MD
Mary Dunn — 1940 US Census Record
Model Tree available1940 United States Federal Census · Nicholas-County, Kentucky
Our Model Tree links this Mary Dunn across the 1920, 1930 and 1940 US Censuses in Nicholas-County, Kentucky (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Nicholas-County, Kentucky |
| Surname | Dunn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. D. 3 |
| 1935 Residence (County) | Nicholas |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag D 3 |
| Est. Birth Year | ~1913 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Dunn | Daughter | — | 27 | ~1913 |
| John Dunn | Head | — | 73 | ~1867 |
| Roger Dunn | Son | — | 28 | ~1912 |
Census Appearances
1920
Nicholas, Kentucky
Daughter, age 7
Nicholas, Kentucky · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Nicholas, Kentucky
Daughter, age 17
Nicholas, Kentucky · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Nicholas-County, Kentucky
Daughter, age 27
Nicholas-County, Kentucky · implied b. ~1913 — 3 household members
| Surname | Dunn |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. D. 3 |
| 1935 Residence (County) | Nicholas |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 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 Dunn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Dunn (~0.92 confidence) and father John Dunn (~0.92 confidence) and father John Dunn (~0.92 confidence) and mother Lizzie Dunn (~0.92 confidence) and mother Elizabeth Dunn (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Dunn
b. ~1867
Source father
● Household
· direct · ~0.92
Father
John Dunn
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Dunn
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Lizzie Dunn
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Dunn
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Dunn
Daughter · 1940 · age 27 · b. ~1913 · Kentucky
★ You are viewing this record
Sibling
Roger Dunn
Sibling · 1940 · age 28
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 — Nicholas-County, Kentucky
Open full size
1940 US Federal Census — Nicholas-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01345-00608)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daughter Francis | None | F | — | — |
| 2 | Daughter Geneva | None | F | — | — |
| 3 | Son Everett | None | M | — | — |
| 4 | John Kilander | 40 | Head | Farmer | Kentucky |
| 5 | Grace Kilander | 36 | Wife | — | Kentucky |
| 6 | Imogene Kilander | 15 | Daughter | — | Kentucky |
| 7 | Lorraine Kilander | 12 | Daughter | — | Kentucky |
| 8 | Luther Peters | 47 | Head | Farmer | Kentucky |
| 9 | Candis Peters | 47 | Wife | — | Kentucky |
| 10 | Elma Peters | 22 | Daughter | — | Kentucky |
| 11 | Pragg Peters | 16 | Son | — | Kentucky |
| 12 | Lucille Peters | 14 | Daughter | — | Kentucky |
| 13 | Alan Peters | 12 | Son | — | Kentucky |
| 14 | Ellis Peters | 6 | Son | — | Kentucky |
| 15 | Robert Humphries | 55 | Head | Farmer | Kentucky |
| 16 | Alice Humphries | 53 | Wife | — | Kentucky |
| 17 | Vallie Lou Humphries | 25 | Son | Labor | Kentucky |
| 18 | William Smart | 51 | Head | Farmer | Kentucky |
| 19 | Emma Smart | 47 | Wife | — | Kentucky |
| 20 | William Smart | 20 | Son | — | Kentucky |
| 21 | Renita Smart | 16 | Son | — | Kentucky |
| 22 | Richard Newman | 10 | Boarder | — | Ohio |
| 23 | Grey Barbee | 26 | Head | Labor | Kentucky |
| 24 | Lorena Barbee | 21 | Wife | — | Kentucky |
| 25 | Paul R. Barbee | 4 | Son | — | Kentucky |
| 26 | Noble T. Barbee | 2 | Son | — | Kentucky |
| 27 | Carlene Barbee | 0 | Daughter | — | Kentucky |
| 28 | Ned Woodall | 42 | Head | Farmer | Kentucky |
| 29 | Stella Woodall | 38 | Wife | — | Kentucky |
| 30 | Kathryn Woodall | 17 | Daughter | — | Kentucky |
| 31 | Elizabeth Woodall | 16 | Daughter | — | Kentucky |
| 32 | Villie Mae Woodall | 15 | Daughter | — | Kentucky |
| 33 | Ramona Woodall | 13 | Daughter | — | Kentucky |
| 34 | Loralene Woodall | 11 | Daughter | — | Kentucky |
| 35 | Jimmie Woodall | 8 | Son | — | Kentucky |
| 36 | N. J. Jr. Woodall | 2 | Son | — | Kentucky |
| 37 | L. H. Woodall | 34 | Brother | Carpenter | Kentucky |
| 38 | John Dunn | 73 | Head | Farmer | Kentucky |
| 39 | Roger Dunn | 28 | Son | Farmer | Kentucky |
| 40 | Mary Dunn THIS PERSON | 27 | Daughter | — | Kentucky |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)