MC
Marie Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Marie Clark across the 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 8-person household.
Age 13
b. ~1927
Female
Daughter
Born: VIRGINIA
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | CLARK |
| Given Name | MARIE |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | VIRGINIA |
| 1935 Residence (City) | Linwood |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Linwood |
| Est. Birth Year | ~1927 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Alice Clark | Daughter | — | 11 | ~1929 |
| Mckinney Clark | Son | — | 19 | ~1921 |
| Jane Clark | Daughter | — | 2 | ~1938 |
| Flossie Clark | Spouse | — | 41 | ~1899 |
| Edward Clark | Son | — | 16 | ~1924 |
| Evelyn Clark | Daughter | — | 9 | ~1931 |
| Othie Clark | Son | — | 18 | ~1922 |
| Marie Clark | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Delaware, Pennsylvania
Daughter, age 4
Delaware, Pennsylvania · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Delaware-County, Pennsylvania
Daughter, age 13
Delaware-County, Pennsylvania · implied b. ~1927 — 8 household members
| Surname | CLARK |
| Given Name | MARIE |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | VIRGINIA |
| 1935 Residence (City) | Linwood |
| 1935 Residence (County) | Delaware |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Marie Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Clark
Daughter · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Othie Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mckinney Clark
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Clark
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Clark
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Clark
Sibling · 1940 · age 9
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 — 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-t0627-03495-00527)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Flossie Clark | 41 | WIFE | — | VIRGINIA |
| 42 | Mckinney Clark | 19 | SON | — | VIRGINIA |
| 43 | Othie Clark | 18 | SON | — | VIRGINIA |
| 44 | Edward Clark | 16 | SON | — | VIRGINIA |
| 45 | Marie Clark THIS PERSON | 13 | DAUGHTER | — | VIRGINIA |
| 46 | Alice Clark | 11 | DAUGHTER | — | VIRGINIA |
| 47 | Evelyn Clark | 9 | DAUGHTER | — | VIRGINIA |
| 48 | Jane Clark | 2 | DAUGHTER | — | VIRGINIA |
| 49 | James Coleman | 54 | HEAD | Laborer Foreman | VIRGINIA |
| 50 | Abbie Lee Coleman | 46 | WIFE | Housekeeper | VIRGINIA |
| 51 | Mattie Belle Coleman | 26 | DAUGHTER | Housework | VIRGINIA |
| 52 | Irene Coleman | 22 | DAUGHTER | Housekeeper | VIRGINIA |
| 53 | Samuel Dale | 46 | HEAD | Washer Garage | MARYLAND |
| 54 | Mildred Dale | 48 | WIFE | — | MARYLAND |
| 55 | Wilbur Dale | 19 | SON | New Worker | MARYLAND |
| 56 | Gilbert Dale | 17 | SON | Helper | PENNSYLVANIA |
| 57 | Catherine Dale | 13 | DAUGHTER | — | PENNSYLVANIA |
| 58 | William Washington | 45 | HEAD | Elevator Operator | ILLINOIS |
| 59 | Ida Washington | 42 | WIFE | Housework | ILLINOIS |
| 60 | Oralee Washington | 17 | DAUGHTER | — | ILLINOIS |
| 61 | William H Robertson | 28 | HEAD | Laborer | VIRGINIA |
| 62 | Lurethia Robertson | 27 | WIFE | — | NORTH CAROLINA |
| 63 | John Henry Robertson | 5 | SON | — | PENNSYLVANIA |
| 64 | Robert Robertson | 55 | FATHER | — | VIRGINIA |
| 65 | Elizabeth Robertson | 34 | SISTER | — | VIRGINIA |
| 66 | Katie Robertson | 8 | NIECE | — | PENNSYLVANIA |
| 67 | Jacob Ostrowski | 48 | HEAD | — | POLAND |
| 68 | Josephine Ostrowski | 45 | WIFE | — | POLAND |
| 69 | Lillian Ostrowski | 21 | DAUGHTER | Housework | PENNSYLVANIA |
| 70 | Mary Ostrowski | 17 | DAUGHTER | — | PENNSYLVANIA |
| 71 | Junius Dickerson | 44 | HEAD | Kitchen Man | VIRGINIA |
| 72 | Hannah Dickerson | 42 | WIFE | Housework | VIRGINIA |
| 73 | William Dickerson | 20 | SON | — | VIRGINIA |
| 74 | Julia Dickerson | 18 | DAUGHTER | — | VIRGINIA |
| 75 | Joseph Dickerson | 15 | SON | — | VIRGINIA |
| 76 | Ben Dickerson | 13 | SON | — | VIRGINIA |
| 77 | Eva Dickerson | 11 | DAUGHTER | — | VIRGINIA |
| 78 | Christina Dickerson | 9 | DAUGHTER | — | PENNSYLVANIA |
| 79 | Lawerance Dickerson | 7 | SON | — | PENNSYLVANIA |
| 80 | Joan Womack | 5 | DAUGHTER | — | PENNSYLVANIA |
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)