EC
Eugene Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Connecticut
Our Model Tree links this Eugene Clark across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Connecticut (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 5-person household.
Age 50
b. ~1890
Male
Head
Born: Vermont
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Connecticut |
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Middletown City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Salesman |
| Industry | Electric Prod. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 286 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
| Occupation | Salesman |
| Township / Ward | Middletown City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Eugene Clark | Head | — | 50 | ~1890 |
| Mildred Clark | Spouse | — | 42 | ~1898 |
| Dorothy Clark | Daughter | — | 19 | ~1921 |
| Marjorie Clark | Daughter | — | 15 | ~1925 |
| Jeanne Clark | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Middlesex, Connecticut
Head, age 30
Middlesex, Connecticut · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Vermont |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Connecticut |
| Occupation | Teacher |
| Industry | University |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1930
Middlesex, Connecticut
Head, age 40
Middlesex, Connecticut · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Eugene S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Vermont |
| Age at First Marriage | 25 |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Vermont |
| Occupation | Salesman |
| Industry | Staples |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
1940
Middlesex-County, Connecticut
Head, age 50
Middlesex-County, Connecticut · implied b. ~1890 — 5 household members
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Vermont |
| 1935 Residence (City) | Middletown City |
| 1935 Residence (County) | Middlesex |
| Occupation | Salesman |
| Industry | Electric Prod. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 286 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Vermont |
| Birth Country | United States |
| Birthplace (normalized) | vermont |
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 Eugene Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Eugene Clark
Head · 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 — Middlesex-County, Connecticut
Open full size
1940 US Federal Census — Middlesex-County, Connecticut
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00512-00673)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Conroy | 22 | Son | Laborer | Connecticut |
| 2 | Joseph Conroy | 20 | Son | Laborer | Connecticut |
| 3 | Raymond Conroy | 16 | Son | — | Connecticut |
| 4 | Daniel J. Doolan | 42 | Head | Truck Driver | Connecticut |
| 5 | Delia Doolan | 38 | Wife | — | Connecticut |
| 6 | Josephine Doolan | 9 | Daughter | — | Connecticut |
| 7 | Robert Doolan | 6 | Son | — | Connecticut |
| 8 | Ann Marie Doolan | 4 | Daughter | — | Connecticut |
| 9 | Willie Labella | 36 | Head | Laborer | Connecticut |
| 10 | Aniza Labella | 39 | Wife | Housework | Connecticut |
| 11 | William Labella | 12 | Son | — | Connecticut |
| 12 | Frederick Labella | 9 | Son | — | Connecticut |
| 13 | Daniel A. Nolan | 67 | Head | — | Connecticut |
| 14 | Alice Nolan | 60 | Wife | — | Connecticut |
| 15 | Eugene Clark THIS PERSON | 50 | Head | Salesman | Vermont |
| 16 | Mildred Clark | 42 | Wife | — | Connecticut |
| 17 | Jeanne Clark | 23 | Daughter | Clerk | Connecticut |
| 18 | Dorothy L. Clark | 19 | Daughter | Clerk | Connecticut |
| 19 | Marjorie Clark | 15 | Daughter | — | Connecticut |
| 20 | Pancrazio Santostefano | 51 | Head | Milling Dept | Italy |
| 21 | Mary Santostefano | 50 | Wife | Dressmaker | Italy |
| 22 | Constantino Del Mastro | 48 | Step-son | Dress Maker | Italy |
| 23 | Frank Del Mastro | 27 | Step-son | — | Connecticut |
| 24 | Lucy Pinchera | 42 | Boarder | Dressmaker | Italy |
| 25 | Salvatore Pinchera | 18 | Nephew | — | Connecticut |
| 26 | Leslie Ellis | 55 | Head | Toolmaker | Massachusetts |
| 27 | Louisa C. Ellis | 53 | Wife | — | Connecticut |
| 28 | Daisy M. Crawford | 63 | Head | — | Connecticut |
| 29 | Michael J. Fitzpatrick | 72 | Head | Bottling Works | Irish Free State |
| 30 | Ellen W. Fitzpatrick | 62 | Wife | — | Connecticut |
| 31 | Marion F. Fitzpatrick | 30 | Daughter | Secretary | Connecticut |
| 32 | Margaret Fitzpatrick | 23 | Daughter | Salesgirl | Connecticut |
| 33 | Catherine Walsh | 65 | Sister-in-law | — | Connecticut |
| 34 | Bridget E. Tuttle | 62 | Head | — | Irish Free State |
| 35 | Clarence Tuttle | 31 | Son | Truck Driver | Connecticut |
| 36 | Wallace Tuttle | 22 | Son | Laborer | Connecticut |
| 37 | Frank E. Frazon | 43 | Head | Salesman | Connecticut |
| 38 | Anna D. Frazon | 37 | Wife | — | Italy |
| 39 | Donald Frazon | 8 | 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)