MC
Martha Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Breckinridge-County, Kentucky
Our Model Tree links this Martha Clark across the 1920, 1930 and 1940 US Censuses in Breckinridge-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Breckinridge-County, Kentucky |
| Surname | Clark |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. #6 |
| 1935 Residence (County) | Breckinridge |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Mag Dist 6 |
| Est. Birth Year | ~1872 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Marian Clark | Head | — | 63 | ~1877 |
| Ona Clark | Son | — | 29 | ~1911 |
| Martha Clark | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Breckinridge, Kentucky
Spouse, age 47
Breckinridge, Kentucky · implied b. ~1873 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Martha A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Breckinridge, Kentucky
Other, age 58
Breckinridge, Kentucky · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Martha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 29 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Breckinridge-County, Kentucky
Spouse, age 68
Breckinridge-County, Kentucky · implied b. ~1872 — 3 household members
| Surname | Clark |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. #6 |
| 1935 Residence (County) | Breckinridge |
| Highest Grade | No 4 |
| 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 Martha Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Clark
Spouse · 1940 · age 68 · b. ~1872 · Kentucky
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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-t0627-01286-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen E. Carman | 13 | Daughter | — | Kentucky |
| 42 | Jasper M. Carman | 65 | Father | — | Kentucky |
| 43 | Cecil Lucas | 30 | Head | Farmer | Kentucky |
| 44 | Charley Lucas | 70 | Father | — | Kentucky |
| 45 | Ora H. Riley | 49 | Head | Farmer | Kentucky |
| 46 | Ora Riley | 33 | Wife | — | Kentucky |
| 47 | Harold Riley | 14 | Son | — | Kentucky |
| 48 | Anna L. Riley | 12 | Daughter | — | Kentucky |
| 49 | Alene Riley | 10 | Daughter | — | Kentucky |
| 50 | Franklin Riley | 7 | Son | — | Kentucky |
| 51 | Betty S. Riley | 2 | Daughter | — | Kentucky |
| 52 | Willard Riley | 24 | Hired hand | Farmer | Kentucky |
| 53 | Mora Arms | 29 | Servant | — | Kentucky |
| 54 | Homer Riley | 32 | Head | Merchant | Kentucky |
| 55 | Binen Clark | 38 | Head | Farmer | Kentucky |
| 56 | Lenie Clark | 32 | Wife | — | Kentucky |
| 57 | Mary Clark | 12 | Daughter | — | Kentucky |
| 58 | Marjorie Clark | 10 | Daughter | — | Kentucky |
| 59 | William E. Clark | 8 | Son | — | Kentucky |
| 60 | Benedict D. Clark | 76 | Head | — | Kentucky |
| 61 | Molly Clark | 42 | Daughter | — | Kentucky |
| 62 | Lonnie Clark | 42 | Head | Farmer | Kentucky |
| 63 | Lanie Clark | 36 | Wife | — | Kentucky |
| 64 | Cleo Clark | 16 | Daughter | — | Kentucky |
| 65 | Rena Clark | 14 | Daughter | — | Kentucky |
| 66 | Herbert H. Clark | 11 | Son | — | Kentucky |
| 67 | Gemma Clark | 5 | Daughter | — | Kentucky |
| 68 | James Clark | 3 | Son | — | Kentucky |
| 69 | Helen Clark | 2 | Daughter | — | Kentucky |
| 70 | Robert Lucas | 41 | Head | Farmer | Kentucky |
| 71 | Rosie Lucas | 32 | Wife | — | Kentucky |
| 72 | Lorene Lucas | 12 | Daughter | — | Kentucky |
| 73 | Schelly Lucas | 6 | Daughter | — | Kentucky |
| 74 | William Lucas | 4 | Son | — | Kentucky |
| 75 | Phillip Lucas | 2 | Son | — | Kentucky |
| 76 | Marian H. Clark | 63 | Head | Farmer | Kentucky |
| 77 | Martha Clark THIS PERSON | 68 | Wife | — | Kentucky |
| 78 | Ona Clark | 29 | Son | Farmer | Kentucky |
| 79 | Bessie Gentries | 37 | Head | — | Kentucky |
| 80 | Harley Gentries | 15 | Son | Farmer | 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)