DM
David Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this David Martin across the 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 9-person household.
Age 49
b. ~1891
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Martin |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 16 Beaver Creek |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | O |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Election District 16 Beaver Creek |
| Est. Birth Year | ~1891 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Louella Martin | Daughter | — | 14 | ~1926 |
| Gene Martin | Daughter | — | 12 | ~1928 |
| Vivian Martin | Daughter | — | 9 | ~1931 |
| Etta Martin | Daughter | — | 7 | ~1933 |
| David Martin | Head | — | 49 | ~1891 |
| David Martin | Son | — | 4 | ~1936 |
| Ray Martin | Son | — | ~1940 | |
| Daniel Martin | Son | — | 16 | ~1924 |
| Mary Martin | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Washington, Maryland
Head, age 39
Washington, Maryland · implied b. ~1891 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 33 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farm Laborer |
| Industry | Truck Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 700 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Head, age 49
Washington-County, Maryland · implied b. ~1891 — 9 household members
| Surname | Martin |
| Given Name | David J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 16 Beaver Creek |
| 1935 Residence (County) | Washington |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | O |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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.
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This person
Anchor record
David Martin
Head · 1940 · age 49 · b. ~1891 · Maryland
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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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00568)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Velma E. Wade | 16 | Daughter | Housework | Maryland |
| 2 | Doris A. Wade | 14 | Daughter | — | Maryland |
| 3 | James E. C. Wade | 10 | Son | — | Maryland |
| 4 | C. C. Louise Wade | 6 | Daughter | — | Maryland |
| 5 | David J. Martin THIS PERSON | 49 | Head | Farmer | Maryland |
| 6 | Mary R. Martin | 43 | Wife | Housewife | Maryland |
| 7 | Daniel S. Martin | 16 | Son | — | Maryland |
| 8 | Louella F. Martin | 14 | Daughter | Housework | Maryland |
| 9 | Gene T. Martin | 12 | Daughter | — | Maryland |
| 10 | Vivian D. Martin | 9 | Daughter | — | Maryland |
| 11 | Etta G. Martin | 7 | Daughter | — | Maryland |
| 12 | David J. Martin | 4 | Son | — | Maryland |
| 13 | Ray D. Martin | 0 | Son | — | Maryland |
| 14 | John Ridenour | 39 | Head | Laborer | Maryland |
| 15 | Nellie S. Ridenour | 64 | Wife | Housewife | Maryland |
| 16 | William Recker | 50 | Head | — | Maryland |
| 17 | Ruth J. Recker | 42 | Wife | — | Maryland |
| 18 | Albert L. Recker | 21 | Son | — | Maryland |
| 19 | Joseph E. Recker | 18 | Son | — | Maryland |
| 20 | Mildred R. Recker | 8 | Daughter | — | Maryland |
| 21 | James E. Yeakman | 67 | Head | Laborer | Maryland |
| 22 | Minnie M. Yeakman | 64 | Wife | Housewife | Pennsylvania |
| 23 | Katherine M. Shuttle | 55 | Head | Housewife | Maryland |
| 24 | Nancy K. Shuttle | 28 | Daughter | Clerk | West Virginia |
| 25 | James H. Shuttle | 20 | Son | Sheet Metal Worker | West Virginia |
| 26 | Adam E. Green | 48 | Head | 40 | Maryland |
| 27 | Lulu M. Green | 40 | Wife | — | Maryland |
| 28 | Pauline L. Green | 14 | Daughter | — | Maryland |
| 29 | Adam E. Jr. Green | 11 | Son | — | Maryland |
| 30 | Mary F. Green | 9 | Daughter | — | Maryland |
| 31 | Bella J. Green | 1 | Daughter | — | Maryland |
| 32 | Cora M. Green | 16 | Daughter | Housemaid | Maryland |
| 33 | Clifford E. Yeakle | 34 | Head | 76 | Maryland |
| 34 | Mildred A. Yeakle | 24 | Wife | Housewife | Maryland |
| 35 | Samuel L. Slick | 53 | Head | 42 | Maryland |
| 36 | Ralph R. Slick | 16 | Son | 72 | Maryland |
| 37 | William S. Slick | 15 | Son | — | Maryland |
| 38 | William J. Slick | 45 | Head | 11 | Maryland |
| 39 | Nina V. Slick | 39 | Wife | — | Maryland |
| 40 | D. Joseph Mortimer | 70 | Head | Judge | Maryland |
Related Census Records
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)