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Harold Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vanderburgh-County, Indiana
Our Model Tree links this Harold Martin across the 1910, 1920, 1930 and 1940 US Censuses in Vanderburgh-County, Indiana (XGBoost, ~Confirmed), with identified parents Henry — first a head (b.~1895), then head of a 3-person household.
Age 45
b. ~1895
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Vanderburgh-County, Indiana |
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Armstrong TWP |
| 1935 Residence (County) | Vanderburgh |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Farmer |
| Township / Ward | Armstrong Twp |
| Est. Birth Year | ~1895 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Sylvan Martin | Son | — | 20 | ~1920 |
| Pearl Martin | Spouse | — | 44 | ~1896 |
| Harold Martin | Head | — | 45 | ~1895 |
Census Appearances
1910
Posey, Indiana
Son, age 15
Posey, Indiana · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Posey, Indiana
Head, age 25
Posey, Indiana · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Posey, Indiana
Head, age 35
Posey, Indiana · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Radio Set | Yes |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vanderburgh-County, Indiana
Head, age 45
Vanderburgh-County, Indiana · implied b. ~1895 — 3 household members
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Armstrong TWP |
| 1935 Residence (County) | Vanderburgh |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Martin (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Martin
b. ~1849
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Martin
Head · 1940 · age 45 · b. ~1895 · Indiana
★ 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 — Vanderburgh-County, Indiana
Open full size
1940 US Federal Census — Vanderburgh-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01101-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Noelle | 49 | Wife | — | Indiana |
| 2 | Oscar Zeonafaton|Zeonafator | 27 | Lodger | Laborer | Indiana |
| 3 | Oda Calvert | 37 | Head | Farmer | Indiana |
| 4 | Carl Hatcher | 32 | Lodger | Laborer | Kentucky |
| 5 | Sarah Hatcher | 31 | Lodger | — | Kentucky |
| 6 | Carl Baumgart | 29 | Head | Farmer | Illinois |
| 7 | Mildred Baumgart | 26 | Wife | — | Indiana |
| 8 | Donald E. Baumgart | 1 | Son | — | Illinois |
| 9 | Ralph D. Warren | 31 | Head | Maintenance | Indiana |
| 10 | Ellen Warren | 29 | Wife | — | Kentucky |
| 11 | Jerry Warren | 4 | Son | — | Indiana |
| 12 | Jessie Warren | 4 | Daughter | — | Indiana |
| 13 | Phyllis Warren | 2 | Daughter | — | Indiana |
| 14 | Anna Simon | 18 | Wife | — | Indiana |
| 15 | Urban Simon | 21 | Head | Checker | Indiana |
| 16 | Harold Martin THIS PERSON | 45 | Head | Farmer | Indiana |
| 17 | Pearl Martin | 44 | Wife | — | Illinois |
| 18 | Sylvan Martin | 20 | Son | Laborer | Indiana |
| 19 | John Simon | 47 | Head | Farmer | Indiana |
| 20 | Theresa Simon | 44 | Wife | — | Indiana |
| 21 | Wilfred Simon | 18 | Son | Laborer | Indiana |
| 22 | Rosa Simon | 16 | Daughter | Housekeeper | Indiana |
| 23 | Ivan Simon | 13 | Son | — | Indiana |
| 24 | Earl Simon | 8 | Son | — | Indiana |
| 25 | Mary Happe | 73 | Mother-in-law | — | Indiana |
| 26 | George Martin | 40 | Head | Farmer | Indiana |
| 27 | Mabel Martin | 35 | Wife | — | Indiana |
| 28 | Robert Martin | 14 | Son | — | Indiana |
| 29 | Francis Martin | 12 | Son | — | Indiana |
| 30 | Edson Boyle | 84 | Head | — | Indiana |
| 31 | Roswell Boyle | 57 | Son | Laborer | Indiana |
| 32 | Bernice Boyle | 49 | Daughter | — | Indiana |
| 33 | Baxter Boyle | 47 | Son | Teacher | Indiana |
| 34 | Elizabeth Boyle | 45 | Daughter | — | Indiana |
| 35 | Maco Boyle | 36 | Daughter | — | Indiana |
| 36 | Wilbert Cheutle|Chentle | 56 | Head | Farmer | Indiana |
| 37 | Grace Cheutle|Chentle | 53 | Wife | — | Indiana |
| 38 | Doyle Cheutle|Chentle | 12 | Son | — | Indiana |
| 39 | Clint Gansman | 56 | Head | Farmer | Indiana |
| 40 | Joseph Gansman | 25 | Son | Laborer | Indiana |
Related Census Records
Pedigree Summary
Harold
Gen 1 · 1 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)