MG
Mary Gill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this Mary Gill across the 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 7-person household.
Age 39
b. ~1901
Female
Spouse
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Wisconsin |
| 1935 Residence (County) | Milwaukee |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Milwaukee |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Milwaukee |
| Est. Birth Year | ~1901 |
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 |
|---|---|---|---|---|
| John Gill | Son | — | 17 | ~1923 |
| Alice Gill | Daughter | — | 8 | ~1932 |
| Mary Gill | Spouse | — | 39 | ~1901 |
| Frank Gill | Head | — | 40 | ~1900 |
| Helen Gill | Daughter | — | 12 | ~1928 |
| Harry Gill | Son | — | 15 | ~1925 |
| Margaret Gill | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Milwaukee, Wisconsin
Other, age 30
Milwaukee, Wisconsin · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Daughter-in-law |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 22 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Knitter |
| Industry | Hosiery Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Milwaukee-County, Wisconsin
Spouse, age 39
Milwaukee-County, Wisconsin · implied b. ~1901 — 7 household members
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Wisconsin |
| 1935 Residence (County) | Milwaukee |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Milwaukee |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Gill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gill
Spouse · 1940 · age 39 · b. ~1901 · Wisconsin
★ You are viewing this record
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-t0627-04548-00499)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chester Hilber | 20 | Son | New Worker | Wisconsin |
| 42 | Lawrence Hilber | 41 | Head | Labor | Germany |
| 43 | Myrtle Hilber | 43 | Wife | — | Wisconsin |
| 44 | Norman Hilber | 18 | Son | — | Wisconsin |
| 45 | Lawrence Jr. Hilber | 16 | Son | — | Wisconsin |
| 46 | Lorraine Hilber | 14 | Daughter | — | Wisconsin |
| 47 | Robert Hilber | 12 | Son | — | Wisconsin |
| 48 | Josephine Markiewicz | 56 | Head | — | Poland |
| 49 | Theodore Markiewicz | 33 | Son | Labor | Wisconsin |
| 50 | Bernard Markiewicz | 23 | Son | New Worker | Wisconsin |
| 51 | Eugene Kowalski | 23 | Son-in-law | Messenger | Wisconsin |
| 52 | Mary Kowalski | 18 | Daughter | — | Wisconsin |
| 53 | John P. Waldera | 77 | Head | — | Poland |
| 54 | Edward Witon | 45 | Boarder | Labor | Wisconsin |
| 55 | Edward Lewandowski | 39 | Head | Painter | Wisconsin |
| 56 | Bridget Lewandowski | 38 | Wife | — | Wisconsin |
| 57 | Lorraine Lewandowski | 17 | Daughter | — | Wisconsin |
| 58 | Richard Lewandowski | 16 | Son | — | Wisconsin |
| 59 | Robert Lewandowski | 4 | Son | — | Wisconsin |
| 60 | Frank Gill | 40 | Head | Own Business | Poland |
| 61 | Mary Gill THIS PERSON | 39 | Wife | — | Poland |
| 62 | John Gill | 17 | Son | — | Wisconsin |
| 63 | Harry Gill | 15 | Son | — | Wisconsin |
| 64 | Helen Gill | 12 | Daughter | — | Wisconsin |
| 65 | Alice Gill | 8 | Daughter | — | Wisconsin |
| 66 | Margaret Gill | 3 | Daughter | — | Wisconsin |
| 67 | Joseph Witt | 36 | Head | — | Germany |
| 68 | Hortence Witt | 5 | Daughter | — | Wisconsin |
| 69 | Henry Fehring | 42 | Head | Accountant | Wisconsin |
| 70 | Aurelia Fehring | 37 | Wife | — | Wisconsin |
| 71 | Mary Aurelia Fehring | 7 | Daughter | — | Wisconsin |
| 72 | Roman Urban | 49 | Head | Ins. Agent | Wisconsin |
| 73 | Helen Urban | 47 | Wife | — | Wisconsin |
| 74 | Casimir Urban | 24 | Son | Clerk | Wisconsin |
| 75 | Raymond Urban | 22 | Son | Assembling | Wisconsin |
| 76 | Rose Urban | 20 | Daughter | Clerk | Wisconsin |
| 77 | Ervin Urban | 17 | Son | — | Wisconsin |
| 78 | Ruth Urban | 16 | Daughter | — | Wisconsin |
| 79 | Daniel Urban | 10 | Son | — | Wisconsin |
| 80 | John Urban | 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)