EC
Ethel Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Ethel Cook across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Cook |
| Given Name | Ethel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (County) | DELAWARE |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Essington |
| Est. Birth Year | ~1888 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ethel | Age | Birth yr |
|---|---|---|---|---|
| James Kupris | Other | — | 32 | ~1908 |
| Harry Cook | Head | — | 56 | ~1884 |
| Ethel Cook | Spouse | — | 52 | ~1888 |
| Lorraine Mattson | Daughter | — | 33 | ~1907 |
Census Appearances
1920
Salem, New …
Spouse, age 32
Salem, New Jersey · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Eliza |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Salem, New …
Spouse, age 42
Salem, New Jersey · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Ethel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 17 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Delaware-County, Pennsylvania
Spouse, age 52
Delaware-County, Pennsylvania · implied b. ~1888 — 4 household members
| Surname | Cook |
| Given Name | Ethel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (County) | DELAWARE |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Ethel Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ethel Cook
Spouse · 1940 · age 52 · b. ~1888 · Pennsylvania
★ 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03496-00534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Delores Jones | 2 | Daughter | — | Pennsylvania |
| 42 | Harry Cook | 56 | Head | 38 | Delaware |
| 43 | Ethel Cook THIS PERSON | 52 | Wife | — | Delaware |
| 44 | Lorraine Mattson | 33 | Daughter | — | Delaware |
| 45 | James Kupris | 32 | Lodger | 80 | Pennsylvania |
| 46 | Elwood Clarke | 47 | Head | 40 | Pennsylvania |
| 47 | Amma Clarke | 47 | Wife | — | Pennsylvania |
| 48 | William Clarke | 20 | Son | 40 | Pennsylvania |
| 49 | Jules Fores | 49 | Lodger | 35 | Pennsylvania |
| 50 | Llewellyn Demimore | 40 | Head | 38 | New York |
| 51 | Janet Demimore | 33 | Wife | — | Pennsylvania |
| 52 | Charles Demimore | 12 | Son | — | Pennsylvania |
| 53 | John Demimore | 10 | Son | — | Pennsylvania |
| 54 | Amma Armstrong | 66 | Head | — | Norway |
| 55 | John Robert | 26 | Head | 38 | Pennsylvania |
| 56 | Hilda Robert | 23 | Wife | — | Pennsylvania |
| 57 | Wilson Eilbeck | 31 | Head | 40 | England |
| 58 | Jane Eilbeck | 33 | Wife | 36 | England |
| 59 | Marjorie Eilbeck | 11 | Daughter | — | England |
| 60 | Robert Eilbeck | 6 | Son | — | Pennsylvania |
| 61 | Caroline Stipa | 46 | Head | 40 | Pennsylvania |
| 62 | Alfred Stipa | 25 | Son | 40 | Pennsylvania |
| 63 | Caroline Stipa | 20 | Daughter | 12 | Pennsylvania |
| 64 | Phyllis Stipa | 16 | Daughter | — | Pennsylvania |
| 65 | Eva Scammy | 34 | Niece | 40 | Pennsylvania |
| 66 | Penrose Collins | 57 | Head | 40 | Pennsylvania |
| 67 | Richard Geevert | 24 | Lodger | — | Sweden |
| 68 | George Brown | 34 | Head | 60 | West Indies |
| 69 | Cecelia Brown | 34 | Wife | — | Pennsylvania |
| 70 | John Brown | 25 | Son | 25 | Pennsylvania |
| 71 | Jenice Brown | 21 | Son | 40 | Pennsylvania |
| 72 | George Jr. Brown | 14 | Son | — | Pennsylvania |
| 73 | Elmer Fagan | 27 | Head | 40 | Pennsylvania |
| 74 | Mildred Fagan | 23 | Wife | 50 | Pennsylvania |
| 75 | Herbert Eilbeck | 53 | Head | 35 | England |
| 76 | Mabel Eilbeck | 52 | Wife | — | Pennsylvania |
| 77 | Joseph Cristinzio | 52 | Head | 42 | Italy |
| 78 | Maria Cristinzio | 50 | Wife | — | Italy |
| 79 | Angela Cristinzio | 19 | Son | 40 | Italy |
| 80 | Carmella Cristinzio | 17 | Daughter | 35 | Italy |
Related Census Records
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)