TM
Thelma Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Indiana
Our Model Tree links this Thelma Martin across the 1930 and 1940 US Censuses in Warren-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Indiana |
| Surname | Martin |
| Given Name | Thelma |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | State Line |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Kent Twp |
| Est. Birth Year | ~1927 |
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 Thelma | Age | Birth yr |
|---|---|---|---|---|
| Ellis Martin | Son | — | 20 | ~1920 |
| Juanita Martin | Daughter | — | 10 | ~1930 |
| Violet Martin | Daughter | — | 1 | ~1939 |
| Effie Martin | Spouse | — | 39 | ~1901 |
| Leroy Martin | Son | — | 17 | ~1923 |
| Thelma Martin | Daughter | — | 13 | ~1927 |
| Rosemary Martin | Daughter | — | 7 | ~1933 |
| Ruth Martin | Daughter | — | 15 | ~1925 |
| Jeff Martin | Head | — | 47 | ~1893 |
| Velma Martin | Daughter | — | 11 | ~1929 |
| Margaret Martin | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Warren, Indiana
Daughter, age 3
Warren, Indiana · implied b. ~1927 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thelma M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Warren-County, Indiana
Daughter, age 13
Warren-County, Indiana · implied b. ~1927 — 11 household members
| Surname | Martin |
| Given Name | Thelma |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | State Line |
| 1935 Residence (County) | Warren |
| Highest Grade | 7 |
| 1935 Residence | Indiana |
| 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 Thelma Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thelma Martin
Daughter · 1940 · age 13 · b. ~1927 · Indiana
★ You are viewing this record
Sibling
Juanita Martin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosemary Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Martin
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Velma Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellis Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Violet Martin
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Martin
Sibling · 1940 · age 17
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 — Warren-County, Indiana
Open full size
1940 US Federal Census — Warren-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01106-00826)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thos Henderson | 18 | son | Laborer | Illinois |
| 2 | Gilbert Bailiff | 47 | Head | Farmer | Missouri |
| 3 | Bessie Bailiff | 47 | wife | — | Illinois |
| 4 | Norma E Bailiff | 17 | daughter | — | Illinois |
| 5 | Donald Bailiff | 14 | son | — | Illinois |
| 6 | Richard Bailiff | 12 | son | — | Indiana |
| 7 | Gilbert Jr Bailiff | 11 | son | — | Indiana |
| 8 | Raymond Bailiff | 9 | son | — | Indiana |
| 9 | Milly Cathleen Bailiff | 8 | daughter | — | Indiana |
| 10 | Juanita Bailiff | 4 | daughter | — | Illinois |
| 11 | Robert Ricketts | 42 | Head | Gravel Hauler | Indiana |
| 12 | Francis Ricketts | 35 | wife | — | Indiana |
| 13 | Leonard Ricketts | 20 | son | Baker | Indiana |
| 14 | Genevieve Ricketts | 18 | daughter | — | Indiana |
| 15 | Harold Ricketts | 14 | son | — | Indiana |
| 16 | Fammiel Ricketts | 11 | daughter | — | Indiana |
| 17 | Treva Ann Ricketts | 3 | daughter | — | Indiana |
| 18 | Leslie Earl Ricketts | 2 | son | — | Indiana |
| 19 | Chas Davis | 50 | Head | Gravel Scooper | Illinois |
| 20 | Jeff Martin | 47 | Head | Cross Man | Kentucky |
| 21 | Effie Martin | 39 | wife | — | Kentucky |
| 22 | Ellis J Martin | 20 | son | Farmer | Kentucky |
| 23 | Leroy Martin | 17 | son | Farmer | Illinois |
| 24 | Ruth Martin | 15 | daughter | — | Illinois |
| 25 | Thelma Martin THIS PERSON | 13 | daughter | — | Indiana |
| 26 | Velma Martin | 11 | daughter | — | Indiana |
| 27 | Juanita Martin | 10 | daughter | — | Indiana |
| 28 | Rosemary Martin | 7 | daughter | — | Indiana |
| 29 | Margaret Martin | 3 | daughter | — | Indiana |
| 30 | Violet Martin | 1 | daughter | — | Indiana |
| 31 | Purl Rusk | 48 | Head | Gravel Scooper | Indiana |
| 32 | May Rusk | 47 | wife | — | Illinois |
| 33 | Ed Probasco | 34 | Head | Farmer | Illinois |
| 34 | Ruth Probasco | 33 | wife | — | Illinois |
| 35 | Everett Probasco | 10 | son | — | Illinois |
| 36 | Gloria Probasco | 9 | daughter | — | Illinois |
| 37 | Homer Gee | 52 | Head | Gravel Hauler | Indiana |
| 38 | Ethel Gee | 46 | wife | — | Indiana |
| 39 | Maxine Gee | 21 | daughter | File Clerk | Indiana |
| 40 | Joan Gee | 7 | daughter | — | 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)