MK
Mary Knapp — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Taylor-County, Kentucky
Our Model Tree links this Mary Knapp across the 1930 and 1940 US Censuses in Taylor-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Taylor-County, Kentucky |
| Surname | Knapp |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 6 |
| 1935 Residence (County) | Taylor |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 6 |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Beatrice Knapp | Daughter | — | 17 | ~1923 |
| Mabel Knapp | Spouse | — | 34 | ~1906 |
| Ernest Knapp | Head | — | 57 | ~1883 |
| Willard Morgan | Other | — | 24 | ~1916 |
| Kenneth Knapp | Son | — | 10 | ~1930 |
| Carol Knapp | Son | — | 6 | ~1934 |
| Mary Robinson | Other | — | 58 | ~1882 |
| Mary Knapp | Daughter | — | 11 | ~1929 |
| Violet Knapp | Daughter | — | 13 | ~1927 |
| Mary Morgan | Other | — | 24 | ~1916 |
Census Appearances
1930
Taylor, Kentucky
Daughter, age 1
Taylor, Kentucky · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knopp |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Taylor-County, Kentucky
Daughter, age 11
Taylor-County, Kentucky · implied b. ~1929 — 10 household members
| Surname | Knapp |
| Given Name | Mary V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 6 |
| 1935 Residence (County) | Taylor |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Knapp across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knapp
Daughter · 1940 · age 11 · b. ~1929 · Kentucky
★ You are viewing this record
Sibling
Kenneth Knapp
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Knapp
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Knapp
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Knapp
Sibling · 1940 · age 6
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 — Taylor-County, Kentucky
Open full size
1940 US Federal Census — Taylor-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01357-00871)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray Blankenship | 34 | Head | Farmer | Kentucky |
| 2 | Edith R. Blankenship | 34 | Wife | — | Kentucky |
| 3 | Robert L. Blankenship | 11 | Son | — | Kentucky |
| 4 | Edward Colvin | 73 | Head | — | Kentucky |
| 5 | Herbert L. Dapp | 35 | Head | Rural Mail Carrier | Kentucky |
| 6 | Ninna A. Dapp | 32 | Wife | — | Kentucky |
| 7 | Ailene E. Dapp | 12 | Daughter | — | Kentucky |
| 8 | Herbert Jr. Dapp | 11 | Son | — | Kentucky |
| 9 | Ronald Dapp | 9 | Son | — | Kentucky |
| 10 | H. Lindale Dapp | 8 | Son | — | Kentucky |
| 11 | Keith Dapp | 5 | Son | — | Kentucky |
| 12 | Francis M. Dapp | 3 | Son | — | Kentucky |
| 13 | Nellie G. Dapp | 1 | Son | — | Kentucky |
| 14 | Jerry N. Dapp | 0 | Son | — | Kentucky |
| 15 | Ernest Knapp | 57 | Head | Salesman | Kentucky |
| 16 | Mabel B. Knapp | 34 | Wife | — | Kentucky |
| 17 | Beatrice Knapp | 17 | Daughter | — | Kentucky |
| 18 | Violet V. Knapp | 13 | Daughter | — | Kentucky |
| 19 | Mary V. Knapp THIS PERSON | 11 | Daughter | — | Kentucky |
| 20 | Kenneth B. Knapp | 10 | Son | — | Kentucky |
| 21 | Carol C. Knapp | 6 | Son | — | Kentucky |
| 22 | Mary C. Robinson | 58 | Mother in law | — | Kentucky |
| 23 | Willard M. Morgan | 24 | Nephew | Farmer | Kentucky |
| 24 | Mary C. Morgan | 24 | Niece | — | Kentucky |
| 25 | Henry M. Moore | 82 | Head | — | Kentucky |
| 26 | F. Emma Moore | 72 | Wife | — | Kentucky |
| 27 | Fred B. Moore | 38 | Son | — | Kentucky |
| 28 | Will M. Hauley | 55 | Head | Farmer | Tennessee |
| 29 | Millie A. Hauley | 54 | Wife | — | Kentucky |
| 30 | Billy C. Hauley | 19 | Son | Farmer | Kentucky |
| 31 | C. Evelyn Hauley | 18 | Daughter | — | Kentucky |
| 32 | Lizzie M. Dapp | 49 | Head | — | Kentucky |
| 33 | Tommie Dapp | 30 | Son | Mechanic | Kentucky |
| 34 | Florence Dapp | 19 | Daughter | — | Kentucky |
| 35 | Charles R. Isent | 6 | Grandson | — | Kentucky |
| 36 | Robert C. Gantz | 31 | Head | — | Kentucky |
| 37 | Sylvester A. Dapp | 44 | Head | Salesman | Kentucky |
| 38 | James O. Dapp | 16 | Son | Salesman | Kentucky |
| 39 | Frances J. Dapp | 7 | Daughter | — | Kentucky |
| 40 | Theresa H. Dapp | 4 | Daughter | — | 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)