MF
Mary Fischer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Waukesha-County, Wisconsin
Our Model Tree links this Mary Fischer across the 1930 and 1940 US Censuses in Waukesha-County, Wisconsin (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 6-person household.
Age 48
b. ~1892
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Waukesha-County, Wisconsin |
| Surname | Fischer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Waukesha City |
| 1935 Residence (County) | Waukesha |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Waukesha City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ann Fischer | Daughter | — | 19 | ~1921 |
| William Fischer | Son | — | 21 | ~1919 |
| June Fischer | Daughter | — | 18 | ~1922 |
| Wm Fischer | Head | — | 52 | ~1888 |
| Mary Fischer | Spouse | — | 48 | ~1892 |
| Theodora Fischer | Daughter | — | 24 | ~1916 |
Census Appearances
1930
Waukesha, Wisconsin
Other, age 38
Waukesha, Wisconsin · implied b. ~1892 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fisher |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 24 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Waukesha-County, Wisconsin
Spouse, age 48
Waukesha-County, Wisconsin · implied b. ~1892 — 6 household members
| Surname | Fischer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Waukesha City |
| 1935 Residence (County) | Waukesha |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 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 Mary Fischer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Fischer
Spouse · 1940 · age 48 · b. ~1892 · Wisconsin
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Waukesha-County, Wisconsin
Open full size
1940 US Federal Census — Waukesha-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04534-00576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mona Wojahn | 26 | Daughter | — | Wisconsin |
| 2 | Harland Wojahn | 17 | Son | — | Wisconsin |
| 3 | Burton Wojahn | 13 | Son | — | Wisconsin |
| 4 | Edward Buchholz | 46 | Head | Letter Carrier | Wisconsin |
| 5 | Alma Buchholz | 33 | Wife | — | Wisconsin |
| 6 | Mary Jane Buchholz | 17 | Daughter | — | Wisconsin |
| 7 | Ruth Buchholz | 16 | Daughter | — | Wisconsin |
| 8 | Frances Buchholz | 15 | Daughter | — | Wisconsin |
| 9 | Edward Buchholz | 12 | Son | — | Wisconsin |
| 10 | Georgia Buchholz | 9 | Daughter | — | Wisconsin |
| 11 | William Rohde | 53 | Head | Layout Man | Wisconsin |
| 12 | Wanda Rohde | 54 | Wife | — | Wisconsin |
| 13 | Helen Rohde | 29 | Daughter | Stenographer | Wisconsin |
| 14 | Marcella Rohde | 24 | Daughter | Office Work | Wisconsin |
| 15 | Lillian Rohde | 22 | Daughter | Office Work | Wisconsin |
| 16 | Allen Warden | 29 | Head | Test Man | Wisconsin |
| 17 | Lynetta Warden | 30 | Wife | — | Wisconsin |
| 18 | Lee Warden | 1 | Son | — | Wisconsin |
| 19 | Vincent Raap | 35 | Head | Carpenter | Illinois |
| 20 | Anna Raap | 35 | Wife | — | Wisconsin |
| 21 | Margaret Raap | 10 | Daughter | — | Wisconsin |
| 22 | Veronica Raap | 7 | Daughter | — | Wisconsin |
| 23 | Patricia Raap | 5 | Daughter | — | Wisconsin |
| 24 | W. W. Perry | 56 | Head | Insurance Co. | Wisconsin |
| 25 | Olga Perry | 51 | Wife | — | Wisconsin |
| 26 | Ellwood Braun | 39 | Head | Estimator | Penn. |
| 27 | Mabel Braun | 35 | Wife | — | Penn. |
| 28 | Doris Braun | 8 | Daughter | — | Penn. |
| 29 | Carol Braun | 4 | Daughter | — | Wisconsin |
| 30 | Wm. C. Fischer | 52 | Head | Laborer | Wisconsin |
| 31 | Mary Fischer THIS PERSON | 48 | Wife | — | Wisconsin |
| 32 | Theodora Fischer | 24 | Daughter | Sales Lady | Wisconsin |
| 33 | William Fischer | 21 | Son | Machinist | Wisconsin |
| 34 | Ann Fischer | 19 | Daughter | House Work | Wisconsin |
| 35 | June Fischer | 18 | Daughter | — | Wisconsin |
| 36 | Henry Frazer | 57 | Head | Printer | Illinois |
| 37 | Ella Frazer | 53 | Wife | — | Illinois |
| 38 | Nyman Comer | 49 | Head | Baker | England |
| 39 | Lillie Comer | 51 | Wife | Helper In Bakery | England |
| 40 | Reginald Comer | 25 | Son | — | England |
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)