DC
Donald Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Wisconsin
Our Model Tree links this Donald Clark across the 1930 and 1940 US Censuses in Winnebago-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 16-person household.
Age 23
b. ~1917
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Wisconsin |
| Surname | Clark |
| Given Name | Donald B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Oshkosh City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | Salesman |
| Industry | Beverages |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 750 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Salesman |
| Township / Ward | Oshkosh City |
| Est. Birth Year | ~1917 |
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.
16 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Millie Dahlke | Spouse | — | 56 | ~1884 |
| Vernon Clark | Other | — | 54 | ~1886 |
| Margaret Klemmer | Head | — | 58 | ~1882 |
| Gertrude Klemmer | Other | — | 38 | ~1902 |
| Donald Clark | Son | — | 23 | ~1917 |
| Joan Kronitz | Daughter | — | 8 | ~1932 |
| Margaret Kronitz | Spouse | — | 36 | ~1904 |
| Ben Dahlke | Other | — | 58 | ~1882 |
| Hazel Llewellyn | Daughter | — | 24 | ~1916 |
| Peggy Kronitz | Daughter | — | 3 | ~1937 |
| Mayme Klemmer | Other | — | 52 | ~1888 |
| Eldor Dahlke | Son | — | 32 | ~1908 |
| Dewey Kronitz | Other | — | 41 | ~1899 |
| Amanda Clark | Spouse | — | 53 | ~1887 |
| Theodore Llewellyn | Other | — | 13 | ~1927 |
| Robert Llewellyn | Other | — | 11 | ~1929 |
Census Appearances
1930
Winnebago, Wisconsin
Other, age 13
Winnebago, Wisconsin · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Donald B |
| Relationship to Head | Grand Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Winnebago-County, Wisconsin
Son, age 23
Winnebago-County, Wisconsin · implied b. ~1917 — 16 household members
| Surname | Clark |
| Given Name | Donald B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Oshkosh City |
| 1935 Residence (County) | Winnebago |
| Occupation | Salesman |
| Industry | Beverages |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 750 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Donald Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Clark
Son · 1940 · age 23 · b. ~1917 · Wisconsin
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Sibling
Joan Kronitz
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Llewellyn
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peggy Kronitz
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eldor Dahlke
Sibling · 1940 · age 32
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 — Winnebago-County, Wisconsin
Open full size
1940 US Federal Census — Winnebago-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04538-00649)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Buchanan | 12 | Son | — | Wisconsin |
| 42 | Marcella D. Stein | 47 | Head | Housewife | Wisconsin |
| 43 | Joan Stein | 19 | Daughter | Student | Wisconsin |
| 44 | Thomas Stein | 14 | Son | Student | Wisconsin |
| 45 | Albert Behlowitz | 38 | Father | Finisher | Germany |
| 46 | Violet O. Behlowitz | 36 | Wife | — | Wisconsin |
| 47 | Shirley Behlowitz | 8 | Daughter | — | Wisconsin |
| 48 | Joyce Behlowitz | 4 | Daughter | — | Wisconsin |
| 49 | Charles Ziebell | 54 | Father | Upholsterer | Wisconsin |
| 50 | Ida O. Ziebell | 59 | Wife | — | Wisconsin |
| 51 | William Ziebell | 18 | Son | Student | Wisconsin |
| 52 | J. E. Schein | 29 | Father | Salesman | Wisconsin |
| 53 | Germaine Schein | 29 | Wife | — | Wisconsin |
| 54 | Eline Schein | 4 | Daughter | — | Wisconsin |
| 55 | John E. Iii Schein | 1 | Son | — | Wisconsin |
| 56 | Ella Mrs. Woller | 47 | Mother | Seamstress | Wisconsin |
| 57 | Elmer Woller | 24 | Son | Clerical | Wisconsin |
| 58 | Richard Woller | 19 | Son | Printer App. | Wisconsin |
| 59 | Leona Klemy | 45 | Lodger | Housework | Wisconsin |
| 60 | Wm. Zwicky | 86 | Head | Farmer | Pennsylvania |
| 61 | Myra Barkley | 64 | Servant | Housework | Wisconsin |
| 62 | Herbert Drews | 45 | Husband | Painter | Wisconsin |
| 63 | Margaret M. Drews | 42 | Wife | Housewife | Germany |
| 64 | Anna A. Knaak | 61 | Head | Bank Clerk | Wisconsin |
| 65 | Margaret O. Klemmer | 58 | Head | — | Wisconsin |
| 66 | Mayme Klemmer | 52 | Sister | — | Wisconsin |
| 67 | Gertrude Klemmer | 38 | Sister | Bookkeeper | Wisconsin |
| 68 | Dewey Kronitz | 41 | Father | Salesman | Wisconsin |
| 69 | Margaret Kronitz | 36 | Wife | Housewife | Missouri |
| 70 | Joan Kronitz | 8 | Daughter | — | Wisconsin |
| 71 | Peggy Kronitz | 3 | Daughter | — | Wisconsin |
| 72 | Ben O. Dahlke | 58 | Father | Metal Man | Germany |
| 73 | Millie Dahlke | 56 | Wife | — | Wisconsin |
| 74 | Eldor Dahlke | 32 | Son | Truck Driver | Wisconsin |
| 75 | Hazel Llewellyn | 24 | Daughter | Saleslady | Wisconsin |
| 76 | Theodore Llewellyn | 13 | Grandson | Student | Wisconsin |
| 77 | Robert Llewellyn | 11 | Grandson | — | Wisconsin |
| 78 | Vernon B. Clark | 54 | Father | Retired | Minnesota |
| 79 | Amanda Clark | 53 | Wife | — | Wisconsin |
| 80 | Donald B. Clark THIS PERSON | 23 | Son | Salesman | Wisconsin |
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)