MD
Mary Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · York-County, South Carolina
Our Model Tree links this Mary Dunlap across the 1930 and 1940 US Censuses in York-County, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | York-County, South Carolina |
| Surname | Dunlap |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rock Hill |
| 1935 Residence (County) | York |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Rock Hill |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Johnie Dunlap | Daughter | — | 15 | ~1925 |
| Charles Dunlap | Son | — | 4 | ~1936 |
| Lula Dunlap | Spouse | — | 40 | ~1900 |
| William Dunlap | Son | — | 19 | ~1921 |
| James Dunlap | Son | — | 5 | ~1935 |
| Mary Dunlap | Daughter | — | 16 | ~1924 |
| Lula Dunlap | Daughter | — | 12 | ~1928 |
| Glen Dunlap | Head | — | 41 | ~1899 |
| Ola Dunlap | Daughter | — | 17 | ~1923 |
Census Appearances
1930
York, South …
Daughter, age 8
York, South Carolina · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
York-County, South …
Daughter, age 16
York-County, South Carolina · implied b. ~1924 — 9 household members
| Surname | Dunlap |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Rock Hill |
| 1935 Residence (County) | York |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dunlap
Daughter · 1940 · age 16 · b. ~1924 · South Carolina
★ You are viewing this record
Sibling
James Dunlap
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Dunlap
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ola Dunlap
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnie Dunlap
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Dunlap
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Dunlap
Sibling · 1940 · age 12
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 — York-County, South Carolina
Open full size
1940 US Federal Census — York-County, South Carolina
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03845-00820)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ben Mobley | 40 | Head | Janitor | South Carolina |
| 42 | Louie Mobley | 36 | Wife | — | South Carolina |
| 43 | Bennie Mobley | 22 | Daughter | Teacher | South Carolina |
| 44 | Ronald Mobley | 18 | Son | — | South Carolina |
| 45 | Carrie Mobley | 17 | Daughter | — | South Carolina |
| 46 | Ural Mobley | 16 | Daughter | — | South Carolina |
| 47 | Freddie Mobley | 13 | Daughter | — | South Carolina |
| 48 | Deogra Mobley | 11 | Daughter | — | South Carolina |
| 49 | Gloria Mobley | 9 | Daughter | — | South Carolina |
| 50 | Moses Rabb | 31 | Head | Truck Driver | South Carolina |
| 51 | Mary Rabb | 30 | Wife | — | South Carolina |
| 52 | Willie Moore | 50 | Brother-in-law | — | South Carolina |
| 53 | Sam Broome | 60 | Head | Truck Driver | North Carolina |
| 54 | Robbie Broome | 50 | Wife | — | North Carolina |
| 55 | Bunter Leach | 35 | Head | Bell-Boy | North Carolina |
| 56 | Marion Leach | 35 | Wife | Maid | South Carolina |
| 57 | Glen Dunlap | 41 | Head | Truck Driver | South Carolina |
| 58 | Lula Dunlap | 40 | Wife | Servant | South Carolina |
| 59 | William Dunlap | 19 | Son | Truck Driver | South Carolina |
| 60 | Ola Mae Dunlap | 17 | Daughter | — | South Carolina |
| 61 | Mary H. Dunlap THIS PERSON | 16 | Daughter | — | South Carolina |
| 62 | Johnie Dunlap | 15 | Daughter | — | South Carolina |
| 63 | Lula Dunlap | 12 | Daughter | — | South Carolina |
| 64 | James Dunlap | 5 | Son | — | South Carolina |
| 65 | Charles Dunlap | 4 | Son | — | South Carolina |
| 66 | Jack Franklin | 33 | Head | General Work | South Carolina |
| 67 | Nancy Franklin | 33 | Wife | Servant | South Carolina |
| 68 | Arline Franklin | 17 | Daughter | — | South Carolina |
| 69 | Theodora Franklin | 16 | Son | — | South Carolina |
| 70 | Duck Franklin | 14 | Son | — | South Carolina |
| 71 | Janette Franklin | 13 | Daughter | — | South Carolina |
| 72 | Johnnie Mae Franklin | 9 | Daughter | — | South Carolina |
| 73 | Robbie Franklin | 8 | Daughter | — | South Carolina |
| 74 | Emma James | 40 | Head | Servant | South Carolina |
| 75 | Mary James | 22 | Daughter | Wash | South Carolina |
| 76 | Isabell James | 21 | Daughter | — | South Carolina |
| 77 | Willie James | 19 | Son | — | South Carolina |
| 78 | Alexander James | 15 | Son | Delivery Boy | South Carolina |
| 79 | Lula James | 12 | Daughter | — | South Carolina |
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)