.92 confidence) and father James Williams (~0.92 confidence) and father Kleber Lefevre (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Elizabeth Williams
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Williams
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
John Williams
b. ~1868
Source father
● Household
· direct · ~0.92
Father
James Williams
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Kleber Lefevre
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Williams
Daughter · 1940 · age 35 · b. ~1905 · Oklahoma
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pittsburg-County, Oklahoma
Open full size
1940 US Federal Census — Pittsburg-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03324-00630)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lonnie Paul Parker | 18 | Son | New Worker | Oklahoma |
| 2 | Thomas R. Parker | 17 | Son | — | Oklahoma |
| 3 | Louisa Parker | 15 | Daughter | — | Kansas |
| 4 | Mary Lou Parker | 13 | Daughter | — | Oklahoma |
| 5 | John Robert Parker | 11 | Son | — | Oklahoma |
| 6 | Gene Edward Parker | 7 | Son | — | Oklahoma |
| 7 | Ronny Parker | 2 | Son | — | Oklahoma |
| 8 | Donny Parker | 2 | Son | — | Oklahoma |
| 9 | Annie Marie Parker | 1 | Daughter | — | Oklahoma |
| 10 | Sarah Parker | 74 | Head | — | Missouri |
| 11 | Mary Ledbetter | 60 | Head | New Worker | Tennessee |
| 12 | Edgar Earle Ledbetter | 37 | Son | — | Oklahoma |
| 13 | Frank Carley | 48 | Head | Embalmer | Oklahoma |
| 14 | Effie Carley | 46 | Wife | — | Georgia |
| 15 | Frank Edward Carley | 18 | Son | — | Oklahoma |
| 16 | Owen Robert | 45 | Head | Plumber | Indiana |
| 17 | Elizabeth Robert | 43 | Wife | — | Pennsylvania |
| 18 | Louis Robert | 20 | Son | News Boy | Oklahoma |
| 19 | Howard Robert | 19 | Son | Delivery Paper | Oklahoma |
| 20 | Raymond Robert | 17 | Son | — | Oklahoma |
| 21 | Jean Robert | 15 | Daughter | — | Oklahoma |
| 22 | Louis F. Wincke | 74 | Head | Water Commissioner | Indiana |
| 23 | Minnie A. Wincke | 73 | Wife | — | Indiana |
| 24 | Franklin A. Sadler | 58 | Head | Care Taker | Oklahoma |
| 25 | Ethel Mae Sadler | 48 | Wife | — | Oklahoma |
| 26 | Samuel W. Mitchell | 58 | Head | Secretary | Oklahoma |
| 27 | Sarah E. Mitchell | 51 | Wife | — | Illinois |
| 28 | John Samuel Mitchell | 28 | Son | Salesman | Oklahoma |
| 29 | Ed. D. Patterson | 46 | Head | Bus Driver | Oklahoma |
| 30 | Jolyne Patterson | 44 | Wife | — | Kentucky |
| 31 | John D. Williams | 72 | Head | — | Tennessee |
| 32 | Elizabeth Williams | 73 | Wife | — | Scotland |
| 33 | Helen Williams THIS PERSON | 35 | Daughter | Teacher | Oklahoma |
| 34 | Merrel Thompson | 65 | Head | — | Kansas |
| 35 | Eldora Thompson | 63 | Wife | — | Indiana |
| 36 | Mary Lee Thompson | 3 | Daughter | — | Oklahoma |
| 37 | Stephen C. Cooper | 72 | Head | — | Oklahoma |
| 38 | Ada Cooper | 64 | Wife | — | Oklahoma |
| 39 | Corinne Cooper | 30 | Daughter | — | Oklahoma |
| 40 | John E. Long | 59 | Head | Proprietor | Tennessee |
Pedigree Summary
Helen
Gen 1 · 5 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)