MD
Mary Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pike-County, Kentucky
Our Model Tree links this Mary Dempsey across the 1930 and 1940 US Censuses in Pike-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Kentucky |
| Surname | Dempsey |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial District 6 |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial District 6 |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Dempsey | Son | — | 11 | ~1929 |
| Everett Dempsey | Son | — | 13 | ~1927 |
| Silas Dempsey | Son | — | 8 | ~1932 |
| Mary Dempsey | Daughter | — | 13 | ~1927 |
| Thomas Dempsey | Head | — | 45 | ~1895 |
| Emma Dempsey | Spouse | — | 39 | ~1901 |
| Betty Dempsey | Daughter | — | 3 | ~1937 |
| Herman Dempsey | Son | — | 17 | ~1923 |
| Leslie Dempsey | Son | — | 15 | ~1925 |
| Mildred Dempsey | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Pike, Kentucky
Daughter, age 3
Pike, Kentucky · implied b. ~1927 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | W. Virginia |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Pike-County, Kentucky
Daughter, age 13
Pike-County, Kentucky · implied b. ~1927 — 10 household members
| Surname | Dempsey |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial District 6 |
| 1935 Residence (County) | Pike |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Dempsey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dempsey
Daughter · 1940 · age 13 · b. ~1927 · Kentucky
★ You are viewing this record
Sibling
Mildred Dempsey
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Dempsey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Dempsey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Dempsey
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Silas Dempsey
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Dempsey
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dempsey
Sibling · 1940 · age 11
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 — Pike-County, Kentucky
Open full size
1940 US Federal Census — Pike-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01351-00174)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles H Milliard | 23 | Head | Miner | Kentucky |
| 42 | Muriel Milliard | 22 | Wife | — | Virginia |
| 43 | George T Milliard | 2 | Son | — | Virginia |
| 44 | Carl Stanley | 25 | Head | Miner | Kentucky |
| 45 | Nora M Stanley | 30 | Wife | — | Kentucky |
| 46 | Shelby J Stanley | 2 | Daughter | — | Kentucky |
| 47 | John P Milliard | 38 | Head | Farmer | Kentucky |
| 48 | Stella Milliard | 42 | Wife | — | Virginia |
| 49 | Wade Scarberry | 44 | Head | Carpenter | Virginia |
| 50 | Elsie Scarberry | 42 | Wife | — | Kentucky |
| 51 | Fred Scarberry | 17 | Son | Labor | Kentucky |
| 52 | Etta Scarberry | 15 | Son | — | Kentucky |
| 53 | Raymond Scarberry | 13 | Son | — | Kentucky |
| 54 | Lucian Scarberry | 12 | Son | — | Kentucky |
| 55 | Francis Scarberry | 10 | Son | — | Kentucky |
| 56 | Noah Slater | 53 | Head | Section Hand | Kentucky |
| 57 | Rosa Slater | 51 | Wife | — | Kentucky |
| 58 | William Slater | 22 | Head | — | Kentucky |
| 59 | Wallice Slater | 41 | Son | — | Kentucky |
| 60 | Armilda Stacey | 40 | Servant | Servant | West Virginia |
| 61 | Landon Smith | 37 | Head | Pipe Fitter Helper | Kentucky |
| 62 | Myrtle Smith | 38 | Wife | — | Kentucky |
| 63 | Hattie Smith | 15 | Daughter | — | Kentucky |
| 64 | Ruby I Smith | 8 | Daughter | — | Kentucky |
| 65 | Thomas Dempsey | 45 | Head | Farmer | Virginia |
| 66 | Emma Dempsey | 39 | Wife | — | Kentucky |
| 67 | Herman B Dempsey | 17 | Son | Labor | Kentucky |
| 68 | Leslie B Dempsey | 15 | Son | — | Kentucky |
| 69 | Everett J Dempsey | 13 | Son | — | Kentucky |
| 70 | Mary E Dempsey THIS PERSON | 13 | Daughter | — | Kentucky |
| 71 | Thomas J Dempsey | 11 | Son | — | Kentucky |
| 72 | Silas J Dempsey | 8 | Son | — | Kentucky |
| 73 | Mildred J Dempsey | 6 | Daughter | — | Kentucky |
| 74 | Betty Joe Dempsey | 3 | Daughter | — | Kentucky |
| 75 | William Slater | 31 | Head | Section Hand | Kentucky |
| 76 | Birdie Slater | 26 | Wife | — | Kentucky |
| 77 | Dorothy L Slater | 2 | Daughter | — | Kentucky |
| 78 | Winfield Blackburn | 57 | Head | Farmer | Kentucky |
| 79 | Westa Blackburn | 49 | Wife | Servant | Kentucky |
| 80 | Roy Blackburn | 23 | Son | Farm Labor | Kentucky |
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)