HW
Harold Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this Harold Williams across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Edna — first a head (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Washington Twp |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Arlene Williams | Daughter | — | 5 | ~1935 |
| Joan Williams | Daughter | — | 7 | ~1933 |
| Elizabeth Williams | Daughter | — | 1 | ~1939 |
| Harold Williams | Head | — | 34 | ~1906 |
| Ruth Williams | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Marion, Iowa
Son, age 13
Marion, Iowa · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marion, Iowa
Son, age 24
Marion, Iowa · implied b. ~1906 — 48 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Herald W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Head, age 34
Marion-County, Iowa · implied b. ~1906 — 5 household members
| Surname | Williams |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Rural |
| 1935 Residence (County) | Marion |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 65 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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: father Charles Williams (~0.92 confidence) and mother Edna Williams (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Williams
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Edna Williams
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Williams
Head · 1940 · age 34 · b. ~1906 · Iowa
★ 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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00787)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred D Klooburgh | 49 | Head | Farmer | Iowa |
| 2 | Ethel Klooburgh | 44 | Wife | — | Iowa |
| 3 | Winifred Klooburgh | 23 | Daughter | — | Iowa |
| 4 | Mary Klooburgh | 22 | Daughter | — | Iowa |
| 5 | Robert Klooburgh | 20 | Son | — | Iowa |
| 6 | Dorothy Klooburgh | 18 | Daughter | — | Iowa |
| 7 | Leota Klooburgh | 17 | Daughter | — | Iowa |
| 8 | Ralph Klooburgh | 10 | Son | — | Iowa |
| 9 | Esther Klooburgh | 9 | Daughter | — | Iowa |
| 10 | Dixie Klooburgh | 5 | Daughter | — | Iowa |
| 11 | Doris Klooburgh | 3 | Daughter | — | Iowa |
| 12 | Claude Fortune | 35 | Head | Farmer | Iowa |
| 13 | Mayme Fortune | 30 | Wife | — | Iowa |
| 14 | Betty Fortune | 11 | Daughter | — | Iowa |
| 15 | James Fortune | 10 | Son | — | Iowa |
| 16 | Jerry Fortune | 5 | Son | — | Iowa |
| 17 | Jack Fortune | 2 | Son | — | Iowa |
| 18 | Caroline Fortune | 0 | Daughter | — | Iowa |
| 19 | John D Heath | 64 | Head | Farmer | Iowa |
| 20 | Sarah Heath | 61 | Wife | — | Wales |
| 21 | Clifford Wright | 30 | Head | Farmer | Tenn |
| 22 | Ruth Wright | 29 | Wife | — | Iowa |
| 23 | Lester Crandall | 44 | Head | Farmer | Oregon |
| 24 | Myrtle Crandall | 45 | Wife | — | Iowa |
| 25 | Maxine Crandall | 21 | Daughter | — | Iowa |
| 26 | Pauline Crandall | 19 | Daughter | — | Iowa |
| 27 | Clinton Crandall | 18 | Son | — | Iowa |
| 28 | Kathryn Crandall | 16 | Daughter | — | Iowa |
| 29 | Calvin Crandall | 15 | Son | — | Iowa |
| 30 | Azel Crandall | 12 | Son | — | Iowa |
| 31 | Donald Crandall | 11 | Son | — | Iowa |
| 32 | Twila Crandall | 8 | Daughter | — | Iowa |
| 33 | Evelyn Crandall | 4 | Daughter | — | Iowa |
| 34 | Shirley Crandall | 3 | Daughter | — | Iowa |
| 35 | Carole Crandall | 0 | Daughter | — | Iowa |
| 36 | Harold Williams THIS PERSON | 34 | Head | Farmer | Iowa |
| 37 | Ruth Williams | 27 | Wife | — | Iowa |
| 38 | Joan Williams | 7 | Daughter | — | Iowa |
| 39 | Arlene Williams | 5 | Daughter | — | Iowa |
| 40 | Elizabeth Williams | 1 | Daughter | — | 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)