MK
Mary Knight — 1940 US Census Record
Model Tree available1940 United States Federal Census · Breckinridge-County, Kentucky
Our Model Tree links this Mary Knight across the 1910, 1920, 1930 and 1940 US Censuses in Breckinridge-County, Kentucky (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1907), then head of a 7-person household.
Age 33
b. ~1907
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Breckinridge-County, Kentucky |
| Surname | Knight |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 3 Cloverport |
| Additional Details | |
| Highest Grade | Hs 4 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Magisterial Dist 3 Cloverport |
| Est. Birth Year | ~1907 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bernadine Knight | Daughter | — | 21 | ~1919 |
| Mary Knight | Daughter | — | 33 | ~1907 |
| William Knight | Head | — | 57 | ~1883 |
| Francis Knight | Son | — | 25 | ~1915 |
| Ernest Knight | Son | — | 19 | ~1921 |
| Gus Knight | Son | — | 23 | ~1917 |
| Helen Knight | Spouse | — | 57 | ~1883 |
Census Appearances
1910
Breckinridge, Kentucky
Daughter, age 3
Breckinridge, Kentucky · implied b. ~1907 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Speaks English | English |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Breckinridge, Kentucky
Daughter, age 13
Breckinridge, Kentucky · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Mary I |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Breckinridge, Kentucky
Daughter, age 23
Breckinridge, Kentucky · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| 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
Breckinridge-County, Kentucky
Daughter, age 33
Breckinridge-County, Kentucky · implied b. ~1907 — 7 household members
| Surname | Knight |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Magisterial Dist 3 Cloverport |
| Highest Grade | Hs 4 |
| 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 Knight across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Knight (~0.92 confidence) and father William Knight (~0.92 confidence) and mother Helen Knight (~0.92 confidence) and mother Helen Knight (~0.92 confidence) and father William Knight (~0.92 confidence) and mother Helen Knight (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Knight
b. ~1883
Source father
● Household
· direct · ~0.92
Father
William Knight
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Helen Knight
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Helen Knight
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
William Knight
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Helen Knight
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Knight
Daughter · 1940 · age 33 · b. ~1907 · Kentucky
★ You are viewing this record
Sibling
Ernest Knight
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Knight
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Knight
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gus Knight
Sibling · 1940 · age 23
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 — Breckinridge-County, Kentucky
Open full size
1940 US Federal Census — Breckinridge-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01286-00197)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Stanley Snyder | 5 | son | — | Kentucky |
| 2 | Janette Snyder | 1 | daughter | — | Kentucky |
| 3 | Jack Van Grist | 38 | head | Laborer | Kentucky |
| 4 | James Van Grist | 12 | son | — | Kentucky |
| 5 | William Van Grist | 8 | son | — | Kentucky |
| 6 | Eliza Van Grist | 63 | mother | — | Kentucky |
| 7 | Curtis Sam | 24 | head | Driver | Kentucky |
| 8 | Virginia Sam | 23 | wife | — | Kentucky |
| 9 | Donald Sam | 1 | son | — | Kentucky |
| 10 | Ed O'Riley | 64 | head | Farm | Kentucky |
| 11 | Florence O'Riley | 54 | wife | — | Kentucky |
| 12 | Robert Duke | 64 | head | Farm | Kentucky |
| 13 | Etta Duke | 67 | wife | — | Kentucky |
| 14 | Katie Mae Duke | 38 | daughter | — | Kentucky |
| 15 | P. O. Burnett | 62 | head | Laborer | Kentucky |
| 16 | William Snyder | 65 | head | Farm | Kentucky |
| 17 | Sarah Snyder | 55 | wife | — | Kentucky |
| 18 | Dolly Snyder | 26 | daughter | — | Kentucky |
| 19 | Helen Snyder | 21 | daughter | — | Kentucky |
| 20 | James Snyder | 20 | son | Tile Plant | Kentucky |
| 21 | Delores Snyder | 9 | daughter | — | Kentucky |
| 22 | William Knight | 57 | head | Farm | Kentucky |
| 23 | Helen Knight | 57 | wife | — | Kentucky |
| 24 | Mary Knight THIS PERSON | 33 | daughter | — | Kentucky |
| 25 | Bernadine Knight | 21 | daughter | — | Kentucky |
| 26 | Francis Knight | 25 | son | Farm | Kentucky |
| 27 | Gus Knight | 23 | son | Farm | Kentucky |
| 28 | Ernest Knight | 19 | son | Farm | Kentucky |
| 29 | J. T. Hardin | 47 | head | Farm | Kentucky |
| 30 | Lucy Hardin | 72 | wife | — | Kentucky |
| 31 | Gordon Mcgavock | 75 | lodger | — | Kentucky |
| 32 | Ada Knight | 46 | head | Farm | Kentucky |
| 33 | William Knight | 20 | son | Farm | Kentucky |
| 34 | John Knight | 20 | son | Farm | Kentucky |
| 35 | Paul Knight | 17 | son | Farm | Kentucky |
| 36 | Curtis Knight | 17 | son | Farm | Kentucky |
| 37 | Harold Knight | 8 | son | — | Kentucky |
| 38 | Henry Smiley | 45 | head | Farmer | Kentucky |
| 39 | Nettie Smiley | 41 | wife | — | Kentucky |
| 40 | Ray Smiley | 22 | son | Laborer | Kentucky |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 6 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)