DM
Donald Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Donald Martin across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Fred & Fred — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo |
| Est. Birth Year | ~1920 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Fred Martin | Head | — | 49 | ~1891 |
| Veronica Martin | Daughter | — | 17 | ~1923 |
| P Martin | Son | — | 22 | ~1918 |
| Anna Martin | Spouse | — | 47 | ~1893 |
| Catherine Martin | Daughter | — | 18 | ~1922 |
| Donald Martin | Son | — | 20 | ~1920 |
| Rita Martin | Daughter | — | 15 | ~1925 |
Census Appearances
1920
Lucas, Ohio
Son, age
Lucas, Ohio · implied b. ~1920 — 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 | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Son, age 10
Lucas, Ohio · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 20
Lucas-County, Ohio · implied b. ~1920 — 7 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Hours Worked | 0 |
| Highest Grade | C 2 |
| 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 Fred Martin (~0.92 confidence) and father Fred Martin (~0.92 confidence) and father Fred Martin (~0.92 confidence) and mother Anna Martin (~0.92 confidence) and mother Ava Martin (~0.92 confidence) and mother Aulla Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Martin
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Fred Martin
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Fred Martin
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Anna Martin
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ava Martin
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Aulla Martin
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Martin
Son · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Rita Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Veronica Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
P Martin
Sibling · 1940 · age 22
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03261-00508)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 3 | Mary E. Russell | 57 | Head | Teacher | Ohio |
| 4 | Morris Jensen | 57 | Head | Proprietor | France |
| 5 | Evelyn Jensen | 56 | Wife | Assistant | Ohio |
| 6 | Pauline A. Brandt | 27 | Maid | Housework | Ohio |
| 7 | Phyllis Woodbury | 34 | Daughter | — | Michigan |
| 8 | Hazel Wendell | 58 | Sister | Art Director | Michigan |
| 9 | James W. Hunt | 39 | Head | Salesman | Kentucky |
| 10 | Margaret Hunt | 34 | Wife | Assistant | Ohio |
| 11 | J. Robert Smith | 38 | Head | Purchasing Agent | Indiana |
| 12 | Alberta A. Smith | 34 | Wife | — | Michigan |
| 13 | Jack Smith | 9 | Son | — | Michigan |
| 14 | Sally Smith | 7 | Daughter | — | Michigan |
| 15 | Timothy Smith | 6 | Son | — | Michigan |
| 16 | Bertha Smith | 57 | Mother-in-law | — | Michigan |
| 17 | Lucy Timmons | 22 | Maid | General Housework | Ohio |
| 18 | Janet Hammond | 39 | Head | Bookkeeper | New York |
| 19 | Richard W. Ricker | None | Lodger | — | — |
| 20 | Thomas Curie | 60 | Head | Printing Plant Manager | Ohio |
| 21 | Evelyn Curie | 33 | Daughter | Housework | Ohio |
| 22 | Thelma Curie | 27 | Daughter | Buyer | Ohio |
| 23 | Rosetta Curie | 25 | Daughter | Stenographer | Ohio |
| 24 | Lazarus Thomas | 45 | Head | Shoe Repairer | Turkey |
| 25 | Ida Thomas | 44 | Wife | Music Teacher | Ohio |
| 26 | Lazarus Thomas | 14 | Son | — | Ohio |
| 27 | Martha Thomas | 13 | Daughter | — | Ohio |
| 28 | Ida Thomas | 9 | Daughter | — | Ohio |
| 29 | Esther Thomas | 7 | Daughter | — | Ohio |
| 30 | George Love | 44 | Head | Own Bank | Massachusetts |
| 31 | Fred Hendricks | 46 | Head | Sales Worker | Wisconsin |
| 32 | Walter Clayton | 63 | Head | Greenhouse | Michigan |
| 33 | Mamie Clayton | 64 | Wife | — | Ohio |
| 34 | Fred J. Martin | 49 | Head | Container Manufacture | Ohio |
| 35 | Anna Agnes Martin | 47 | Wife | — | Michigan |
| 36 | P. Benedict Martin | 22 | Son | Division Manager | Ohio |
| 37 | Donald Martin THIS PERSON | 20 | Son | — | Ohio |
| 38 | Catherine Martin | 18 | Daughter | Clerical Worker | Ohio |
| 39 | Veronica Martin | 17 | Daughter | — | Ohio |
| 40 | Rita Martin | 15 | Daughter | — | Ohio |
Pedigree Summary
Donald + 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)