MK
Martha King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rockcastle-County, Kentucky
Our Model Tree links this Martha King across the 1920, 1930 and 1940 US Censuses in Rockcastle-County, Kentucky (XGBoost, ~Confirmed), with identified parents Charles & Charley — first a daughter (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Female
Daughter
Born: Kentucky
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockcastle-County, Kentucky |
| Surname | King |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Separated |
| Birthplace | Kentucky |
| 1935 Residence (City) | mag dist 4 |
| 1935 Residence (County) | Rockcastle |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same home |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 4 |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Charley King | Head | — | 44 | ~1896 |
| Sarah King | Spouse | — | 42 | ~1898 |
| Julia King | Daughter | — | 15 | ~1925 |
| Martha King | Daughter | — | 21 | ~1919 |
Census Appearances
1920
Rockcastle, Kentucky
Daughter, age
Rockcastle, Kentucky · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Rockcastle, Kentucky
Daughter, age 11
Rockcastle, Kentucky · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Rockcastle-County, Kentucky
Daughter, age 21
Rockcastle-County, Kentucky · implied b. ~1919 — 4 household members
| Surname | King |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Separated |
| Birthplace | Kentucky |
| 1935 Residence (City) | mag dist 4 |
| 1935 Residence (County) | Rockcastle |
| Highest Grade | No 3 |
| 1935 Residence | Same home |
| 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 Martha King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles King (~0.92 confidence) and father Charley King (~0.92 confidence) and mother Sarah King (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles King
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Charley King
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Sarah King
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha King
Daughter · 1940 · age 21 · b. ~1919 · Kentucky
★ You are viewing this record
Sibling
Julia King
Sibling · 1940 · age 15
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 — Rockcastle-County, Kentucky
Open full size
1940 US Federal Census — Rockcastle-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01353-00450)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Luther Miller | 33 | Head | Farmer | Kentucky |
| 42 | Ettie Miller | 34 | Wife | — | Kentucky |
| 43 | William Miller | 9 | son | — | Kentucky |
| 44 | Helen Miller | 6 | daughter | — | Kentucky |
| 45 | Mildred Miller | 4 | daughter | — | Kentucky |
| 46 | James E. Mcguire | 74 | Head | Farmer | Kentucky |
| 47 | Blue Stall | 40 | Head | — | Kentucky |
| 48 | Elijah Chasteen | 26 | Head | Farmer | Kentucky |
| 49 | Pearl Chasteen | 20 | wife | — | Kentucky |
| 50 | William Chasteen | 3 | son | — | Kentucky |
| 51 | Retha Bell Chasteen | 1 | daughter | — | Kentucky |
| 52 | Floyd Chasteen | 0 | son | — | Kentucky |
| 53 | John B. Payne | 34 | Head | Merchant | Kentucky |
| 54 | Mayme Payne | 37 | wife | — | Tennessee |
| 55 | Sue Payne | 7 | daughter | — | Kentucky |
| 56 | Betty Payne | 6 | daughter | — | Kentucky |
| 57 | John B. Jr. Payne | 4 | son | — | Kentucky |
| 58 | Albert Abney | 35 | Head | Laborer | Kentucky |
| 59 | Mattie Abney | 23 | wife | — | Kentucky |
| 60 | Marvin Abney | 5 | son | — | Kentucky |
| 61 | William Abney | 1 | son | — | Kentucky |
| 62 | Allie Halk | 60 | Head | Housekeeper | Kentucky |
| 63 | Klann (Ab) Halk | 19 | daughter | — | Kentucky |
| 64 | Curtis Halk | 34 | Head | Merchant | Kentucky |
| 65 | Gertrude Halk | 37 | wife | — | Kentucky |
| 66 | Jack Halk | 10 | son | — | Kentucky |
| 67 | Ted Croucher | 21 | Head | Laborer | Kentucky |
| 68 | Juanita Croucher | 20 | wife | — | Kentucky |
| 69 | Angie Croucher | 6 | daughter | — | Kentucky |
| 70 | Anna Mae Croucher | 4 | daughter | — | Kentucky |
| 71 | Jimmie Croucher | 0 | son | — | Kentucky |
| 72 | William Croucher | 52 | Head | Farmer | Kentucky |
| 73 | Cynthia Croucher | 31 | wife | — | Kentucky |
| 74 | Huea Croucher | 29 | son | Laborer | Kentucky |
| 75 | Charley Croucher | 18 | son | Laborer | Kentucky |
| 76 | Evertt Croucher | 10 | son | Laborer | Kentucky |
| 77 | Charley King | 44 | Head | Laborer | Kentucky |
| 78 | Sarah King | 42 | wife | — | Kentucky |
| 79 | Martha King THIS PERSON | 21 | daughter | — | Kentucky |
| 80 | Julia King | 15 | daughter | — | Kentucky |
Related Census Records
Pedigree Summary
Martha + 1 sibling
Gen 1 · 3 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)