MF
Mary Fields — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Haven-County, Connecticut
Our Model Tree links this Mary Fields across the 1920, 1930 and 1940 US Censuses in New-Haven-County, Connecticut (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Haven-County, Connecticut |
| Surname | Fields |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Allingtown |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Allingtown |
| Est. Birth Year | ~1890 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Fields | Daughter | — | 24 | ~1916 |
| Walter Fields | Head | — | 57 | ~1883 |
| Mary Fields | Spouse | — | 50 | ~1890 |
Census Appearances
1920
New Haven, …
Spouse, age 30
New Haven, Connecticut · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fields |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
New Haven, …
Other, age 40
New Haven, Connecticut · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fields |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 17 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
New-Haven-County, Connecticut
Spouse, age 50
New-Haven-County, Connecticut · implied b. ~1890 — 3 household members
| Surname | Fields |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Allingtown |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Fields across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Fields
Spouse · 1940 · age 50 · b. ~1890 · Connecticut
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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 — New-Haven-County, Connecticut
Open full size
1940 US Federal Census — New-Haven-County, Connecticut
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00522-00257)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida J. Johnson | 54 | Wife | — | Sweden |
| 42 | Anna C. Johnson | 16 | Daughter | — | Connecticut |
| 43 | Ernest Johnson | 28 | Lodger | Carpenter | Sweden |
| 44 | Walter Fields | 57 | Head | Locking Foreman | Connecticut |
| 45 | Mary Fields THIS PERSON | 50 | Wife | — | Scotland |
| 46 | Mary M. Fields | 24 | Daughter | Stenographer | Connecticut |
| 47 | Anthony Acabbo | 30 | Head | Laborer | Connecticut |
| 48 | Marion Acabbo | 26 | Wife | — | Connecticut |
| 49 | Ralph Acabbo | 12 | Son | — | Connecticut |
| 50 | Ralph Acabbo | 76 | Father | — | Italy |
| 51 | August Herlinger | 44 | Head | Weaver | Germany |
| 52 | Julia Herlinger | 41 | Wife | Machine Opertr | Germany |
| 53 | Ernst August Herlinger | 19 | Son | — | Germany |
| 54 | Margit Herlinger | 13 | Daughter | — | Germany |
| 55 | Julia Kartheus | 77 | Mother-in-law | — | Germany |
| 56 | Emma Miller | 80 | Head | Laundry | New York |
| 57 | William Francis | 48 | Head | House Cleaner | New York |
| 58 | Ethel Francis | 44 | Wife | — | Connecticut |
| 59 | Rudolph R. Francis | 29 | Son | House Cleaner | Connecticut |
| 60 | Edward Francis | 26 | Son | House Cleaner | Connecticut |
| 61 | Herbert J. Francis | 20 | Son | House Cleaner | Connecticut |
| 62 | Stanley Kurkowski | 50 | Head | Janitor | Poland |
| 63 | Mary Kurkowski | 45 | Wife | Weaver | Poland |
| 64 | Theodore Kurkowski | 21 | Son | — | Connecticut |
| 65 | Michel Cavaliere | 54 | Head | Painter | Italy |
| 66 | Mary Cavaliere | 44 | Wife | — | Italy |
| 67 | Vincent Cavaliere | 19 | Son | Laborer | Connecticut |
| 68 | Rose Cavaliere | 15 | Daughter | — | Connecticut |
| 69 | Thomas Cavaliere | 12 | Son | — | Connecticut |
| 70 | Anna Cavaliere | 6 | Daughter | — | Connecticut |
| 71 | Regina Fritz | 53 | Head | — | Poland |
| 72 | Stanley Fritz | 20 | Son | Truck Driver | Connecticut |
| 73 | Paul Fritz | 17 | Son | — | Connecticut |
| 74 | Peter Savage | 25 | Son-in-law | Auto Mechanic | Connecticut |
| 75 | Catherine Savage | 23 | Daughter | Packer | Connecticut |
| 76 | John Mialow | 48 | Head | Carpenter | Russia |
| 77 | Julia Mialow | 45 | Wife | — | Russia |
| 78 | Nellie Mialow | 18 | Daughter | — | Connecticut |
| 79 | Alec Mialow | 17 | Son | — | Connecticut |
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)