MC
Marion Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rockcastle-County, Kentucky
Our Model Tree links this Marion Clark across the 1920, 1930 and 1940 US Censuses in Rockcastle-County, Kentucky (XGBoost, ~Confirmed), with identified parents Alonzo & Henry — first a son (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockcastle-County, Kentucky |
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 5 |
| 1935 Residence (County) | Rockcastle |
| Additional Details | |
| Occupation | farmer |
| Industry | Agriculture |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Mag Dist 5 |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Hayes Clark | Son | — | 15 | ~1925 |
| Sara Clark | Spouse | — | 50 | ~1890 |
| Henry Clark | Head | — | 53 | ~1887 |
| George Clark | Son | — | 17 | ~1923 |
| Marion Clark | Son | — | 30 | ~1910 |
Census Appearances
1920
Rockcastle, Kentucky
Son, age 9
Rockcastle, Kentucky · implied b. ~1911 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Rockcastle, Kentucky
Son, age 20
Rockcastle, Kentucky · implied b. ~1910 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| 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
Son, age 30
Rockcastle-County, Kentucky · implied b. ~1910 — 5 household members
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag Dist 5 |
| 1935 Residence (County) | Rockcastle |
| Occupation | farmer |
| Industry | Agriculture |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| 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 Marion Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alonzo Clark (~0.92 confidence) and father Henry Clark (~0.92 confidence) and mother Sara Clark (~0.92 confidence) and mother Sarah Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alonzo Clark
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Henry Clark
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Sara Clark
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Sarah Clark
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Clark
Son · 1940 · age 30 · b. ~1910 · Kentucky
★ You are viewing this record
Sibling
Hayes Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Clark
Sibling · 1940 · age 17
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-t0627-01353-00507)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Raymond Clark | 11 | son | — | Kentucky |
| 42 | Leonard Baker | 37 | head | Laborer | Kentucky |
| 43 | Lucy Baker | 33 | wife | — | Kentucky |
| 44 | Beatrice Baker | 14 | daughter | — | Kentucky |
| 45 | Jimmie Baker | 11 | son | — | Kentucky |
| 46 | Paul Baker | 5 | son | — | Kentucky |
| 47 | Chester Robinson | 27 | head | Laborer | Kentucky |
| 48 | Ada Robinson | 16 | wife | — | Kentucky |
| 49 | Sally Robinson | 0 | daughter | — | Kentucky |
| 50 | Moss Mullins | 52 | head | Merchant | Kentucky |
| 51 | Eula Mullins | 30 | wife | — | Tennessee |
| 52 | Kermit Mullins | 14 | son | — | Kentucky |
| 53 | Cald Burnett | 47 | head | Farmer Merchant | Kentucky |
| 54 | Myrtle Burnett | 45 | wife | Merchant | Kentucky |
| 55 | Edna Burnett | 20 | daughter | — | Kentucky |
| 56 | Carrie Smith | 45 | head | Housekeeper | Kentucky |
| 57 | Bettie Smith | 10 | daughter | — | Kentucky |
| 58 | Elbert Smith | 6 | son | — | Kentucky |
| 59 | Ray Smith | 4 | son | — | Kentucky |
| 60 | Elliot Robinson | 27 | head | Laborer | Kentucky |
| 61 | Viola Robinson | 16 | wife | — | Kentucky |
| 62 | L.C. Hickey | 53 | head | Farming | Kentucky |
| 63 | Laura Hickey | 53 | wife | — | Kentucky |
| 64 | Tommy Hickey | 17 | son | — | Kentucky |
| 65 | Jesse Abney | 30 | head | Truck Driver | Kentucky |
| 66 | Virginia Abney | 26 | wife | — | Kentucky |
| 67 | Reva Abney | 7 | daughter | — | Kentucky |
| 68 | Wayne Abney | 5 | son | — | Kentucky |
| 69 | Chester Clark | 28 | head | Laborer | Kentucky |
| 70 | Sara Jane Clark | 22 | wife | — | Kentucky |
| 71 | Barney Clark | 5 | son | — | Kentucky |
| 72 | Bike Jordan | 25 | head | Farmer | Kentucky |
| 73 | Daisy Jordan | 25 | wife | — | Kentucky |
| 74 | Billy Jordan | 4 | son | — | Kentucky |
| 75 | Flossy Shearer | 54 | mother-in-law | — | Kentucky |
| 76 | Henry Clark | 53 | head | Farmer | Kentucky |
| 77 | Sara Clark | 50 | wife | — | Kentucky |
| 78 | Marion Clark THIS PERSON | 30 | son | Farmer | Kentucky |
| 79 | George Clark | 17 | son | — | Kentucky |
| 80 | Hayes Clark | 15 | son | — | Kentucky |
Pedigree Summary
Marion + 2 siblings
Gen 1 · 4 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)