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Harold Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ohio-County, Kentucky
Our Model Tree links this Harold Martin across the 1920, 1930 and 1940 US Censuses in Ohio-County, Kentucky (XGBoost, ~Confirmed), with identified parents William & Louis — first a head (b.~1912), then head of a 6-person household.
Age 28
b. ~1912
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ohio-County, Kentucky |
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. #1 Sulphur Springs |
| 1935 Residence (County) | Ohio |
| Additional Details | |
| Occupation | Tractor driver |
| Industry | Mantle Road Project |
| Class of Worker | GW |
| Hours Worked | 49 |
| Income (1939) | 237 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Tractor Driver |
| Township / Ward | Mag Dist 1 Sulphur Springs |
| Est. Birth Year | ~1912 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Billy Martin | Son | — | 5 | ~1935 |
| Doris Martin | Daughter | — | 2 | ~1938 |
| Ernestine Martin | Spouse | — | 23 | ~1917 |
| Harold Martin | Head | — | 28 | ~1912 |
| Edwin Martin | Daughter | — | ~1940 | |
| Raymond Martin | Son | — | 8 | ~1932 |
Census Appearances
1920
Ohio, Kentucky
Son, age 8
Ohio, Kentucky · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Ohio, Kentucky
Son, age 18
Ohio, Kentucky · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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
Ohio-County, Kentucky
Head, age 28
Ohio-County, Kentucky · implied b. ~1912 — 6 household members
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. #1 Sulphur Springs |
| 1935 Residence (County) | Ohio |
| Occupation | Tractor driver |
| Industry | Mantle Road Project |
| Class of Worker | GW |
| Hours Worked | 49 |
| Income (1939) | 237 |
| Highest Grade | S 8 |
| 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 Harold Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and father Louis Martin (~0.92 confidence) and mother Olie Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Louis Martin
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Olie Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Martin
Head · 1940 · age 28 · b. ~1912 · 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 — Ohio-County, Kentucky
Open full size
1940 US Federal Census — Ohio-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01346-00548)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth Cook | 10 | son | — | Kentucky |
| 2 | Elsa M. Cook | 10 | daughter | — | Kentucky |
| 3 | Samuel Cook | 8 | son | — | Kentucky |
| 4 | E. Henry Nabors | 65 | Head | Farmer | Kentucky |
| 5 | Ella Nabors | 56 | wife | — | Kentucky |
| 6 | Robert O. Nabors | 28 | Head | Farmer | Kentucky |
| 7 | Anna L. Nabors | 26 | wife | — | Kentucky |
| 8 | George D. Nabors | 5 | son | — | Kentucky |
| 9 | Martin O. Nabors | 72 | Head | Farmer | Kentucky |
| 10 | Henrietta Nabors | 70 | wife | — | Kentucky |
| 11 | Mamie Nabors | 45 | daughter | — | Kentucky |
| 12 | Harold Martin THIS PERSON | 28 | Head | Tractor Driver | Kentucky |
| 13 | Ernestine Martin | 23 | wife | — | Kentucky |
| 14 | Raymond L. Martin | 8 | son | — | Kentucky |
| 15 | Billy Martin | 5 | son | — | Kentucky |
| 16 | Doris Jean Martin | 2 | daughter | — | Kentucky |
| 17 | Edwin Martin | 0 | daughter | — | Kentucky |
| 18 | Porter Quisenberry | 25 | Head | Farmer | Kentucky |
| 19 | Christine Quisenberry | 24 | wife | — | Kentucky |
| 20 | Charles Quisenberry | 67 | Head | Farmer | Kentucky |
| 21 | Maggie Quisenberry | 51 | wife | — | Kentucky |
| 22 | William Quisenberry | 16 | son | — | Kentucky |
| 23 | Roy B. Quisenberry | 21 | Head | Proprietor | Kentucky |
| 24 | Madeline Quisenberry | 21 | wife | — | Kentucky |
| 25 | Bobby C. Quisenberry | 1 | son | — | Kentucky |
| 26 | Anna L. Quisenberry | 0 | daughter | — | Kentucky |
| 27 | William V. Renfrow | 66 | Head | Farmer | Kentucky |
| 28 | Julia O. Renfrow | 54 | wife | — | Kentucky |
| 29 | Martine Renfrow | 29 | daughter | Seamstress | Kentucky |
| 30 | Carolyn Renfrow | 27 | daughter | — | Kentucky |
| 31 | Helen J. Renfrow | 21 | daughter | — | Kentucky |
| 32 | William Renfrow | 19 | son | — | Kentucky |
| 33 | Joseph Renfrow | 17 | son | — | Kentucky |
| 34 | Harold Renfrow | 15 | son | — | Kentucky |
| 35 | Russell Wedding | 29 | Head | Farmer | Kentucky |
| 36 | Nina Wedding | 25 | wife | — | Kentucky |
| 37 | Cicero Magan | 78 | Head | — | Kentucky |
| 38 | H. Ellen Magan | 73 | wife | — | Kentucky |
| 39 | Lee Dallas Magan | 23 | son | Laborer | Kentucky |
| 40 | Elvis Magan | 56 | Head | Farmer | Kentucky |
Pedigree Summary
Harold
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)