EC
Elizabeth Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegany-County, Maryland
Our Model Tree links this Elizabeth Cooper across the 1930 and 1940 US Censuses in Allegany-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegany-County, Maryland |
| Surname | Cooper |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cumberland City |
| 1935 Residence (County) | Allegany |
| Additional Details | |
| Occupation | Clerk |
| Industry | NYA Office |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 266 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Cumberland City |
| Est. Birth Year | ~1919 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Elizabeth | Age | Birth yr |
|---|---|---|---|---|
| Andrew Cooper | Son | — | 37 | ~1903 |
| Catherine Cooper | Daughter | — | 29 | ~1911 |
| Elizabeth Cooper | Daughter | — | 21 | ~1919 |
| Julie Cooper | Daughter | — | 41 | ~1899 |
| Nancy Hilton | Daughter | — | 25 | ~1915 |
| Luanna Cooper | Spouse | — | 64 | ~1876 |
| Harold Hilton | Other | — | 2 | ~1938 |
| Harold Hilton | Other | — | 32 | ~1908 |
| Robert Cooper | Son | — | 27 | ~1913 |
| William Cooper | Head | — | 64 | ~1876 |
| Mattie Cooper | Daughter | — | 43 | ~1897 |
Census Appearances
1930
Allegany, Maryland
Daughter, age 12
Allegany, Maryland · implied b. ~1918 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Allegany-County, Maryland
Daughter, age 21
Allegany-County, Maryland · implied b. ~1919 — 11 household members
| Surname | Cooper |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cumberland City |
| 1935 Residence (County) | Allegany |
| Occupation | Clerk |
| Industry | NYA Office |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 266 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Elizabeth Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Elizabeth Cooper
Daughter · 1940 · age 21 · b. ~1919 · Maryland
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Sibling
Julie Cooper
Sibling · 1940 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cooper
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Cooper
Sibling · 1940 · age 43
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Hilton
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Cooper
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Andrew Cooper
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegany-County, Maryland
Open full size
1940 US Federal Census — Allegany-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01498-00202)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard, H Gilmore | 38 | Head | Bellman | West Virginia |
| 2 | Helen, R Gilmore | 35 | Wife | — | Maryland |
| 3 | Helen R Gilmore | 16 | Daughter | — | Maryland |
| 4 | Richard Gilmore | 14 | Son | — | Maryland |
| 5 | Betty L. Gilmore | 12 | Daughter | — | Maryland |
| 6 | Lois A Gilmore | 10 | Daughter | — | Maryland |
| 7 | William H Gilmore | 9 | Son | — | Maryland |
| 8 | Edward E Gates | 35 | Head | Janitor | Maryland |
| 9 | Genevieve M Gates | 25 | Wife | Servant | West Virginia |
| 10 | Dolores A Gates | 7 | Daughter | — | Maryland |
| 11 | Hallie Washington | 32 | Lodger | Servant | Virginia |
| 12 | Genevieve Jones | 32 | Lodger | Servant | West Virginia |
| 13 | Edward, H. Gates | 61 | Head | Janitor | Maryland |
| 14 | Helen G Gates | 55 | Wife | — | West Virginia |
| 15 | Elmore Gates | 32 | Son | Head Bellman | West Virginia |
| 16 | Fred Gates | 30 | Son | Janitor | West Virginia |
| 17 | Robert Gates | 25 | Son | Car Washer | West Virginia |
| 18 | Heinie Gates | 22 | Son | Janitor | Maryland |
| 19 | Edward Gates | 82 | Father | — | Maryland |
| 20 | Harry P Redman | 45 | Son in law | Car Washer | West Virginia |
| 21 | William N Cooper | 64 | Head | Janitor | West Virginia |
| 22 | Luanna Cooper | 64 | Wife | — | West Virginia |
| 23 | Mattie Cooper | 43 | Daughter | Servant | West Virginia |
| 24 | Julie Cooper | 41 | Daughter | Servant | Maryland |
| 25 | Andrew Cooper | 37 | Son | Laborer | Maryland |
| 26 | Catherine Cooper | 29 | Daughter | Servant | Maryland |
| 27 | Robert Cooper | 27 | Son | Laborer | Maryland |
| 28 | Elizabeth Cooper THIS PERSON | 21 | Daughter | Clerk | Maryland |
| 29 | Harold Hilton | 32 | Son in law | Window Washer | West Virginia |
| 30 | Nancy Hilton | 25 | Daughter | — | Maryland |
| 31 | Harold Jr Hilton | 2 | Grand Son | — | Maryland |
| 32 | Henry Payne | 69 | Head | Janitor | Maryland |
| 33 | Carrie Payne | 58 | Wife | — | Pennsylvania |
| 34 | Mattie Hart | 35 | Lodger | Teacher | West Virginia |
| 35 | David Gates | 75 | Head | — | Maryland |
| 36 | Goldie Gates | 55 | Wife | — | Maryland |
| 37 | Samuel J. Newnam | 60 | Head | Laborer | West Virginia |
| 38 | Margaret A. Newnam | 57 | Wife | — | Maryland |
| 39 | Rosalie T Newnam | 33 | Daughter | — | West Virginia |
| 40 | Frank S Newnam | 31 | Son | Jet Driller | Maryland |
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)