HW
Harold Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Stephenson-County, Illinois
Our Model Tree links this Harold Williams across the 1920, 1930 and 1940 US Censuses in Stephenson-County, Illinois (XGBoost, ~Confirmed), with identified parents Elizabeth & Elizabeth — first a son (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stephenson-County, Illinois |
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport |
| 1935 Residence (County) | Stephenson |
| Additional Details | |
| Occupation | Attendant |
| Industry | Filling station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Attendant |
| Township / Ward | Freeport |
| Est. Birth Year | ~1909 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Leona Williams | Daughter | — | 33 | ~1907 |
| Elizabeth Williams | Head | — | 62 | ~1878 |
| Harold Williams | Son | — | 31 | ~1909 |
| Kenneth Williams | Son | — | 28 | ~1912 |
Census Appearances
1920
Stephenson, Illinois
Son, age 11
Stephenson, Illinois · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Stephenson, Illinois
Son, age 21
Stephenson, Illinois · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Medical Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Stephenson-County, Illinois
Son, age 31
Stephenson-County, Illinois · implied b. ~1909 — 4 household members
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Freeport |
| 1935 Residence (County) | Stephenson |
| Occupation | Attendant |
| Industry | Filling station |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Harold 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). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Elizabeth Williams
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Williams
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Williams
Son · 1940 · age 31 · b. ~1909 · Illinois
★ You are viewing this record
Sibling
Leona Williams
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Williams
Sibling · 1940 · age 28
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 — Stephenson-County, Illinois
Open full size
1940 US Federal Census — Stephenson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00892-00673)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clark Cannon | 6 | Son | — | Illinois |
| 42 | Ted Barker | 44 | Head | Salesman | Missouri |
| 43 | Beatrice D Barker | 44 | Wife | — | Illinois |
| 44 | Eleanor Barker | 19 | Daughter | Stenographer | Illinois |
| 45 | Belve Jean Barker | 15 | Daughter | — | Illinois |
| 46 | Merrill J Barker | 12 | Son | — | Illinois |
| 47 | Mary (X) Flanigan | 76 | Head | — | Illinois |
| 48 | John Flanigan | 44 | Son | Salesman | Illinois |
| 49 | George M Carnefix | 70 | Head | — | Illinois |
| 50 | Mary D Carnefix | 40 | Daughter | — | Illinois |
| 51 | Charles N Collett | 58 | Head | Electrician Helper | Illinois |
| 52 | Evelyn D Collett | 55 | Wife | — | Illinois |
| 53 | Beth Ann Collett | 25 | Daughter | — | Illinois |
| 54 | Delores Lou Collett | 21 | Daughter | — | Illinois |
| 55 | Mary (X) Windette | 40 | Head | Bookkeeper | Illinois |
| 56 | Warren Stebbins | 23 | Lodger | Clerk | Illinois |
| 57 | Elizabeth Stebbins | 21 | Lodger | — | Illinois |
| 58 | Walter Gerard | 28 | Lodger | Laborer | Illinois |
| 59 | Catherine (X) Cunningham | 73 | Head | — | Pennsylvania |
| 60 | Alice Wheelock | 61 | Head | — | Illinois |
| 61 | Florence Griswold | 40 | Lodger | Music Teacher | Illinois |
| 62 | Elizabeth (X) Williams | 62 | Head | — | Germany |
| 63 | Leona Williams | 33 | Daughter | Laborer | Illinois |
| 64 | Harold Williams THIS PERSON | 31 | Son | Attendant | Illinois |
| 65 | Kenneth Williams | 28 | Son | Baker | Illinois |
| 66 | Tom Tabinski | 34 | Head | Clerk | Illinois |
| 67 | Thelma Tabinski | 37 | Wife | — | Illinois |
| 68 | Thomas E Tabinski | 4 | Son | — | Illinois |
| 69 | Lowell Evers | 27 | Head | Elevator Operator | Illinois |
| 70 | Ruth Evers | 24 | Wife | — | Illinois |
| 71 | Patricia Evers | 4 | Daughter | — | Illinois |
| 72 | John Schmidt | 76 | Head | — | Germany |
| 73 | Henrietta Schmidt | 75 | Wife | — | Germany |
| 74 | Ida Schmidt | 40 | Daughter | — | Illinois |
| 75 | Cora (X) Engler | 70 | Head | — | Illinois |
| 76 | Watson Engler | 79 | Sister | — | Illinois |
| 77 | Ezra (X) Moore | 70 | Head | — | Illinois |
| 78 | Eunice Moore | 40 | Daughter | — | Illinois |
| 79 | Clyde Arbogast | 50 | Head | Sheet Metal Worker | Illinois |
| 80 | Ethel Arbogast | 47 | Wife | — | Illinois |
Pedigree Summary
Harold + 2 siblings
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)