WB
William Becker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sioux-County, Iowa
Our Model Tree links this William Becker across the 1920, 1930 and 1940 US Censuses in Sioux-County, Iowa (XGBoost, ~Confirmed), with identified parents Louis & Jennie — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sioux-County, Iowa |
| Surname | Becker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Reading Twp |
| 1935 Residence (County) | Sioux |
| Additional Details | |
| Occupation | Farm Hand |
| Industry | Gen Farming |
| Class of Worker | NP |
| Hours Worked | 48 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Hand |
| Township / Ward | Reading Twp |
| Est. Birth Year | ~1919 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Gladys Becker | Daughter | — | 14 | ~1926 |
| Gerrit Becker | Head | — | 44 | ~1896 |
| Kathryn Rukland | Other | — | 43 | ~1897 |
| William Becker | Son | — | 21 | ~1919 |
| Wallace Becker | Son | — | 22 | ~1918 |
Census Appearances
1920
Sioux, Iowa
Son, age 1
Sioux, Iowa · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Becker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Sioux, Iowa
Son, age 11
Sioux, Iowa · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Becker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Sioux-County, Iowa
Son, age 21
Sioux-County, Iowa · implied b. ~1919 — 5 household members
| Surname | Becker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Reading Twp |
| 1935 Residence (County) | Sioux |
| Occupation | Farm Hand |
| Industry | Gen Farming |
| Class of Worker | NP |
| Hours Worked | 48 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 William Becker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Becker (~0.92 confidence) and mother Jennie Becker (~0.92 confidence) and father Gerrit Becker (~0.92 confidence) and mother Jennie Becker (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Becker
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Jennie Becker
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Gerrit Becker
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Jennie Becker
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Becker
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Wallace Becker
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Becker
Sibling · 1940 · age 14
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 — Sioux-County, Iowa
Open full size
1940 US Federal Census — Sioux-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01205-00545)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Delphine Vander Ham | 17 | Daughter | Housework | Iowa |
| 2 | Eugene Vander Ham | 15 | Son | Farm Hand | Iowa |
| 3 | Darlene Vander Ham | 12 | Daughter | — | Iowa |
| 4 | Helena Vander Ham | 72 | Mother | — | Netherlands |
| 5 | Joe B. Vander Hof | 33 | Head | Farm Operator | Netherlands |
| 6 | John Vander Hof | 36 | Brother | Farm Operator | Netherlands |
| 7 | Adrian Vander Hof | 71 | Father | — | Netherlands |
| 8 | Gertrude De Raad | 41 | Housekeeper | Housekeeper | Minnesota |
| 9 | Sam Van Kooten | 39 | Head | Farm Operator | Netherlands |
| 10 | Gertrude Van Kooten | 37 | Wife | — | Netherlands |
| 11 | Eremont Kulcker | 39 | Head | Farm Operator | Iowa |
| 12 | Viola Kulcker | 41 | Wife | — | Iowa |
| 13 | Robert Kulcker | 16 | Son | Farm Hand | Iowa |
| 14 | Dan Kuecker | 37 | Head | Farm Operator | Iowa |
| 15 | Nellie Kuecker | 32 | Wife | — | Iowa |
| 16 | Violet Marie Kuecker | 17 | Daughter | Maid | Iowa |
| 17 | Ralph Kuecker | 12 | Son | — | Iowa |
| 18 | Dorotha Kuecker | 10 | Daughter | — | Iowa |
| 19 | Helen Kuecker | 6 | Daughter | — | Iowa |
| 20 | Lane Slotweg | 47 | Head | Farm Operator | Netherlands |
| 21 | Bert Vogelzang | 47 | Hand | Farm Hand | Netherlands |
| 22 | Jennie Vogelzang | 46 | Housemaid | House Maid | Netherlands |
| 23 | Sadie Vogelzang | 17 | Maid | — | Iowa |
| 24 | Evelyn Vogelzang | 8 | Maid | — | Iowa |
| 25 | Gerrit Becker | 44 | Head | Farm Operator | Iowa |
| 26 | Wallace Becker | 22 | Son | Farm Hand | Iowa |
| 27 | William Becker THIS PERSON | 21 | Son | Farm Hand | Iowa |
| 28 | Gladys Becker | 14 | Daughter | — | Iowa |
| 29 | Kathryn Rukland | 43 | Maid | Maid | Iowa |
| 30 | Ronald Becker | 23 | Head | Farm Operator | Iowa |
| 31 | Jenny Becker | 26 | Wife | — | So Dakota |
| 32 | Virmad B. Vos | 46 | Head | Farm Operator | Netherlands |
| 33 | Effie Vos | 42 | Wife | — | Iowa |
| 34 | Gertrude De Ruyter | 15 | Maid | Maid | Iowa |
| 35 | Carl W. Baack | 46 | Head | Farm Operator | Iowa |
| 36 | Kathryn Baack | 47 | Wife | — | Iowa |
| 37 | Dorothy Baack | 18 | Daughter | — | Iowa |
| 38 | Donald Baack | 17 | Son | — | Iowa |
| 39 | Doris Baack | 5 | Daughter | — | Iowa |
| 40 | Dwane Baack | 2 | Son | — | Iowa |
Pedigree Summary
William + 2 siblings
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)