DM
David Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Door-County, Wisconsin
Our Model Tree links this David Martin across the 1930 and 1940 US Censuses in Door-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 11-person household.
Age 39
b. ~1901
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Door-County, Wisconsin |
| Surname | Martin |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Sturgeon Bay |
| 1935 Residence (County) | Door |
| Additional Details | |
| Occupation | Steel Fitter |
| Industry | Marine Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1855 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Steel Fitter |
| Township / Ward | Sturgeon Bay |
| Est. Birth Year | ~1901 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Maurene Martin | Daughter | — | 1 | ~1939 |
| David Martin | Head | — | 39 | ~1901 |
| Isabelle La Plante | Other | — | 70 | ~1870 |
| Kent Martin | Son | — | 14 | ~1926 |
| Richard Martin | Son | — | 15 | ~1925 |
| John Martin | Son | — | 12 | ~1928 |
| James Martin | Son | — | 2 | ~1938 |
| Gregory Martin | Son | — | 4 | ~1936 |
| Maynard Martin | Son | — | 13 | ~1927 |
| David Martin | Son | — | 16 | ~1924 |
| May Martin | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Door, Wisconsin
Head, age 29
Door, Wisconsin · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 21 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Steel worker |
| Industry | Ship yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Door-County, Wisconsin
Head, age 39
Door-County, Wisconsin · implied b. ~1901 — 11 household members
| Surname | Martin |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Sturgeon Bay |
| 1935 Residence (County) | Door |
| Occupation | Steel Fitter |
| Industry | Marine Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1855 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 David Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Martin
Head · 1940 · age 39 · b. ~1901 · Wisconsin
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Door-County, Wisconsin
Open full size
1940 US Federal Census — Door-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04474-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louis Hengertner | 53 | Head | Marine Engineer | Illinois |
| 42 | Martha Hengertner | 47 | Wife | — | Wisconsin |
| 43 | Gordon Hengertner | 22 | Son | Sailor | Wisconsin |
| 44 | Norbert Hengertner | 20 | Son | — | Wisconsin |
| 45 | Morris Oenes | 31 | Head | Laborer | Wisconsin |
| 46 | Marie Oenes | 24 | Wife | Saleslady | Wisconsin |
| 47 | Patricia Oenes | 2 | Daughter | — | Wisconsin |
| 48 | Clarence Washburn | 47 | Head | Laborer | Wisconsin |
| 49 | Rose Washburn | 48 | Wife | — | Wisconsin |
| 50 | Milton Washburn | 23 | Son | Laborer | Wisconsin |
| 51 | Robert Washburn | 18 | Son | — | Wisconsin |
| 52 | June Washburn | 16 | Daughter | — | Wisconsin |
| 53 | Lester Birmingham | 60 | Head | Field Manager | Wisconsin |
| 54 | Lydia Birmingham | 71 | Wife | — | Wisconsin |
| 55 | Harriett Karste | 74 | Sister-in-law | — | Wisconsin |
| 56 | Herman Brandt | 43 | Head | Salesman | Wisconsin |
| 57 | Eula Brandt | 40 | Wife | — | Wisconsin |
| 58 | Ardyth Brandt | 18 | Daughter | — | Wisconsin |
| 59 | John Irvine | 23 | Son-in-law | Supervisor | Wisconsin |
| 60 | Olive Irvine | 20 | Daughter | — | Wisconsin |
| 61 | Esther Robillard | 50 | Head | Laborer | Wisconsin |
| 62 | Donna Bell Robillard | 11 | Daughter | — | Wisconsin |
| 63 | Walter Urdahl | 33 | Head | City Mail Carrier | Wisconsin |
| 64 | Elizabeth Urdahl | 26 | Wife | — | Wisconsin |
| 65 | Mary Urdahl | 5 | Daughter | — | Wisconsin |
| 66 | John Urdahl | 2 | Son | — | Wisconsin |
| 67 | Mary Urdahl | 73 | Mother | — | Finland |
| 68 | David Martin THIS PERSON | 39 | Head | Steel Fitter | Wisconsin |
| 69 | May Martin | 38 | Wife | — | Wisconsin |
| 70 | David Jr. Martin | 16 | Son | Messenger | Wisconsin |
| 71 | Richard Martin | 15 | Son | — | Wisconsin |
| 72 | Kent Martin | 14 | Son | — | Wisconsin |
| 73 | Maynard Martin | 13 | Son | — | Wisconsin |
| 74 | John Martin | 12 | Son | — | Wisconsin |
| 75 | Gregory Martin | 4 | Son | — | Wisconsin |
| 76 | James Martin | 2 | Son | — | Wisconsin |
| 77 | Maurene Martin | 1 | Daughter | — | Wisconsin |
| 78 | Isabelle La Plante | 70 | Mother-in-law | — | Wisconsin |
| 79 | Marvin De Foe | 37 | Head | Crane Operator | Wisconsin |
| 80 | Minnie De Foe | 40 | Wife | — | Wisconsin |
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)