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John Chase — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fairfield-County, Connecticut
Our Model Tree links this John Chase across the 1930 and 1940 US Censuses in Fairfield-County, Connecticut (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 7-person household.
Age 63
b. ~1877
Male
Head
Born: Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfield-County, Connecticut |
| Surname | Chase |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Darien |
| 1935 Residence (County) | Fairfield |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Fuel company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | No |
| 1935 Residence | Connecticut |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | Laborer |
| Township / Ward | Noroton Heights |
| Est. Birth Year | ~1877 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Anna Chase | Son | — | 3 | ~1937 |
| Mary Chase | Daughter | — | 29 | ~1911 |
| William Chase | Son | — | 17 | ~1923 |
| John Chase | Head | — | 63 | ~1877 |
| Paul Chase | Son | — | 13 | ~1927 |
| Joseph Chase | Son | — | 21 | ~1919 |
| Elizabeth Chase | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Fairfield, Connecticut
Head, age 53
Fairfield, Connecticut · implied b. ~1877 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1891 |
| Age at First Marriage | 33 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Laborer |
| Industry | Coal yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Magyar |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Fairfield-County, Connecticut
Head, age 63
Fairfield-County, Connecticut · implied b. ~1877 — 7 household members
| Surname | Chase |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Darien |
| 1935 Residence (County) | Fairfield |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Fuel company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | No |
| 1935 Residence | Connecticut |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 John Chase across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Chase
Head · 1940 · age 63 · b. ~1877 · 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 — Fairfield-County, Connecticut
Open full size
1940 US Federal Census — Fairfield-County, Connecticut
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00494-01006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Montlick | 28 | Head | Letter Carrier | Connecticut |
| 2 | Geraldine A. Montlick | 24 | Wife | — | Connecticut |
| 3 | Patricia Montlick | 3 | Daughter | — | Connecticut |
| 4 | Walter H. Wagner | 49 | Head | Yardman | New York |
| 5 | Julia F. Wagner | 51 | Wife | — | Connecticut |
| 6 | Walter E. Wagner | 10 | Son | — | Connecticut |
| 7 | George H. Waterbury | 83 | Head | — | Connecticut |
| 8 | Robert H. Waterbury | 57 | Son | — | Connecticut |
| 9 | Frederick J. Schwab | 64 | Head | Machinist | Germany |
| 10 | Eva S. Schwab | 58 | Wife | — | Connecticut |
| 11 | John P. Mason | 52 | Head | Gardener | Poland |
| 12 | Josephine Mason | 54 | Wife | — | Poland |
| 13 | Mary A. Mason | 30 | Daughter | Over-Layer | Connecticut |
| 14 | Anna B. Mason | 26 | Daughter | Inspector | Connecticut |
| 15 | Sophie L. Mason | 25 | Daughter | — | Connecticut |
| 16 | Rose M. Mason | 24 | Daughter | Waitress | Connecticut |
| 17 | Frank Mason | 21 | Son | — | Connecticut |
| 18 | Vincent W. Mason | 18 | Son | — | Connecticut |
| 19 | George M. Mason | 14 | Son | — | Connecticut |
| 20 | Helen Selleck | 78 | Head | — | Connecticut |
| 21 | Percy M. Scofield | 50 | Son-in-law | — | Connecticut |
| 22 | Fred M. Scofield | 29 | Grandson | Laborer | Connecticut |
| 23 | John J. Chase THIS PERSON | 63 | Head | Laborer | Hungary |
| 24 | Elizabeth Chase | 52 | Wife | — | Hungary |
| 25 | Mary Chase | 29 | Daughter | Typist | Connecticut |
| 26 | Joseph Chase | 21 | Son | Truck Driver | Connecticut |
| 27 | William Chase | 17 | Son | — | Connecticut |
| 28 | Paul Chase | 13 | Son | — | Connecticut |
| 29 | Anna Chase | 3 | Son | — | Connecticut |
| 30 | Antony Graboski | 55 | Head | Coal Carrier | Poland |
| 31 | Agnes H. Graboski | 51 | Wife | — | Poland |
| 32 | Mary Graboski | 25 | Daughter | Teacher | New York |
| 33 | Sadie Graboski | 24 | Daughter | Nurse | New York |
| 34 | Ruth C. Graboski | 14 | Daughter | — | Connecticut |
| 35 | John R. Hutton | 68 | Head | — | Connecticut |
| 36 | Cora C. Hutton | 53 | Wife | — | Connecticut |
| 37 | Joseph R. Hutton | 29 | Son | Handyman | Connecticut |
| 38 | John E. Hutton | 28 | Son | Laborer | Connecticut |
| 39 | Donald R. Hutton | 26 | Son | Welder | Connecticut |
| 40 | Thomas H. Conley | 81 | Boarder | — | 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)