MD
Mary Driscoll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this Mary Driscoll across the 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Driscoll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Milwaukee |
| 1935 Residence (County) | Milwaukee |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same Place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Milwaukee |
| Est. Birth Year | ~1928 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Driscoll | Daughter | — | 25 | ~1915 |
| Ruth Driscoll | Daughter | — | 13 | ~1927 |
| Mary Driscoll | Daughter | — | 12 | ~1928 |
| William Driscoll | Head | — | 48 | ~1892 |
| Patrick Driscoll | Other | — | 1 | ~1939 |
| Louis Burby | Other | — | 63 | ~1877 |
| John Driscoll | Son | — | 17 | ~1923 |
| William Driscoll | Son | — | 23 | ~1917 |
| Robert Driscoll | Son | — | 8 | ~1932 |
| Katherine Driscoll | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Milwaukee, Wisconsin
Daughter, age 2
Milwaukee, Wisconsin · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Driscoll |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | New Jersey |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Milwaukee-County, Wisconsin
Daughter, age 12
Milwaukee-County, Wisconsin · implied b. ~1928 — 10 household members
| Surname | Driscoll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Milwaukee |
| 1935 Residence (County) | Milwaukee |
| Highest Grade | 4 |
| 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 Driscoll across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Driscoll
Daughter · 1940 · age 12 · b. ~1928 · Wisconsin
★ You are viewing this record
Sibling
John Driscoll
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Driscoll
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Driscoll
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Driscoll
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Driscoll
Sibling · 1940 · age 8
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
38 people indexed on this census page (nara:1940:m-t0627-04564-00573)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 3 | Edwin Smukowski | 39 | Head | Machinist | Wisconsin |
| 4 | Katherine Smukowski | 29 | Wife | — | New York |
| 5 | Edwin Jr. Smukowski | 6 | Son | — | Wisconsin |
| 6 | Marlene Smukowski | 5 | Daughter | — | Wisconsin |
| 7 | Thomas Smukowski | 4 | Son | — | Wisconsin |
| 8 | Carol Smukowski | 1 | Daughter | — | Wisconsin |
| 9 | Frank Berdunowicz | 58 | Head | Assembler | Austria |
| 10 | Julia Berdunowicz | 57 | Wife | — | Poland |
| 11 | John Swendrowski | 21 | Nephew | Laborer | Michigan |
| 12 | Jeanette Swendrowski | 20 | Lodger | — | Wisconsin |
| 13 | John M. Swendrowski | 0 | Lodger | — | Wisconsin |
| 14 | Michael Mikas | 58 | Head | Tailor | Lithuania |
| 15 | Hanna Mikas | 47 | Wife | — | Wisconsin |
| 16 | Ruth Mikas | 22 | Daughter | Clerk | Wisconsin |
| 17 | Carol Mikas | 17 | Daughter | — | Wisconsin |
| 18 | Earl Mikas | 10 | Son | — | Wisconsin |
| 19 | Selma Schultz | 50 | Sister | Clerk | Germany |
| 20 | Oscar Bing | 57 | Head | Carpenter | Norway |
| 21 | Nilda Bing | 55 | Wife | — | Norway |
| 22 | Alfheld Bing | 30 | Daughter | Bookkeeper | Wisconsin |
| 23 | Einar Bing | 22 | Son | Clerk | Wisconsin |
| 24 | Harold Bing | 20 | Son | Clerk | Wisconsin |
| 25 | Augusta Groff | 64 | Head | — | Wisconsin |
| 26 | Frank Groff | 69 | Husband | Proprietor | Wisconsin |
| 27 | Erwin Groff | 37 | Son | Clerk | Wisconsin |
| 28 | Marie Groff | 35 | Daughter | Special Work | Wisconsin |
| 29 | Adolph H. Gravell | 47 | Head | Agent | Wisconsin |
| 30 | Helen Gravell | 41 | Wife | — | Wisconsin |
| 31 | William Driscoll | 48 | Head | Auto Mechanic | Wisconsin |
| 32 | Katherine Driscoll | 42 | Wife | — | New Jersey |
| 33 | William Jr. Driscoll | 23 | Son | Special Work | Wisconsin |
| 34 | Catherine Driscoll | 25 | Daughter | — | Wisconsin |
| 35 | John Driscoll | 17 | Son | — | Wisconsin |
| 36 | Mary Driscoll THIS PERSON | 12 | Daughter | — | Wisconsin |
| 37 | Robert Driscoll | 8 | Son | — | Wisconsin |
| 38 | Louis Burby | 63 | Brother | — | New Jersey |
| 39 | Ruth Driscoll | 13 | Daughter | — | Wisconsin |
| 40 | Patrick Driscoll | 1 | Grand-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)