MH
Mary Hopkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Mary Hopkins across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 4-person household.
Age 46
b. ~1894
Female
Spouse
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Hopkins |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | CHESTER CITY |
| 1935 Residence (County) | DELAWARE |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Chester City |
| Est. Birth Year | ~1894 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Leslie Hopkins | Head | — | 51 | ~1889 |
| Rosalie Hopkins | Other | — | 33 | ~1907 |
| Frederick Hopkins | Son | — | 29 | ~1911 |
| Mary Hopkins | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Delaware, Pennsylvania
Spouse, age 27
Delaware, Pennsylvania · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Delaware, Pennsylvania
Spouse, age 38
Delaware, Pennsylvania · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 26 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Delaware-County, Pennsylvania
Spouse, age 46
Delaware-County, Pennsylvania · implied b. ~1894 — 4 household members
| Surname | Hopkins |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | CHESTER CITY |
| 1935 Residence (County) | DELAWARE |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Mary Hopkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hopkins
Spouse · 1940 · age 46 · b. ~1894 · 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-t0627-03489-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris Ware | 8 | Daughter | — | Penna |
| 2 | Salestine Ware | 6 | Daughter | — | Penna |
| 3 | Jean Ware | 3 | Daughter | — | Penna |
| 4 | Otis Ware | 2 | Son | — | Penna |
| 5 | Douglas Wood | 39 | Head | Laborer | Virginia |
| 6 | Lula Wood | 37 | Wife | — | Virginia |
| 7 | Bessie Wood | 19 | Daughter | — | Virginia |
| 8 | Alberta Wood | 16 | Daughter | Housework | Virginia |
| 9 | Lewis Wood | 10 | Son | — | Penna |
| 10 | Anna Quann | 52 | Head | — | Virginia |
| 11 | John Quann | 50 | Brother | Laborer | Virginia |
| 12 | William Taylor | 43 | Lodger | Laborer | Maryland |
| 13 | Lillian Watkins | 38 | Head | Janitress | Delaware |
| 14 | Thelma Davis | 22 | Daughter | Waitress | Penna |
| 15 | Beula Patterson | 35 | Sister | Waitress | Penna |
| 16 | Bernell Crumity | 23 | Son-in-law | Laborer | Georgia |
| 17 | Bernice Crumity | 20 | Daughter | — | Penna |
| 18 | Charles James | 34 | Head | Laborer | Penna |
| 19 | Alice James | 32 | Wife | Housework | Penna |
| 20 | Alex Davis | 46 | Head | Laborer | Penna |
| 21 | Arcosta Davis | 32 | Wife | Own Business | Maryland |
| 22 | Lamoolia Fletcher | 42 | Sister | — | Penna |
| 23 | Watts Singleton | 22 | Nephew | Watchman | Penna |
| 24 | Leonia Singleton | 21 | Niece | — | Penna |
| 25 | Gloria Singleton | 2 | Niece | — | Penna |
| 26 | Oliver Jr Fletcher | 15 | Nephew | — | Penna |
| 27 | Oliver Sr Fletcher | 49 | Brother-in-law | Laborer | Maryland |
| 28 | Leslie Hopkins | 51 | Head | Laborer | Virginia |
| 29 | Mary Hopkins THIS PERSON | 46 | Wife | — | Delaware |
| 30 | Frederick Hopkins | 29 | Son | Truck Driver | Penna |
| 31 | Rosalie Hopkins | 33 | Daughter-in-law | — | Maryland |
| 32 | Wilmer Henson | 42 | Head | Laborer | Maryland |
| 33 | Victoria Henson | 34 | Wife | — | Maryland |
| 34 | James Henson | 17 | Son | — | Maryland |
| 35 | Clifford Henson | 14 | Son | — | Penna |
| 36 | Thelma Henson | 12 | Daughter | — | Penna |
| 37 | Thomas Cremins | 55 | Lodger | Laborer | Florida |
| 38 | Raymond Taylor | 34 | Head | Laborer | Virginia |
| 39 | Mattie Taylor | 29 | Wife | Housework | Georgia |
| 40 | Matthew Taylor | 9 | Son | — | Penna |
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)