EC
Eva Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marathon-County, Wisconsin
Our Model Tree links this Eva Clark across the 1930 and 1940 US Censuses in Marathon-County, Wisconsin (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marathon-County, Wisconsin |
| Surname | Clark |
| Given Name | Eva |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Mosinee Township |
| 1935 Residence (County) | Marathon |
| Additional Details | |
| Occupation | Housewife |
| Industry | at Home |
| Class of Worker | NP |
| Highest Grade | C 1 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Housewife |
| Township / Ward | Mosinee Township |
| Est. Birth Year | ~1892 |
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 Eva | Age | Birth yr |
|---|---|---|---|---|
| Robert Clark | Son | — | 17 | ~1923 |
| Arthur Clark | Head | — | 48 | ~1892 |
| Eva Clark | Spouse | — | 48 | ~1892 |
| Keith Clark | Son | — | 15 | ~1925 |
| Clara Clark | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Marathon, Wisconsin
Spouse, age 39
Marathon, Wisconsin · implied b. ~1891 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Eva |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Marathon-County, Wisconsin
Spouse, age 48
Marathon-County, Wisconsin · implied b. ~1892 — 5 household members
| Surname | Clark |
| Given Name | Eva |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Mosinee Township |
| 1935 Residence (County) | Marathon |
| Occupation | Housewife |
| Industry | at Home |
| Class of Worker | NP |
| Highest Grade | C 1 |
| 1935 Residence | Same House |
| 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 Eva Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eva Clark
Spouse · 1940 · age 48 · b. ~1892 · Wisconsin
★ 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 — Marathon-County, Wisconsin
Open full size
1940 US Federal Census — Marathon-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04496-00876)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stanley Valenta | 42 | Head | Shipping Clerk | Wisconsin |
| 2 | Bertha Valenta | 37 | Wife | Housewife | Illinois |
| 3 | June Valenta | 5 | Daughter | — | — |
| 4 | Axel T. Carlson | 66 | Head | Oiler | Illinois |
| 5 | Emma Carlson | 65 | Wife | Housewife | Sweden |
| 6 | Richard Fontaine | 33 | Head | Paper Maker | Wisconsin |
| 7 | Ethel Fontaine | 28 | Wife | Housewife | Illinois |
| 8 | Rita Belle Fontaine | 9 | Daughter | — | Wisconsin |
| 9 | Janet Lee Fontaine | 3 | Daughter | — | — |
| 10 | Denese Hansen | 59 | Mother | Housewife | Wisconsin |
| 11 | Frank A. Martin | 58 | Head | Brick Layer | Michigan |
| 12 | Rose Martin | 52 | Wife | Housewife | Wisconsin |
| 13 | David Martin | 31 | Son | Bricklayer | Wisconsin |
| 14 | Laverne Martin | 17 | Daughter | Helper | Wisconsin |
| 15 | William Lange | 50 | Head | Laborer | Germany |
| 16 | Laura Lange | 40 | Wife | Housewife | Wisconsin |
| 17 | Edwin Lange | 19 | Son | Help | Wisconsin |
| 18 | Melvin Lange | 17 | Son | Help | Wisconsin |
| 19 | Ruth Lange | 15 | Daughter | House Work | Wisconsin |
| 20 | Mayford Lange | 12 | Son | — | Wisconsin |
| 21 | Reinold Lange | 10 | Son | — | Wisconsin |
| 22 | Ivan Lange | 8 | Son | — | Wisconsin |
| 23 | Irvin Lange | 4 | Son | — | — |
| 24 | Arthur Clark | 48 | Head | Electrical Engineer | Wisconsin |
| 25 | Eva Clark THIS PERSON | 48 | Wife | Housewife | Wisconsin |
| 26 | Robert Clark | 17 | Son | Helper | Wisconsin |
| 27 | Keith Clark | 15 | Son | Helper | Wisconsin |
| 28 | Clara Clark | 11 | Daughter | — | Wisconsin |
| 29 | Emil M. Dalton | 36 | Head | Laboratory | Wisconsin |
| 30 | May Dalton | 33 | Wife | Housewife | Wisconsin |
| 31 | Dorothy May Dalton | 14 | Daughter | House Work | Wisconsin |
| 32 | Lester Dalton | 13 | Son | — | Wisconsin |
| 33 | Betty Jane Dalton | 12 | Daughter | — | Wisconsin |
| 34 | David Lee Dalton | 7 | Son | — | Wisconsin |
| 35 | Michal Zych | 53 | Head | Laborer | Poland |
| 36 | Emily Zych | 47 | Wife | Housewife | Poland |
| 37 | Mary Zych | 24 | Daughter | Radio Assembly | Illinois |
| 38 | Stella Zych | 21 | Daughter | House Work | Illinois |
| 39 | Walter Zych | 16 | Son | Helper | Illinois |
| 40 | Emil Zych | 15 | Son | Helper | Illinois |
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)