WM
Walter Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Smith-County, Kansas
Our Model Tree links this Walter Martin across the 1910, 1920, 1930 and 1940 US Censuses in Smith-County, Kansas (XGBoost, ~Confirmed), with identified parents T & Tyrus — first a head (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Smith-County, Kansas |
| Surname | Martin |
| Given Name | Walter J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Harlan Township |
| 1935 Residence (County) | Smith |
| Additional Details | |
| Occupation | Janitor |
| Industry | High School |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Janitor |
| Township / Ward | Harlan Township |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Walter | Age | Birth yr |
|---|---|---|---|---|
| Arlene Martin | Daughter | — | 14 | ~1926 |
| Walter Martin | Head | — | 49 | ~1891 |
| Darva Martin | Son | — | 6 | ~1934 |
| Arva Martin | Son | — | 11 | ~1929 |
| Stella Martin | Spouse | — | 32 | ~1908 |
Census Appearances
1910
Cloud, Kansas
Son, age 18
Cloud, Kansas · implied b. ~1892 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Farm labour |
| Industry | Home farm |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1920
Smith, Kansas
Son, age 27
Smith, Kansas · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Walter H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Farm laborer |
| Industry | Working out |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Smith, Kansas
Head, age 39
Smith, Kansas · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Walter C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 26 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | 8104 W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 500 |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Smith-County, Kansas
Head, age 49
Smith-County, Kansas · implied b. ~1891 — 5 household members
| Surname | Martin |
| Given Name | Walter J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Harlan Township |
| 1935 Residence (County) | Smith |
| Occupation | Janitor |
| Industry | High School |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Walter Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father T Martin (~0.92 confidence) and father Tyrus Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
T Martin
b. ~1857
Source father
● Household
· direct · ~0.92
Father
Tyrus Martin
b. ~1857
Source father
● Household
· direct · ~0.92
This person
Anchor record
Walter Martin
Head · 1940 · age 49 · b. ~1891 · Kansas
★ 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 — Smith-County, Kansas
Open full size
1940 US Federal Census — Smith-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01262-00500)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olean O. Nichols | 32 | Head | Barber | Kansas |
| 2 | Ruth Nichols | 31 | Wife | — | Kansas |
| 3 | Mary Lou Nichols | 12 | Daughter | — | Kansas |
| 4 | Betty June Nichols | 11 | Daughter | — | Kansas |
| 5 | Walter J. Martin THIS PERSON | 49 | Head | Janitor | Colorado |
| 6 | Stella Martin | 32 | Wife | — | Kansas |
| 7 | Arlene Martin | 14 | Daughter | — | Kansas |
| 8 | Arva Martin | 11 | Son | — | Kansas |
| 9 | Darva Martin | 6 | Son | — | Kansas |
| 10 | Otis R. Conn | 58 | Head | Laborer | Iowa |
| 11 | Mattie Conn | 52 | Wife | — | Iowa |
| 12 | May Conn | 19 | Son | Truck Driver | Kansas |
| 13 | Kenneth Conn | 13 | Son | — | Kansas |
| 14 | Guy D. Caldwell | 41 | Head | Farmer | Missouri |
| 15 | Ada Caldwell | 37 | Wife | — | Kansas |
| 16 | Gyra Caldwell | 4 | Daughter | — | Kansas |
| 17 | Walter S. Strain | 41 | Head | Laborer | Kansas |
| 18 | Genevie Strain | 40 | Wife | — | Nebraska |
| 19 | Francis Strain | 16 | Daughter | Typist | Kansas |
| 20 | Bonnie Strain | 13 | Daughter | — | Nebraska |
| 21 | Rona Strain | 10 | Daughter | — | Nebraska |
| 22 | Marvin Strain | 3 | Son | — | Nebraska |
| 23 | Frederick O. Linden | 55 | Head | Laborer | England |
| 24 | Eva Linden | 55 | Wife | — | England |
| 25 | Edward Linden | 22 | Son | Laborer | Kansas |
| 26 | William S. Brown | 39 | Head | Laborer | Kansas |
| 27 | Violet Brown | 20 | Wife | — | Kansas |
| 28 | Dorothy Brown | 1 | Daughter | — | Kansas |
| 29 | Ivan D. Nash | 34 | Head | Laborer | Kansas |
| 30 | Beulah Nash | 26 | Wife | — | Kansas |
| 31 | Eileen Nash | 6 | Daughter | — | Colorado |
| 32 | Lyle Nash | 2 | Son | — | Kansas |
| 33 | Lee R. Conn | 44 | Head | Laborer | Kansas |
| 34 | Stella Conn | 42 | Wife | Typist | Kansas |
| 35 | Mayne Conn | 20 | Daughter | Typist | Kansas |
| 36 | Richard Conn | 18 | Son | Clerk | Kansas |
| 37 | Lorena Conn | 16 | Daughter | — | Kansas |
| 38 | Vonda Conn | 14 | Daughter | — | Kansas |
| 39 | Mary Flo Conn | 11 | Daughter | — | Kansas |
| 40 | Opal Joy Conn | 5 | Daughter | — | Kansas |
Pedigree Summary
Walter
Gen 1 · 2 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)