MG
Mary Gill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hampden-County, Massachusetts
Our Model Tree links this Mary Gill across the 1930 and 1940 US Censuses in Hampden-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 7-person household.
Age 45
b. ~1895
Female
Head
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hampden-County, Massachusetts |
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Chicopee |
| 1935 Residence (County) | Hampden |
| Naturalization Status | Alien |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Township / Ward | Chicopee |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Elizabeth Gill | Daughter | — | 12 | ~1928 |
| Fred Gill | Son | — | 22 | ~1918 |
| Jennie Gill | Daughter | — | 8 | ~1932 |
| Evelyn Gill | Daughter | — | 14 | ~1926 |
| Alphonse Gill | Son | — | 15 | ~1925 |
| Mary Gill | Head | — | 45 | ~1895 |
| August Gill | Son | — | 17 | ~1923 |
Census Appearances
1930
Hampden, Massachusetts
Other, age 34
Hampden, Massachusetts · implied b. ~1896 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Poland |
| Naturalization Status | Alien |
| Year of Immigration | 1911 |
| Age at First Marriage | 24 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Polish |
| Veteran | Yes |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Hampden-County, Massachusetts
Head, age 45
Hampden-County, Massachusetts · implied b. ~1895 — 7 household members
| Surname | Gill |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Chicopee |
| 1935 Residence (County) | Hampden |
| Naturalization Status | Alien |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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
Head · 1940 · age 45 · b. ~1895 · Massachusetts
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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 — Hampden-County, Massachusetts
Open full size
1940 US Federal Census — Hampden-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01593-00729)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Benjamin Bemis | 45 | Head | Oil Salesman | Massachusetts |
| 42 | Jessie Bemis | 44 | Wife | — | Massachusetts |
| 43 | Janet Bemis | 14 | Daughter | — | Massachusetts |
| 44 | Jessie Bemis | 13 | Daughter | — | Massachusetts |
| 45 | William Cowan | 74 | Father-in-law | — | Scotland |
| 46 | Mary Gill THIS PERSON | 45 | Head | — | Poland |
| 47 | Fred Gill | 22 | Son | Trimmer | Massachusetts |
| 48 | August Gill | 17 | Son | Laborer | Massachusetts |
| 49 | Alphonse Gill | 15 | Son | — | Massachusetts |
| 50 | Evelyn Gill | 14 | Daughter | — | Massachusetts |
| 51 | Elizabeth Gill | 12 | Daughter | — | Massachusetts |
| 52 | Jennie Gill | 8 | Daughter | — | Massachusetts |
| 53 | Edward Giall | 25 | Head | Tire Maker | Massachusetts |
| 54 | Wanda Giall | 22 | Wife | — | Massachusetts |
| 55 | Edward Giall | 1 | Son | — | Massachusetts |
| 56 | Ozias Marcil | 54 | Head | Plumber | Canada-French |
| 57 | Earnest Marcil | 24 | Son | Meas Cutter | Massachusetts |
| 58 | Alfred Marcil | 22 | Son | Tinsmith Apprentice | Massachusetts |
| 59 | Hector Marcil | 19 | Son | Tinsmith Apprentice | Massachusetts |
| 60 | Marie Ange Carrier | 25 | Maid | Maid | Canada-French |
| 61 | Frank Kolazenski | 60 | Head | Metal Polisher | Poland |
| 62 | Sally Kolazenski | 62 | Wife | — | Poland |
| 63 | John Kolazenski | 33 | Son | Driller | Massachusetts |
| 64 | Stanley Kolazenski | 30 | Son | — | Massachusetts |
| 65 | Francis Kolazenski | 27 | Son | Machine Operator | Massachusetts |
| 66 | Alice Kolazenski | 25 | Daughter | Telephone Operator | Massachusetts |
| 67 | Victor Nowak | 59 | Head | Laborer | Poland |
| 68 | Antonella Nowak | 61 | Wife | — | Poland |
| 69 | Adam Nowak | 35 | Son | Insurance Agent | Massachusetts |
| 70 | Mary Serwatka | 34 | Daughter | — | Massachusetts |
| 71 | Theodore Serwatka | 34 | Son-in-law | Pressman | Massachusetts |
| 72 | Nancy Serwatka | 10 | Grand-daughter | — | Massachusetts |
| 73 | Irene Serwatka | 2 | Grand-daughter | — | Massachusetts |
| 74 | Andrew Ferdinand | 61 | Head | — | Vermont |
| 75 | Hermina Ferdinand | 47 | Wife | Repair Woman | Massachusetts |
| 76 | David Guimette | 54 | Head | Cornice Maker Manager | Massachusetts |
| 77 | Edna Guimette | 55 | Wife | — | Massachusetts |
| 78 | Robert Guimette | 13 | Son | — | Massachusetts |
| 79 | Alice Guimette | 11 | Daughter | — | Massachusetts |
| 80 | Clarence Lepar | 47 | Head | Lineman | Vermont |
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)