MR
Mary Roach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Eau-Claire-County, Wisconsin
Our Model Tree links this Mary Roach across the 1930 and 1940 US Censuses in Eau-Claire-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Eau-Claire-County, Wisconsin |
| Surname | Roach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Eau Claire City |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Roach | Daughter | — | 16 | ~1924 |
| William Roach | Head | — | 50 | ~1890 |
| William Roach | Son | — | 7 | ~1933 |
| Joseph Roach | Son | — | 17 | ~1923 |
| Arthur Roach | Son | — | 5 | ~1935 |
| Rosella Roach | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Eau Claire, …
Daughter, age 6
Eau Claire, Wisconsin · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roach |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Eau-Claire-County, Wisconsin
Daughter, age 16
Eau-Claire-County, Wisconsin · implied b. ~1924 — 6 household members
| Surname | Roach |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Highest Grade | Hs 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 Mary Roach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Roach
Daughter · 1940 · age 16 · b. ~1924 · Wisconsin
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Sibling
Joseph Roach
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Roach
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Roach
Sibling · 1940 · age 7
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 — Eau-Claire-County, Wisconsin
Open full size
1940 US Federal Census — Eau-Claire-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04477-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sidney Gilleson | 3 | Son | — | Wisconsin |
| 2 | Peter Gilleson | 1 | Son | — | Wisconsin |
| 3 | Joseph Blomedahl | 38 | Head | Cuppo Fitter | Wisconsin |
| 4 | Alma Blomedahl | 30 | Wife | — | Wisconsin |
| 5 | Rodger Blomedahl | 11 | Son | — | Wisconsin |
| 6 | John Blomedahl | 8 | Daughter | — | Wisconsin |
| 7 | Mary O. Judkins | 41 | Head | — | Wisconsin |
| 8 | John Judkins | 17 | Son | — | Wisconsin |
| 9 | Frank Judkins | 13 | Son | — | Wisconsin |
| 10 | Margaret Judkins | 10 | Daughter | — | Wisconsin |
| 11 | Daniel Judkins | 4 | Son | — | Wisconsin |
| 12 | Sam Brandell | 65 | Head | Street Sweeper | Wisconsin |
| 13 | Stella Brandell | 63 | Wife | — | Wisconsin |
| 14 | Clyde Hatra | 33 | Head | Route Supervisor | Illinois |
| 15 | Annas Hatra | 35 | Wife | Clerk | Rumania |
| 16 | William Roach | 50 | Head | Electrical Operator | Wisconsin |
| 17 | Rosella Roach | 43 | Wife | — | Wisconsin |
| 18 | Joseph Roach | 17 | Son | — | Wisconsin |
| 19 | Mary Roach THIS PERSON | 16 | Daughter | — | Wisconsin |
| 20 | William Roach | 7 | Son | — | Wisconsin |
| 21 | Arthur Roach | 5 | Son | — | Wisconsin |
| 22 | Philip L. Hauser | 29 | Head | Route Supervisor | Wisconsin |
| 23 | Emma Hauser | 28 | Wife | — | Wisconsin |
| 24 | Patricia Hauser | 3 | Daughter | — | Wisconsin |
| 25 | Philip J. Hauser | 1 | Son | — | Wisconsin |
| 26 | Harold Chamberlain | 41 | Head | Tire Builder | Wisconsin |
| 27 | Olive Chamberlain | 33 | Wife | — | Wisconsin |
| 28 | Gloria Chamberlain | 16 | Son | — | Wisconsin |
| 29 | Charles Stolp | 29 | Head | Truck Driver | Indiana |
| 30 | Agnes Stolp | 28 | Wife | — | Wisconsin |
| 31 | Myra Stolp | 8 | Daughter | — | Indiana |
| 32 | Charles Stolp | 4 | Son | — | Wisconsin |
| 33 | David Stolp | 3 | Son | — | Wisconsin |
| 34 | Alta Wahl | 36 | Head | — | Wisconsin |
| 35 | Albert Foster | 52 | Head | Painter & Decorator | Wisconsin |
| 36 | Marjorie Foster | 30 | Wife | — | Wisconsin |
| 37 | Alice Mae Foster | 9 | Daughter | — | Wisconsin |
| 38 | Emma Jean Foster | 7 | Daughter | — | Wisconsin |
| 39 | Audrey Ann Foster | 5 | Daughter | — | Wisconsin |
| 40 | Judith Kay Foster | 1 | Daughter | — | 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)