DM
Donald Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Ohio
Our Model Tree links this Donald Martin across the 1920, 1930 and 1940 US Censuses in Allen-County, Ohio (XGBoost, ~Confirmed), with identified parents Oaker & Oscar — first a head (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Ohio |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | LIMA CITY |
| 1935 Residence (County) | ALLEN |
| Additional Details | |
| Occupation | Laborer |
| Industry | Pipe Laying Project |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 238 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Laborer |
| Township / Ward | Lima City |
| Est. Birth Year | ~1918 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Martin | Head | — | 22 | ~1918 |
| Maxine Martin | Spouse | — | 20 | ~1920 |
| Donald Martin | Son | — | ~1940 |
Census Appearances
1920
Allen, Ohio
Son, age 1
Allen, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allen, Ohio
Son, age 12
Allen, Ohio · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allen-County, Ohio
Head, age 22
Allen-County, Ohio · implied b. ~1918 — 3 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | LIMA CITY |
| 1935 Residence (County) | ALLEN |
| Occupation | Laborer |
| Industry | Pipe Laying Project |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 238 |
| Highest Grade | Hs 1 |
| 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 Donald Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Oaker Martin (~0.92 confidence) and father Oscar Martin (~0.92 confidence) and mother Blanch Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oaker Martin
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Oscar Martin
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Blanch Martin
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Martin
Head · 1940 · age 22 · b. ~1918 · 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 — Allen-County, Ohio
Open full size
1940 US Federal Census — Allen-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03021-00552)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer Mckinney | 40 | Head | Body Assembly | Ohio |
| 2 | Ada Mckinney | 40 | Wife | — | Ohio |
| 3 | Eileen Mckinney | 13 | Daughter | — | Ohio |
| 4 | Ira Newton | 53 | Head | Janitor | Ohio |
| 5 | Gladys Newton | 46 | Wife | Feeder | Ohio |
| 6 | George Truesdale | 31 | Head | Radio Repair | Ohio |
| 7 | Ruth Truesdale | 29 | Wife | — | Ohio |
| 8 | Donald Martin THIS PERSON | 22 | Head | Laborer | Ohio |
| 9 | Maxine Martin | 20 | Wife | — | Pennsylvania |
| 10 | Donald Jr. Martin | 0 | Son | — | Ohio |
| 11 | Eugene H. Painter | 28 | Head | Pipe Fitter | Ohio |
| 12 | Chloe M. Painter | 50 | Wife | — | Ohio |
| 13 | Orville Painter | 22 | Son | Pipe Threader | Ohio |
| 14 | Edythe Painter | 19 | Daughter | Stenographer | Ohio |
| 15 | Rosemary Painter | 15 | Daughter | — | Ohio |
| 16 | Arthur Swickrath | 27 | Head | Paper Baler | Ohio |
| 17 | Maxine Swickrath | 18 | Wife | — | Ohio |
| 18 | Jean Ann Swickrath | 2 | Daughter | — | Ohio |
| 19 | Euela M. Swickrath | 1 | Daughter | — | Ohio |
| 20 | C. M. Adams | 62 | Head | Carpenter | Ohio |
| 21 | Ivan Riley | 58 | Head | Crossing Watchman | Ohio |
| 22 | Lena Riley | 56 | Wife | — | Ohio |
| 23 | Frank C. Armstrong | 52 | Head | Laborer | Ohio |
| 24 | Ruth Armstrong | 38 | Wife | — | Ohio |
| 25 | Charles Erickson | 30 | Head | Attendant | Pennsylvania |
| 26 | Ruth Erickson | 28 | Wife | — | Ohio |
| 27 | George Erickson | 6 | Son | — | Ohio |
| 28 | Mary Erickson | 5 | Daughter | — | Ohio |
| 29 | William Crumrine | 28 | Head | Iron Tank Builder | Ohio |
| 30 | Carl Hentze | 51 | Head | — | Ohio |
| 31 | Jacob Schneider | 42 | Head | Truck Driver | Russia |
| 32 | Sylvia Schneider | 39 | Wife | — | Russia |
| 33 | Phillip Schneider | 16 | Son | — | Ohio |
| 34 | Janice Schneider | 12 | Daughter | — | Ohio |
| 35 | Frank Morger | 44 | Head | Inspector | Illinois |
| 36 | Lena Morger | 40 | Wife | — | Illinois |
| 37 | Arlene Morger | 12 | Daughter | — | Illinois |
| 38 | Richard Morger | 7 | Son | — | Illinois |
| 39 | Peggy Morger | 5 | Daughter | — | Illinois |
| 40 | W. F. Ledwedge | 54 | Head | Locomotive Engineer | Ohio |
Pedigree Summary
Donald
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)