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Marion Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Brown-County, Ohio
Our Model Tree links this Marion Martin across the 1920, 1930 and 1940 US Censuses in Brown-County, Ohio (XGBoost, ~Confirmed), with identified parents Charles & Charlie — first a son (b.~1908), then head of a 7-person household.
Age 32
b. ~1908
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Ohio |
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Byrd Twp |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 452 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farmer |
| Township / Ward | Byrd Twp |
| Est. Birth Year | ~1908 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Isabel Martin | Daughter | — | 24 | ~1916 |
| Charlie Martin | Head | — | 70 | ~1870 |
| Marion Martin | Son | — | 32 | ~1908 |
| Donald Martin | Son | — | 26 | ~1914 |
| Wilbur Martin | Son | — | 30 | ~1910 |
| Nora Martin | Spouse | — | 60 | ~1880 |
| Joanna Martin | Daughter | — | 22 | ~1918 |
Census Appearances
1920
Brown, Ohio
Son, age 11
Brown, Ohio · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marian |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Brown, Ohio
Son, age 21
Brown, Ohio · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Brown-County, Ohio
Son, age 32
Brown-County, Ohio · implied b. ~1908 — 7 household members
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Byrd Twp |
| 1935 Residence (County) | Brown |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 452 |
| Highest Grade | 8 |
| 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 Marion Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Martin (~0.92 confidence) and father Charlie Martin (~0.92 confidence) and father Charlie Martin (~0.92 confidence) and mother Clara Martin (~0.92 confidence) and mother Nora Martin (~0.92 confidence) and mother Nora Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Martin
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Charlie Martin
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Charlie Martin
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Clara Martin
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Nora Martin
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Nora Martin
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Martin
Son · 1940 · age 32 · b. ~1908 · Ohio
★ You are viewing this record
Sibling
Joanna Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Martin
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabel Martin
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Martin
Sibling · 1940 · age 30
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 — Brown-County, Ohio
Open full size
1940 US Federal Census — Brown-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03031-00018)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cora Holton | 48 | Wife | — | Ohio |
| 42 | Donald Holton | 17 | Son | — | Ohio |
| 43 | Ruth Holton | 9 | Daughter | — | Ohio |
| 44 | Evelyn Holton | 5 | Daughter | — | Ohio |
| 45 | Charlie C. Calvert | 66 | Head | Farmer | Kentucky |
| 46 | Ina Calvert | 61 | Wife | — | Kentucky |
| 47 | Sally Calvert | 28 | Daughter | — | Kentucky |
| 48 | James Mchenry | 44 | Head | Farmer | Ohio |
| 49 | Jessie Mchenry | 44 | Wife | — | Kentucky |
| 50 | Everet Gatton | 18 | Son | Helper | Kentucky |
| 51 | Sarah Baird | 75 | Head | — | Ohio |
| 52 | Frank Baird | 31 | Son | School Teacher | Ohio |
| 53 | Blanchard Baird | 37 | Son | — | Ohio |
| 54 | Geneva Baird | 26 | Daughter-in-law | — | Ohio |
| 55 | Rebecca Baird | 4 | Daughter | — | Ohio |
| 56 | Kenneth Baird | 1 | Grandson | — | Ohio |
| 57 | Charles Baird | 42 | Head | Farmer | Ohio |
| 58 | Lydia Baird | 44 | Wife | — | Ohio |
| 59 | James Baird | 16 | Son | — | Ohio |
| 60 | William Baird | 10 | Son | — | Ohio |
| 61 | Harry Harmon | 24 | Lodger | Farmer | Ohio |
| 62 | Charlie Martin | 70 | Head | Farmer | Ohio |
| 63 | Nora Martin | 60 | Wife | — | Ohio |
| 64 | Marion Martin THIS PERSON | 32 | Son | Farmer | Ohio |
| 65 | Wilbur Martin | 30 | Son | Farm Helper | Ohio |
| 66 | Donald Martin | 26 | Son | Clerk Retail | Ohio |
| 67 | Isabel Martin | 24 | Daughter | — | Ohio |
| 68 | Joanna Martin | 22 | Daughter | — | Ohio |
| 69 | Lewis Herman | 55 | Head | Farmer | Ohio |
| 70 | Ethel Herman | 48 | Wife | — | Ohio |
| 71 | John D. Rice | 59 | Head | Farmer | Kentucky |
| 72 | Jane Rice | 57 | Wife | — | Kentucky |
| 73 | Carl Rice | 19 | Son | — | Kentucky |
| 74 | Virginia Rice | 14 | Daughter | — | Kentucky |
| 75 | A. C. Sowers | 58 | Head | Farmer | Ohio |
| 76 | Bertha Sowers | 60 | Wife | — | Ohio |
| 77 | George Ricketts | 39 | Head | Farmer | Kentucky |
| 78 | Mary Ricketts | 45 | Wife | — | Kentucky |
| 79 | James Ricketts | 7 | Son | — | Kentucky |
| 80 | Mont Arnold | 69 | Brother-in-law | — | Kentucky |
Pedigree Summary
Marion + 4 siblings
Gen 1 · 6 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)