HM
Harold Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Putnam-County, Ohio
Our Model Tree links this Harold Martin across the 1910, 1920, 1930 and 1940 US Censuses in Putnam-County, Ohio (XGBoost, ~Confirmed), with identified parents Otto & Ida — first a head (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Putnam-County, Ohio |
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Putnam |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pickle Plant |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 350 |
| Highest Grade | H-2 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Van Buren Twp |
| Est. Birth Year | ~1906 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Harold Martin | Head | — | 34 | ~1906 |
| Marilyn Martin | Daughter | — | 6 | ~1934 |
| James Martin | Son | — | 9 | ~1931 |
| Donald Martin | Son | — | 7 | ~1933 |
| Alice Martin | Spouse | — | 30 | ~1910 |
Census Appearances
1910
Putnam, Ohio
Son, age 4
Putnam, Ohio · implied b. ~1906 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Putnam, Ohio
Son, age 14
Putnam, Ohio · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Putnam, Ohio
Son, age 24
Putnam, Ohio · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Putnam-County, Ohio
Head, age 34
Putnam-County, Ohio · implied b. ~1906 — 5 household members
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Putnam |
| Occupation | Laborer |
| Industry | Pickle Plant |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 350 |
| Highest Grade | H-2 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Otto Martin (~0.92 confidence) and mother Ida Martin (~0.92 confidence) and father Joseph Martin (~0.92 confidence) and mother Christina Martin (~0.92 confidence) and mother Christine Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Otto Martin
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Ida Martin
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Joseph Martin
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Christina Martin
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Christine Martin
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Martin
Head · 1940 · age 34 · b. ~1906 · Ohio
★ 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 — Putnam-County, Ohio
Open full size
1940 US Federal Census — Putnam-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03133-00705)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred V. Moorman | 32 | Son | Farm Labor | Ohio |
| 2 | Alvina Moorman | 24 | Daughter | — | Ohio |
| 3 | Leonard Moorman | 22 | Son | Farm Labor | Ohio |
| 4 | Hubert Schroeder | 39 | Head | Farmer | Ohio |
| 5 | Loretta Schroeder | 34 | Wife | — | Ohio |
| 6 | Thomas Schroeder | 3 | Son | — | Ohio |
| 7 | Paul Schroeder | 1 | Son | — | Ohio |
| 8 | Catherine Schroeder | 73 | Mother | — | Ohio |
| 9 | Gertrude Schroeder | 40 | Sister | — | Ohio |
| 10 | Jerome Niese | 48 | Head | Farmer | Ohio |
| 11 | Theresa Niese | 47 | Wife | — | Ohio |
| 12 | Louise Niese | 19 | Daughter | — | Ohio |
| 13 | Agnes Niese | 17 | Daughter | — | Ohio |
| 14 | Edwin Selhorst | 33 | Head | Owner Farmer | Ohio |
| 15 | Margaret Selhorst | 32 | Wife | — | Ohio |
| 16 | Betty Jane Selhorst | 9 | Daughter | — | Ohio |
| 17 | Evelyn Selhorst | 8 | Daughter | — | Ohio |
| 18 | William Selhorst | 7 | Son | — | Ohio |
| 19 | Robert Selhorst | 5 | Son | — | Ohio |
| 20 | Guy Giesken | 44 | Head | Owner Farmer | Ohio |
| 21 | Bertha Giesken | 45 | Wife | — | Ohio |
| 22 | Robert Giesken | 18 | Son | Farm Labor | Ohio |
| 23 | Wayne Giesken | 15 | Son | — | Ohio |
| 24 | Lloyd Giesken | 12 | Son | — | Ohio |
| 25 | Betty Lou Giesken | 11 | Daughter | — | Ohio |
| 26 | Sylvester Ellerbrock | 48 | Head | Owner Farmer | Ohio |
| 27 | Edith Ellerbrock | 41 | Wife | — | Ohio |
| 28 | Paul Ellerbrock | 16 | Son | Farm Labor | Ohio |
| 29 | Elmer Ellerbrock | 14 | Son | — | Ohio |
| 30 | Marie Ellerbrock | 12 | Daughter | — | Ohio |
| 31 | Alma Jean Ellerbrock | 10 | Daughter | — | Ohio |
| 32 | Helen B. Ellerbrock | 7 | Daughter | — | Ohio |
| 33 | Anna Mae Ellerbrock | 2 | Daughter | — | Ohio |
| 34 | B. F. Myers | 67 | Head | Owner Farmer | Ohio |
| 35 | Anna Myers | 66 | Wife | — | Ohio |
| 36 | Harold Martin THIS PERSON | 34 | Head | Laborer | Ohio |
| 37 | Alice Martin | 30 | Wife | — | Ohio |
| 38 | James K. Martin | 9 | Son | — | Ohio |
| 39 | Donald R. Martin | 7 | Son | — | Ohio |
| 40 | Marilyn Martin | 6 | Daughter | — | Ohio |
Related Census Records
Pedigree Summary
Harold
Gen 1 · 5 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)