KC
Kenneth Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Stephenson-County, Illinois
Our Model Tree links this Kenneth Clark across the 1920, 1930 and 1940 US Censuses in Stephenson-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Mabel — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Stephenson-County, Illinois |
| Surname | Clark |
| Given Name | Kenneth K. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Florence Township |
| 1935 Residence (County) | Stephenson |
| Additional Details | |
| Occupation | salesman |
| Industry | coffee roaster |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Florence Township |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Kenneth | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Clark | Head | — | 34 | ~1906 |
| Hattie Clark | Spouse | — | 34 | ~1906 |
| Kenneth Clark | Son | — | 9 | ~1931 |
| Mabelann Clark | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Stephenson, Illinois
Son, age 14
Stephenson, Illinois · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Stephenson, Illinois
Other, age 25
Stephenson, Illinois · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Kenneth K |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Salesman |
| Industry | Groceries |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Stephenson-County, Illinois
Head, age 34
Stephenson-County, Illinois · implied b. ~1906 — 4 household members
| Surname | Clark |
| Given Name | Kenneth K. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Florence Township |
| 1935 Residence (County) | Stephenson |
| Occupation | salesman |
| Industry | coffee roaster |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 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 Kenneth Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Clark (~0.92 confidence) and mother Mabel Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Clark
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mabel Clark
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Kenneth Clark
Head · 1940 · age 34 · b. ~1906 · Illinois
★ 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 — 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-t0627-00892-00108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mabel C. Small | 53 | mother | Bookkeeper | Minnesota |
| 2 | William J. Finn | 48 | head | Engineer | Ireland |
| 3 | Eleanor Finn | 45 | wife | — | Illinois |
| 4 | Dolores Finn | 19 | daughter | Forewoman | Illinois |
| 5 | William P. Finn | 17 | son | Station Attendant | Illinois |
| 6 | Norman Schneiderwind | 16 | lodger | — | Wisconsin |
| 7 | David P. Plum | 30 | head | Salesman | Illinois |
| 8 | Irma Plum | 30 | wife | — | Illinois |
| 9 | Jo Plum | 11 | daughter | — | Illinois |
| 10 | Kenneth K. Clark THIS PERSON | 34 | head | Salesman | Illinois |
| 11 | Hattie Mae Clark | 34 | wife | — | Kentucky |
| 12 | Mabelann Clark | 10 | daughter | — | Illinois |
| 13 | Kenneth Jr. Clark | 9 | son | — | Illinois |
| 14 | Clifford Devore | 37 | head | Electrotpyer | Iowa |
| 15 | Edna Devore | 38 | wife | — | Wisconsin |
| 16 | Gloria Devore | 14 | daughter | — | Wisconsin |
| 17 | Phyllis Devore | 11 | daughter | — | Wisconsin |
| 18 | Clifford Hageman | 44 | head | Manager | Illinois |
| 19 | Sadie Hageman | 42 | wife | — | Illinois |
| 20 | Vere Hageman | 15 | son | — | Illinois |
| 21 | Peter J. Crownover | 45 | head | Salesman | Tennessee |
| 22 | Gertrude T. Crownover | 35 | wife | — | Indiana |
| 23 | Peter Jr. Crownover | 5 | son | — | Arkansas |
| 24 | Paul Crownover | 4 | son | — | Illinois |
| 25 | Alice Boelkes | 21 | maid | Maid | Illinois |
| 26 | Fred J. Strahn | 39 | head | Plumber | Illinois |
| 27 | Naomi Strahn | 35 | wife | — | Illinois |
| 28 | Michael Haren | 75 | head | Farm Owner | Wisconsin |
| 29 | Winifred Haren | 70 | wife | — | Wisconsin |
| 30 | May Deike | 46 | head | Laborer | Germany |
| 31 | Hedwig Deike | 47 | wife | — | Germany |
| 32 | Helmut Deike | 19 | son | Laborer | Germany |
| 33 | Walter Deike | 18 | son | — | Germany |
| 34 | Anna Marie Deike | 16 | daughter | Maid | Germany |
| 35 | Elsie Deike | 13 | daughter | — | Germany |
| 36 | Hildegarde Deike | 6 | daughter | — | Illinois |
| 37 | Fred W. Smith | 72 | head | Farm Owner | Illinois |
| 38 | Louisa Smith | 71 | wife | — | Illinois |
| 39 | Jacob W. Good | 57 | head | Carpenter | Illinois |
| 40 | Erma Good | 51 | wife | — | Illinois |
Pedigree Summary
Kenneth
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)