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Jack Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harrison-County, Kentucky
Our Model Tree links this Jack Martin across the 1920, 1930 and 1940 US Censuses in Harrison-County, Kentucky (XGBoost, ~Confirmed), with identified parents Marion & Will — first a son (b.~1917), then head of a 2-person household.
Age 23
b. ~1917
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Kentucky |
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist # 7 |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | Mag Dist 7 |
| Est. Birth Year | ~1917 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Mrs Martin | Head | — | 51 | ~1889 |
| Jack Martin | Son | — | 23 | ~1917 |
Census Appearances
1920
Harrison, Kentucky
Son, age 3
Harrison, Kentucky · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Harrison, Kentucky
Son, age 13
Harrison, Kentucky · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Jack C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Harrison-County, Kentucky
Son, age 23
Harrison-County, Kentucky · implied b. ~1917 — 2 household members
| Surname | Martin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist # 7 |
| 1935 Residence (County) | Harrison |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | C 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 Jack Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marion Martin (~0.92 confidence) and father Will Martin (~0.92 confidence) and mother Helen Martin (~0.92 confidence) and mother Mrs Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Marion Martin
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Will Martin
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Helen Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mrs Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jack Martin
Son · 1940 · age 23 · b. ~1917 · Kentucky
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harrison-County, Kentucky
Open full size
1940 US Federal Census — Harrison-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01315-00340)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Withers | 7 | Son | — | Kentucky |
| 42 | Mrs. L. D. Stewart | 66 | Head | — | Kentucky |
| 43 | Junius J. Stewart | 31 | Son | Road Construction | Kentucky |
| 44 | William Kimbrough | 28 | Head | Farmer | Kentucky |
| 45 | Elizabeth Kimbrough | 26 | Wife | — | Kentucky |
| 46 | Jack Kimbrough | 4 | Son | — | Kentucky |
| 47 | J. T. Kimbrough | 58 | Head | Farmer | Kentucky |
| 48 | Carrie Kimbrough | 56 | Wife | — | Kentucky |
| 49 | Hulda Kimbrough | 90 | Mother | — | Kentucky |
| 50 | Anna Woodward | 56 | Help | Housekeeper | Kentucky |
| 51 | Joe Lake | 60 | Head | Farmer | Kentucky |
| 52 | Mary Lake | 58 | Wife | — | Kentucky |
| 53 | Joe Fields | 25 | Hired hand | Farm Laborer | Kentucky |
| 54 | Gennetta Hill | 16 | Hired help | House Work | Kentucky |
| 55 | Dane Sharp | 36 | Head | Painter | Kentucky |
| 56 | Doyle Sharp | 28 | Wife | — | Kentucky |
| 57 | Raymond Sharp | 10 | Son | — | Kentucky |
| 58 | Floyd Sharp | 8 | Son | — | Kentucky |
| 59 | Charles Sharp | 6 | Son | — | Kentucky |
| 60 | Carl Sharp | 1 | Son | — | Kentucky |
| 61 | Loyd Tucker | 31 | Head | Farmer | Kentucky |
| 62 | Marie Tucker | 21 | Wife | — | Kentucky |
| 63 | Irarene Tucker | 9 | Daughter | — | Kentucky |
| 64 | John Sharp | 29 | Head | Farm Laborer | Kentucky |
| 65 | Ruby Sharp | 25 | Wife | — | Kentucky |
| 66 | Fraizer Philips | 6 | Step-son | — | Kentucky |
| 67 | Vernon Philips | 2 | Son | — | Kentucky |
| 68 | Orville Doyle | 40 | Head | — | Kentucky |
| 69 | Anna Doyle | 36 | Wife | — | Kentucky |
| 70 | David Doyle | 15 | Son | — | Kentucky |
| 71 | Eunice Doyle | 13 | Daughter | — | Kentucky |
| 72 | Marjorie Doyle | 10 | Daughter | — | Kentucky |
| 73 | A. J. Doyle | 7 | Son | — | Kentucky |
| 74 | Charles Doyle | 4 | Son | — | Kentucky |
| 75 | Donald G. Doyle | 2 | Son | — | Kentucky |
| 76 | Marshal Bell | 28 | Head | Salesman | Kentucky |
| 77 | Jennie Bell | 28 | Wife | — | Kentucky |
| 78 | Marian Bell | 0 | Son | — | Kentucky |
| 79 | Mrs. M. D. Martin | 51 | Head | — | Kentucky |
| 80 | Jack Martin THIS PERSON | 23 | Son | Farmer | Kentucky |
Pedigree Summary
Jack
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)