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Eugene Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ottawa-County, Ohio
Our Model Tree links this Eugene Martin across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Ohio (XGBoost, ~Confirmed), with identified parents Eugene & George — first a son (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Ohio |
| Surname | Martin |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | Ottawa |
| Additional Details | |
| Occupation | Clerk |
| Industry | Railway Mail Service |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 2450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerk |
| Township / Ward | Clay Township |
| Est. Birth Year | ~1904 |
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 Eugene | Age | Birth yr |
|---|---|---|---|---|
| Emile Martin | Son | — | 34 | ~1906 |
| Eugene Martin | Son | — | 36 | ~1904 |
| Eugene Martin | Head | — | 72 | ~1868 |
| Juanita Martin | Other | — | 20 | ~1920 |
| Isabell Martin | Daughter | — | 37 | ~1903 |
| Caroline Martin | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Ottawa, Ohio
Son, age 16
Ottawa, Ohio · implied b. ~1904 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Eugene |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | France |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ottawa, Ohio
Son, age 26
Ottawa, Ohio · implied b. ~1904 — 17 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | France |
| Mother's Birthplace | Ohio |
| Occupation | Mail Clerk |
| Industry | New York Central Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ottawa-County, Ohio
Son, age 36
Ottawa-County, Ohio · implied b. ~1904 — 6 household members
| Surname | Martin |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | Ottawa |
| Occupation | Clerk |
| Industry | Railway Mail Service |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 2450 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Eugene Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Eugene Martin (~0.92 confidence) and father George Thomas (~0.92 confidence) and father Louis Martin (~0.92 confidence) and mother Caroline Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Eugene Martin
b. ~1868
Source father
● Household
· direct · ~0.92
Father
George Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Louis Martin
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Caroline Martin
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Eugene Martin
Son · 1940 · age 36 · b. ~1904 · Ohio
★ You are viewing this record
Sibling
Emile Martin
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabell Martin
Sibling · 1940 · age 37
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 — Ottawa-County, Ohio
Open full size
1940 US Federal Census — Ottawa-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03125-00230)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Viola Manary | 33 | Wife | — | Ohio |
| 42 | Lawrence E. Martin | 40 | Head | Farmer | Ohio |
| 43 | Doris A. Martin | 35 | Wife | School Teacher | Ohio |
| 44 | Eugene Martin | 72 | Head | — | France |
| 45 | Caroline Martin | 70 | Wife | — | Ohio |
| 46 | Isabell Martin | 37 | Daughter | — | Ohio |
| 47 | Eugene Martin THIS PERSON | 36 | Son | Clerk | Ohio |
| 48 | Emile Martin | 34 | Son | Farm Operator | Ohio |
| 49 | Juanita Martin | 20 | Daughter-in-law | — | Michigan |
| 50 | Charles Hardelbrink | 60 | Head | Farm Owner | Ohio |
| 51 | Julia Hardelbrink | 54 | Wife | — | Ohio |
| 52 | Viola Hardelbrink | 28 | Daughter | — | Ohio |
| 53 | Edgar Hardelbrink | 22 | Son | Farm Laborer | Ohio |
| 54 | Louis Hardelbrink | 64 | Head | Farm Owner | Ohio |
| 55 | Louisa Hardelbrink | 58 | Wife | — | Ohio |
| 56 | Martin Bitter | 32 | Son-in-law | Farm Laborer | Ohio |
| 57 | Laura Bitter | 31 | Daughter | — | Ohio |
| 58 | Paul Bitter | 6 | Grandson | — | Ohio |
| 59 | Carol Bitter | 5 | Granddaughter | — | Ohio |
| 60 | Willis Bitter | 12 | Grandson | — | Ohio |
| 61 | Henry Hardelbrink | 67 | Brother | Farm Laborer | Ohio |
| 62 | Charles Emch | 51 | Head | Farm Owner | Ohio |
| 63 | Minnie Emch | 51 | Wife | — | Ohio |
| 64 | Harry Bush | 17 | Hired hand | Farm Laborer | Ohio |
| 65 | John A. Miller | 62 | Head | Farm Owner | North Carolina |
| 66 | Mabel I. Miller | 56 | Wife | — | Ohio |
| 67 | Elmer Roman | 19 | Hired hand | Farm Laborer | Ohio |
| 68 | Louis Martin | 61 | Head | Farmer | France |
| 69 | Joseph Martin | 25 | Son | Farm Laborer | Ohio |
| 70 | Louis Sanders | 51 | Head | Farm Operator | Ohio |
| 71 | Lucy Sanders | 44 | Wife | — | Ohio |
| 72 | Louis Sanders | 22 | Son | Farm Laborer | Ohio |
| 73 | Ralph Sanders | 21 | Son | Farm Laborer | Ohio |
| 74 | Lowell Sanders | 19 | Son | Farm Laborer | Ohio |
| 75 | Alice Sanders | 15 | Daughter | — | Ohio |
| 76 | Anna Sanders | 73 | Mother | — | Ohio |
| 77 | Fred E. Yockerman | 56 | Head | Farm Operator | Germany |
| 78 | Emma Yockerman | 47 | Wife | — | Ohio |
| 79 | Robert Yockerman | 21 | Son | Farm Laborer | Ohio |
| 80 | Gordon Yockerman | 5 | Son | — | Ohio |
Pedigree Summary
Eugene + 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)