CM
Clarence Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Posey-County, Indiana
Our Model Tree links this Clarence Martin across the 1920, 1930 and 1940 US Censuses in Posey-County, Indiana (XGBoost, ~Confirmed), with identified parents Bernice & Lena — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Posey-County, Indiana |
| Surname | Martin |
| Given Name | Clarence P. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marris Township |
| 1935 Residence (County) | Posey |
| Additional Details | |
| Occupation | book keeping |
| Industry | plumbing shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 850 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Book Keeping |
| Township / Ward | Marris Township |
| Est. Birth Year | ~1918 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Ralph Martin | Son | — | 20 | ~1920 |
| Lena Martin | Spouse | — | 57 | ~1883 |
| Edward Martin | Head | — | 56 | ~1884 |
| Orville Martin | Son | — | 17 | ~1923 |
| Elmer Martin | Son | — | 23 | ~1917 |
| Clarence Martin | Son | — | 22 | ~1918 |
Census Appearances
1920
Posey, Indiana
Son, age 1
Posey, Indiana · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Posey, Indiana
Son, age 12
Posey, Indiana · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Posey-County, Indiana
Son, age 22
Posey-County, Indiana · implied b. ~1918 — 6 household members
| Surname | Martin |
| Given Name | Clarence P. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marris Township |
| 1935 Residence (County) | Posey |
| Occupation | book keeping |
| Industry | plumbing shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 850 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Clarence Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Bernice Martin (~0.92 confidence) and mother Lena Martin (~0.92 confidence) and mother Lena Martin (~0.92 confidence) and father Edward Martin (~0.92 confidence) and father Edward Martin (~0.92 confidence) and father Edward Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bernice Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Lena Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Lena Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Edward Martin
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Edward Martin
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Edward Martin
b. ~1884
Source father
● Household
· direct · ~0.92
This person
Anchor record
Clarence Martin
Son · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
Orville Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Martin
Sibling · 1940 · age 23
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 — Posey-County, Indiana
Open full size
1940 US Federal Census — Posey-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01087-00374)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Susanna Helzgrefe | 61 | wife | — | Indiana |
| 2 | Lorena F. Helzgrefe | 30 | daughter | Laborer | Indiana |
| 3 | George E. Helzgrefe | 25 | son | Laborer | Indiana |
| 4 | Rosa M. M. Helzgrefe | 22 | daughter | — | Indiana |
| 5 | George P. Martin | 46 | head | Laborer | Indiana |
| 6 | Doris J. Martin | 44 | wife | — | Indiana |
| 7 | Dorothy J. Martin | 19 | daughter | — | Indiana |
| 8 | Allie M. Martin | 17 | daughter | Waitress | Indiana |
| 9 | George Jr. Martin | 16 | son | — | Indiana |
| 10 | Hazel P. Martin | 14 | daughter | — | Indiana |
| 11 | Robert F. Martin | 13 | son | — | Indiana |
| 12 | Harold K. Martin | 11 | son | — | Indiana |
| 13 | Elsie M. Martin | 9 | daughter | — | Indiana |
| 14 | Walter E. Martin | 8 | son | — | Indiana |
| 15 | Mary Ann Martin | 6 | daughter | — | Indiana |
| 16 | Louis J. Martin | 4 | daughter | — | Indiana |
| 17 | Mark Jones | 55 | head | Farming | Kentucky |
| 18 | Mary E. Jones | 55 | wife | — | Kentucky |
| 19 | David F. Jones | 25 | son | Laborer | Missouri |
| 20 | Raymond Jones | 20 | son | Truck Driver | Missouri |
| 21 | Dessie Jones | 16 | daughter | — | Illinois |
| 22 | Stanley J. Behenk | 48 | head | Laborer | Illinois |
| 23 | Lula Behenk | 46 | wife | — | Indiana |
| 24 | Stanley Behenk | 15 | son | Laborer | Indiana |
| 25 | Essie Behenk | 13 | daughter | — | Indiana |
| 26 | Goldie Behenk | 13 | daughter | — | Indiana |
| 27 | Lara Behenk | 11 | daughter | — | Indiana |
| 28 | June Behenk | 10 | daughter | — | Indiana |
| 29 | Rubie Behenk | 9 | daughter | — | Indiana |
| 30 | Ruth Behenk | 8 | daughter | — | Indiana |
| 31 | Edward W. Martin | 56 | head | Farming | Indiana |
| 32 | Lena S. Martin | 57 | wife | — | Indiana |
| 33 | Elmer C. Martin | 23 | son | Spray Painter | Indiana |
| 34 | Clarence P. Martin THIS PERSON | 22 | son | Book Keeping | Indiana |
| 35 | Ralph W. Martin | 20 | son | Laborer | Indiana |
| 36 | Orville C. Martin | 17 | son | — | Indiana |
| 37 | William Pauley | 45 | head | Farming | Indiana |
| 38 | Rosa Pauley | 40 | wife | — | Indiana |
| 39 | Velma Pauley | 20 | daughter | — | Indiana |
| 40 | Joseph Pauley | 17 | son | Laborer | Indiana |
Pedigree Summary
Clarence + 3 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)