HW
Harold Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Logan-County, Oklahoma
Our Model Tree links this Harold Williams across the 1920, 1930 and 1940 US Censuses in Logan-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Cora & Perry — first a head (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Male
Head
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Logan-County, Oklahoma |
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Guthrie City |
| 1935 Residence (County) | Logan |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Ford Plant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 332 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Mechanic |
| Township / Ward | Guthrie City |
| Est. Birth Year | ~1916 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Nyloma Williams | Daughter | — | 3 | ~1937 |
| Harold Williams | Head | — | 24 | ~1916 |
| Helen Williams | Spouse | — | 22 | ~1918 |
Census Appearances
1920
Logan, Oklahoma
Son, age 4
Logan, Oklahoma · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kansas |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Logan, Oklahoma
Son, age 14
Logan, Oklahoma · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Logan-County, Oklahoma
Head, age 24
Logan-County, Oklahoma · implied b. ~1916 — 3 household members
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Guthrie City |
| 1935 Residence (County) | Logan |
| Occupation | Mechanic |
| Industry | Ford Plant |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 332 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Harold Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Cora Williams (~0.92 confidence) and father Perry Williams (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Cora Williams
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Perry Williams
b. ~1889
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Williams
Head · 1940 · age 24 · b. ~1916 · 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 — Logan-County, Oklahoma
Open full size
1940 US Federal Census — Logan-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03307-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hattie Mahnke | 40 | Head | — | Texas |
| 2 | Mattie S Polk | 64 | Head | — | N. Carolina |
| 3 | William Blackwell | 7 | Nephew | — | Oklahoma |
| 4 | Henry A Edwards | 46 | Head | Janitor | Oklahoma |
| 5 | Nora D Edwards | 46 | Wife | — | Oklahoma |
| 6 | Warren Marshall Edwards | 17 | Son | — | Oklahoma |
| 7 | Russell Edwards | 14 | Son | — | Oklahoma |
| 8 | George W Motley | 77 | Head | — | Tennessee |
| 9 | John R Watkins | 74 | Lodger | — | Texas |
| 10 | Charles Wesley Keys | 47 | Head | Plumber | Tennessee |
| 11 | Marjorie Virginia Keys | 46 | Wife | — | Oklahoma |
| 12 | Charles Warren Keys | 15 | Son | — | Oklahoma |
| 13 | Barbara Jean Keys | 14 | Daughter | — | Oklahoma |
| 14 | Marjorie Ellen Keys | 10 | Daughter | — | Oklahoma |
| 15 | Laura Emma Smith | 74 | Mother-in-law | — | Maryland |
| 16 | Ralph T Netter | 36 | Head | Sales Mgr | Kansas |
| 17 | Opal D Netter | 35 | Wife | — | Kansas |
| 18 | Edward Marshall | 15 | Son | — | Oklahoma |
| 19 | Velma Louise Marshall | 8 | Daughter | — | Oklahoma |
| 20 | Mattie Marshall | 66 | Mother | — | Missouri |
| 21 | Claudie S Cottrell | 75 | Head | — | Kentucky |
| 22 | Grover Loyd | 20 | Head | Cab Driver | Oklahoma |
| 23 | Geneva Loyd | 24 | Wife | Waitress | Texas |
| 24 | Cecil Lewis Parham | 58 | Head | Switchman | Kansas |
| 25 | Stella E Parham | 58 | Wife | State Reporter | Kansas |
| 26 | Emma S Olemith | 77 | Head | — | Ohio |
| 27 | Mary Olemith | 43 | Daughter | — | Oklahoma |
| 28 | Tim D Byrum | 72 | Head | — | Iowa |
| 29 | John Thomas Jones | 34 | Nephew | Attendant | Oklahoma |
| 30 | Harold Williams THIS PERSON | 24 | Head | Mechanic | Tennessee |
| 31 | Helen Marie Williams | 22 | Wife | — | Oklahoma |
| 32 | Nyloma Mae Williams | 3 | Daughter | — | Oklahoma |
| 33 | John S Clark | 84 | Head | — | Ohio |
| 34 | Artie M Clark | 77 | Wife | — | Iowa |
| 35 | William P Downing | 33 | Head | Owner | Oklahoma |
| 36 | Ferral R Downing | 32 | Wife | Bookkeeper | Oklahoma |
| 37 | Billie Frank Downing | 14 | Son | — | Oklahoma |
| 38 | Marilyn Downing | 7 | Daughter | — | Oklahoma |
| 39 | Elizabeth Lee | 68 | Mother-in-law | — | Tennessee |
| 40 | August Goss | 55 | Head | Mechanic | Iowa |
Pedigree Summary
Harold
Gen 1 · 2 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)