MC
Mary Cullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this Mary Cullen across the 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Milwaukee |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Milwaukee |
| Est. Birth Year | ~1921 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Cullen | Son | — | 15 | ~1925 |
| Mary Cullen | Daughter | — | 19 | ~1921 |
| Margaret Cullen | Daughter | — | 14 | ~1926 |
| Thomas Cullen | Head | — | 51 | ~1889 |
| Grace Cullen | Spouse | — | 52 | ~1888 |
| John Cullen | Son | — | 25 | ~1915 |
| Phillip Cullen | Son | — | 17 | ~1923 |
Census Appearances
1930
Milwaukee, Wisconsin
Daughter, age 8
Milwaukee, Wisconsin · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Killen |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Milwaukee-County, Wisconsin
Daughter, age 19
Milwaukee-County, Wisconsin · implied b. ~1921 — 7 household members
| Surname | Cullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (County) | Milwaukee |
| Class of Worker | 0 |
| Highest Grade | C-2 |
| 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 Cullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cullen
Daughter · 1940 · age 19 · b. ~1921 · Wisconsin
★ You are viewing this record
Sibling
Phillip Cullen
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cullen
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cullen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Cullen
Sibling · 1940 · age 14
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
37 people indexed on this census page (nara:1940:m-t0627-04542-00131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth Wachter | 30 | Wife | Finishing | Germany |
| 42 | Betty Wachter | 0 | Daughter | — | Wisconsin |
| 43 | George Anero | 38 | Head | Desk Clerk | Switzerland |
| 44 | Marcella Anero | 36 | Wife | — | Wisconsin |
| 45 | Paul Anero | 5 | Son | — | Wisconsin |
| 46 | Michael Anero | 2 | Son | — | Wisconsin |
| 47 | Gustave Gutenau | 56 | Lodger | Bartender | Germany |
| 48 | Ilie Roberts | 49 | Head | 48 | Wisconsin |
| 49 | Ivan Roberts | 27 | Son | 40 | Ohio |
| 50 | Norma Roberts | 24 | Daughter-in-law | 40 | Wisconsin |
| 51 | Rose Lando | 25 | Lodger | 44 | Wisconsin |
| 52 | Ray Giessen | 50 | Head | 40 | Wisconsin |
| 53 | Cecelia Giessen | 49 | Wife | — | Wisconsin |
| 54 | Jack Harris | 24 | Step son | 0 | Wisconsin |
| 55 | Myrtle Harris | 26 | Step daughter | 0 | Wisconsin |
| 56 | Lydia Schulz | 51 | Head | — | Wisconsin |
| 57 | George Schulz | 17 | Son | — | Wisconsin |
| 60 | Emil Osenbau | 47 | Head | Shipping Dept | Germany |
| 61 | Lily Osenbau | 44 | Wife | Kitchen Work | Germany |
| 62 | Gunther Osenbau | 18 | Son | Return Clerk | Germany |
| 63 | Sigmund Moder | 43 | Brother-in-law | Maintenance | Germany |
| 64 | Hedwig Moder | 44 | Sister-in-law | — | Germany |
| 65 | George Moder | 7 | Nephew | — | Germany |
| 66 | Martha Brennan | 35 | Head | 40 | Ohio |
| 67 | Mary Brennan | 71 | Mother | — | Tennessee |
| 68 | Neil D. Brennan | 42 | Brother | — | Ohio |
| 70 | Thomas G. Cullen | 51 | Head | 44 | Wisconsin |
| 71 | Grace Cullen | 52 | Wife | — | Wisconsin |
| 72 | John J. Cullen | 25 | Son | 44 | Wisconsin |
| 73 | Mary Cullen THIS PERSON | 19 | Daughter | — | Wisconsin |
| 74 | Phillip Cullen | 17 | Son | — | Wisconsin |
| 75 | Robert Cullen | 15 | Son | — | Wisconsin |
| 76 | Margaret Ann Cullen | 14 | Daughter | — | Wisconsin |
| 77 | Walter Kucharski | 66 | Head | — | Germany |
| 78 | Pauline Kucharski | 47 | Wife | — | Germany |
| 79 | Raymond Kucharski | 27 | Son | 40 | Wisconsin |
| 80 | Irene Kucharski | 23 | Daughter | 40 | 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)