EC
Eugene Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-County, Wisconsin
Our Model Tree links this Eugene Clark across the 1930 and 1940 US Censuses in Rock-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-County, Wisconsin |
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Beloit City |
| 1935 Residence (County) | Rock |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Beloit City |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Jerry Clark | Son | — | 4 | ~1936 |
| Beverly Clark | Daughter | — | 15 | ~1925 |
| Darlene Clark | Daughter | — | 2 | ~1938 |
| Freda Clark | Spouse | — | 39 | ~1901 |
| J Clark | Daughter | — | 7 | ~1933 |
| George Clark | Head | — | 44 | ~1896 |
| Phillymae Clark | Daughter | — | 9 | ~1931 |
| Eugene Clark | Son | — | 13 | ~1927 |
Census Appearances
1930
Rock, Wisconsin
Son, age 2
Rock, Wisconsin · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Edwin Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Oklahoma |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Rock-County, Wisconsin
Son, age 13
Rock-County, Wisconsin · implied b. ~1927 — 8 household members
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Beloit City |
| 1935 Residence (County) | Rock |
| Highest Grade | No 7 |
| 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 Eugene Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eugene Clark
Son · 1940 · age 13 · b. ~1927 · Wisconsin
★ You are viewing this record
Sibling
Phillymae Clark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Clark
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Clark
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beverly Clark
Sibling · 1940 · age 15
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 — Rock-County, Wisconsin
Open full size
1940 US Federal Census — Rock-County, Wisconsin
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04519-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Rough | 31 | Wife | — | Wisconsin |
| 2 | Evelyn Rough | 6 | Daughter | — | Wisconsin |
| 3 | John H. Jones | 48 | Head | Machinist | New York |
| 4 | Laura Jones | 50 | Wife | — | Wisconsin |
| 5 | Lois Jones | 19 | Daughter | — | Wisconsin |
| 6 | Frederick Jones | 17 | Son | Paper Route | Wisconsin |
| 7 | James Jones | 16 | Son | — | Illinois |
| 8 | Dora Mae Jones | 14 | Daughter | — | Michigan |
| 9 | Thea Amundsen | 83 | Mother-in-law | — | Norway |
| 10 | James Lilley | 22 | Head | Inspector | Wisconsin |
| 11 | June Lilley | 20 | Wife | — | Wisconsin |
| 12 | James Jr. Lilley | 3 | Son | — | Wisconsin |
| 13 | Ronald Lilley | 1 | Son | — | Wisconsin |
| 14 | Judith Ann Lilley | 0 | Daughter | — | Wisconsin |
| 15 | Ben Gilleward | 55 | Head | Bricklayer | Wisconsin |
| 16 | Kate Gilleward | 55 | Wife | — | Wisconsin |
| 17 | Fred E. Johnson | 50 | Head | Telegrapher | Minnesota |
| 18 | Alma Johnson | 46 | Wife | — | Wisconsin |
| 19 | Leroy Johnson | 22 | Son | Laborer | Wisconsin |
| 20 | John H. Rushford | 46 | Head | Plumber | Iowa |
| 21 | Bess Rushford | 43 | Wife | — | Iowa |
| 22 | William Fuller | 14 | Nephew | — | Wisconsin |
| 24 | Joseph Harris | 67 | Head | — | England |
| 25 | Mary Harris | 64 | Wife | Shoe Paster | Michigan |
| 26 | John H. Paulson | 31 | Head | Shoe Trimmer | Michigan |
| 27 | Gladys Paulson | 28 | Wife | — | Michigan |
| 28 | George S. Clark | 44 | Head | Laborer | Wisconsin |
| 29 | Freda Clark | 39 | Wife | — | Illinois |
| 30 | Beverly Clark | 15 | Daughter | — | Wisconsin |
| 31 | Eugene Clark THIS PERSON | 13 | Son | — | Wisconsin |
| 32 | Phillymae Clark | 9 | Daughter | — | Illinois |
| 33 | J. Maxine Clark | 7 | Daughter | — | Wisconsin |
| 34 | Jerry William Clark | 4 | Son | — | Wisconsin |
| 35 | Darlene Clark | 2 | Daughter | — | Wisconsin |
| 36 | George V. Roth | 46 | Head | Garage Worker | Illinois |
| 37 | Emily Roth | 27 | Wife | Registered Nurse | Vermont |
| 38 | Patricia June Roth | 2 | Daughter | — | Wisconsin |
| 39 | Gerald George Roth | 1 | Son | — | Wisconsin |
| 40 | Joseph Cox | 27 | Head | Machinist | 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)