LM
Lawrence Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Indiana
Our Model Tree links this Lawrence Martin across the 1910, 1920, 1930 and 1940 US Censuses in Washington-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Indiana |
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Salem City |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Salem City |
| Est. Birth Year | ~1883 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Martin | Head | — | 57 | ~1883 |
| David Wilson | Other | — | 5 | ~1935 |
| Louise Wilson | Daughter | — | 22 | ~1918 |
| Sadie Martin | Spouse | — | 55 | ~1885 |
Census Appearances
1910
Washington, Indiana
Head, age 27
Washington, Indiana · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Indiana |
| Years Married | 6 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Mail Carrier |
| Industry | Rural |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Washington, Indiana
Head, age 36
Washington, Indiana · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Proprietor |
| Industry | Garage |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Year of Naturalization | M |
| Birthplace (normalized) | indiana |
1930
Washington, Indiana
Head, age 47
Washington, Indiana · implied b. ~1883 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 20 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Proprietor |
| Industry | Garage |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2,500 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Washington-County, Indiana
Head, age 57
Washington-County, Indiana · implied b. ~1883 — 4 household members
| Surname | Martin |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Salem City |
| 1935 Residence (County) | Washington |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Lawrence Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Lawrence Martin
Head · 1940 · age 57 · b. ~1883 · Indiana
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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, Indiana
Open full size
1940 US Federal Census — Washington-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01107-00977)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maxine Baker | 14 | Daughter | — | Indiana |
| 42 | Susie Amey | 55 | Head | — | Indiana |
| 43 | Margaret Amey | 20 | Daughter | Operator | Indiana |
| 44 | Anabell Amey | 13 | Daughter | — | Indiana |
| 45 | Roy Pitts | 44 | Head | Operator | Indiana |
| 46 | Verna Pitts | 41 | Wife | — | Indiana |
| 47 | Betty Pitts | 18 | Daughter | — | Indiana |
| 48 | Martha Hanger | 80 | Head | — | Indiana |
| 49 | Frank Hanger | 50 | Son | — | Indiana |
| 50 | Dell Strain | 67 | Head | Engineer | Indiana |
| 51 | Mabel Strain | 51 | Wife | — | Indiana |
| 52 | Arthur Strain | 23 | Son | Laborer | Indiana |
| 53 | Julia Strain | 19 | Daughter | — | Indiana |
| 54 | Frank Strain | 10 | Son | — | Indiana |
| 55 | Geneva Neal | 23 | Niece | Laborer | Illinois |
| 56 | Edith Smith | 66 | Head | — | Indiana |
| 57 | Cora Helen | 64 | Housekeeper | Housekeeper | Indiana |
| 58 | Henry Smith | 61 | Lodger | Printer Publisher | Indiana |
| 59 | Helen Trinkle | 35 | Head | — | Indiana |
| 60 | Eleanor Mccoskey | 13 | Daughter | — | Indiana |
| 61 | Harold Mccoskey | 12 | Son | — | Indiana |
| 62 | Anna Lou Mccoskey | 10 | Daughter | — | Indiana |
| 63 | Frances Finkle | 20 | Stepson | Laborer | Indiana |
| 64 | Robert Finkle | 16 | Stepson | — | Indiana |
| 65 | Lawrence Martin THIS PERSON | 57 | Head | — | Indiana |
| 66 | Sadie M. Martin | 55 | Wife | — | Indiana |
| 67 | Louise Wilson | 22 | Daughter | — | Indiana |
| 68 | David L. Wilson | 5 | Grandson | — | Indiana |
| 69 | Mary Knight | 53 | Head | — | Indiana |
| 70 | James Knight | 20 | Son | — | Indiana |
| 71 | Elizabeth Knight | 12 | Daughter | — | Indiana |
| 72 | Vellin Roper | 24 | Son-in-law | Laborer | Indiana |
| 73 | Opal Roper | 24 | Daughter | — | Indiana |
| 74 | Betty Jo Roper | 5 | Granddaughter | — | Indiana |
| 75 | Charles Weller | 65 | Roomer | — | Indiana |
| 76 | Dora Etzler | 53 | Head | Bookkeeper | Indiana |
| 77 | Willis Mcclellan | 67 | Head | — | Indiana |
| 78 | Delbert Cloud | 53 | Head | Laborer | Indiana |
| 79 | Maurice Sturgeon | 25 | Head | Laborer | Indiana |
| 80 | Louise Sturgeon | 18 | Wife | — | Indiana |
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)