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Mary Waters — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kent-County, Delaware
Our Model Tree links this Mary Waters across the 1930 and 1940 US Censuses in Kent-County, Delaware (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 14-person household.
Age 18
b. ~1922
Female
Daughter
Born: Delaware
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Delaware |
| Surname | Waters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Delaware |
| 1935 Residence (City) | Goldsboro |
| Additional Details | |
| Hours Worked | 7 |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | Frederica Town |
| Est. Birth Year | ~1922 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Effie Waters | Daughter | — | 24 | ~1916 |
| Bessie Waters | Daughter | — | 13 | ~1927 |
| Mary Waters | Daughter | — | 18 | ~1922 |
| Elizabeth Waters | Daughter | — | 25 | ~1915 |
| Viola Waters | Daughter | — | 12 | ~1928 |
| Dorothy Harris | Daughter | — | 4 | ~1936 |
| Anna Harris | Daughter | — | 36 | ~1904 |
| Samuel Waters | Head | — | 60 | ~1880 |
| Mabel White | Other | — | 31 | ~1909 |
| Benjamin Waters | Son | — | 22 | ~1918 |
| Edward Waters | Son | — | 21 | ~1919 |
| Samuel Waters | Son | — | 15 | ~1925 |
| James Harris | Son | — | 2 | ~1938 |
| Elizabeth Waters | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Kent, Delaware
Daughter, age 7
Kent, Delaware · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Waters |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Kent-County, Delaware
Daughter, age 18
Kent-County, Delaware · implied b. ~1922 — 14 household members
| Surname | Waters |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Delaware |
| 1935 Residence (City) | Goldsboro |
| Hours Worked | 7 |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| 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 Waters across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Waters
Daughter · 1940 · age 18 · b. ~1922 · Delaware
★ You are viewing this record
Sibling
Bessie Waters
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Effie Waters
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Waters
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Harris
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Waters
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harris
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Waters
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Benjamin Waters
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Harris
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Waters
Sibling · 1940 · age 15
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 — Kent-County, Delaware
Open full size
1940 US Federal Census — Kent-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00544-00774)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Victor Warren | 41 | Head | Janitor | Delaware |
| 2 | Dorothy R. Warren | 38 | Wife | — | Penn. |
| 3 | Dorothy C. Warren | 7 | Daughter | — | Penn. |
| 4 | George Warren | 5 | Son | — | Penn. |
| 5 | Helena E. Case | 67 | Head | — | Delaware |
| 6 | Bertha Case | 61 | Sister | — | Delaware |
| 7 | Mary H. Maloney | 65 | Attendant | Nurse | Delaware |
| 8 | Herman Drawdy | 40 | Head | Salesman | North Carolina |
| 9 | Hattie Drawdy | 40 | Wife | — | Maryland |
| 10 | Ruth (A.) Drawdy | 20 | Daughter | — | Delaware |
| 11 | John Drawdy | 11 | Son | — | Delaware |
| 12 | John C. Darby | 48 | Head | Assistant | Delaware |
| 13 | Lulu Darby | 47 | Wife | — | Delaware |
| 14 | Herman Vineyard | 57 | Head | Farmer | Delaware |
| 15 | Elizabeth Vineyard | 57 | Wife | — | Delaware |
| 16 | Samuel Waters | 60 | Head | Farm Laborer | Delaware |
| 17 | Elizabeth Waters | 56 | Wife | — | Delaware |
| 18 | Elizabeth Waters | 25 | Daughter | — | Delaware |
| 19 | Effie Waters | 24 | Daughter | — | Delaware |
| 20 | Benjamin Waters | 22 | Son | Farm Laborer | Delaware |
| 21 | Edward Waters | 21 | Son | Farm Laborer | Delaware |
| 22 | Mary Waters THIS PERSON | 18 | Daughter | — | Delaware |
| 23 | Samuel Waters | 15 | Son | Farm Laborer | Delaware |
| 24 | Bessie Waters | 13 | Daughter | — | Maryland |
| 25 | Viola Waters | 12 | Daughter | — | Maryland |
| 26 | Anna Harris | 36 | Daughter | — | Delaware |
| 27 | Dorothy Harris | 4 | Daughter | — | Maryland |
| 28 | James Harris | 2 | Son | — | Maryland |
| 29 | Mabel White | 31 | Niece | Servant | Maryland |
| 30 | Anna B. Harrington | 71 | Head | Teacher | Delaware |
| 31 | Benson P. Harrington | 45 | Son | Bookkeeper | Delaware |
| 32 | Ida V. Moody | 64 | Head | — | Delaware |
| 33 | Charles Hochlingers | 30 | Head | Proprietor | Delaware |
| 34 | Marie Hochlingers | 27 | Wife | Teacher | Maryland |
| 35 | Willard Lopp | 60 | Head | — | Delaware |
| 36 | Margaret Lopp | 58 | Wife | — | Delaware |
| 37 | James S. Calloway | 45 | Head | Mechanic | Delaware |
| 38 | Catherine Calloway | 45 | Wife | — | Maryland |
| 39 | Marie Calloway | 11 | Daughter | — | Delaware |
| 40 | William Calloway | 6 | Son | — | Delaware |
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)