MZ
Mary Zimmerman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this Mary Zimmerman across the 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Milwaukee |
| 1935 Residence (County) | Milwaukee |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Milwaukee |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Zimmerman | Daughter | — | 17 | ~1923 |
| Shirley Zimmerman | Daughter | — | 14 | ~1926 |
| Charlotte Zimmerman | Daughter | — | 18 | ~1922 |
| Judith Zimmerman | Daughter | — | ~1940 | |
| Margaret Zimmerman | Daughter | — | 13 | ~1927 |
| Ralph Zimmerman | Head | — | 42 | ~1898 |
| Richard Zimmerman | Son | — | 7 | ~1933 |
| Ralph Zimmerman | Son | — | 16 | ~1924 |
| John Zimmerman | Son | — | 9 | ~1931 |
| William Zimmerman | Son | — | 3 | ~1937 |
| Harriett Zimmerman | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Milwaukee, Wisconsin
Daughter, age 7
Milwaukee, Wisconsin · implied b. ~1923 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Milwaukee-County, Wisconsin
Daughter, age 17
Milwaukee-County, Wisconsin · implied b. ~1923 — 11 household members
| Surname | Zimmerman |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Milwaukee |
| 1935 Residence (County) | Milwaukee |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Zimmerman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Zimmerman
Daughter · 1940 · age 17 · b. ~1923 · Wisconsin
★ You are viewing this record
Sibling
William Zimmerman
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Judith Zimmerman
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Zimmerman
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Zimmerman
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Zimmerman
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Zimmerman
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Zimmerman
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Zimmerman
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 — Milwaukee-County, Wisconsin
Open full size
1940 US Federal Census — Milwaukee-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04502-00107)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | La Verne Hernke | 10 | daughter | — | Wisconsin |
| 2 | Ralph Zimmerman | 42 | head | Salesman | Minnesota |
| 3 | Harriett Zimmerman | 42 | wife | — | Minnesota |
| 4 | Charlotte Zimmerman | 18 | daughter | — | Minnesota |
| 5 | Mary Zimmerman THIS PERSON | 17 | daughter | — | Minnesota |
| 6 | Ralph Zimmerman | 16 | son | — | Minnesota |
| 7 | Shirley Zimmerman | 14 | daughter | — | Minnesota |
| 8 | Margaret Zimmerman | 13 | daughter | — | Wisconsin |
| 9 | John Zimmerman | 9 | son | — | Wisconsin |
| 10 | Richard Zimmerman | 7 | son | — | Wisconsin |
| 11 | William Zimmerman | 3 | son | — | Wisconsin |
| 12 | Judith Zimmerman | 0 | daughter | — | Wisconsin |
| 13 | Roman Papowski | 55 | head | Painter | Germany |
| 14 | Helen Papowski | 47 | wife | — | Poland |
| 15 | Isabel Papowski | 24 | daughter | Stenographer | Wisconsin |
| 16 | Florence Papowski | 17 | daughter | — | Wisconsin |
| 17 | Rudolph Delopst | 28 | son-in-law | Welder | Wisconsin |
| 18 | Alice Delopst | 27 | daughter | — | Wisconsin |
| 19 | Richard Delopst | 4 | son | — | Wisconsin |
| 20 | Cynthia Delopst | 1 | daughter | — | Wisconsin |
| 21 | John Kufrowski | 47 | head | Machinist | Wisconsin |
| 22 | Theresa Kufrowski | 29 | wife | — | Wisconsin |
| 23 | Alice Kufrowski | 6 | daughter | — | Wisconsin |
| 24 | David Kufrowski | 2 | son | — | Wisconsin |
| 25 | Leo Klamrowski | 36 | head | Truck Driver | Wisconsin |
| 26 | Elsie Klamrowski | 36 | wife | — | Wisconsin |
| 27 | Raymond Klamrowski | 4 | son | — | Wisconsin |
| 28 | Albert Hernke | 47 | head | Machinist | Wisconsin |
| 29 | Julia Hernke | 45 | wife | — | Wisconsin |
| 30 | Mathias Hernke | 21 | son | New Worker | Wisconsin |
| 31 | Elaine Hernke | 20 | daughter | Maid | Wisconsin |
| 32 | Marvin Hernke | 17 | son | — | Wisconsin |
| 33 | Albert Hernke | 12 | son | — | Wisconsin |
| 34 | Frank Kozlow | 52 | head | Laborer | Poland |
| 35 | Victoria Kozlow | 52 | wife | — | Poland |
| 36 | Victor Kozlow | 23 | son | Truck Driver | Kansas |
| 37 | Sarkis Kashian | 46 | head | Press Room | Turkey |
| 38 | Anna Kashian | 33 | wife | — | Turkey |
| 39 | Samuel Kashian | 13 | son | — | Wisconsin |
| 40 | John Kashian | 8 | son | — | 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)