TM
Thelma Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Thelma Martin across the 1920, 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed), with identified parents Harry & Harvey — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Martin |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Harrison township |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Harrison Township |
| Est. Birth Year | ~1915 |
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 Thelma | Age | Birth yr |
|---|---|---|---|---|
| Paul Martin | Son | — | 30 | ~1910 |
| Harvey Martin | Head | — | 60 | ~1880 |
| Jessie Martin | Spouse | — | 45 | ~1895 |
| Thelma Martin | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Vigo, Indiana
Daughter, age 5
Vigo, Indiana · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thelma L |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Vigo, Indiana
Daughter, age 15
Vigo, Indiana · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Thelma L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vigo-County, Indiana
Daughter, age 25
Vigo-County, Indiana · implied b. ~1915 — 4 household members
| Surname | Martin |
| Given Name | Thelma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Harrison township |
| 1935 Residence (County) | Vigo |
| 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 Thelma Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Martin (~0.92 confidence) and father Harvey Martin (~0.92 confidence) and father Harvey Martin (~0.92 confidence) and mother Jessie Martin (~0.92 confidence) and mother Jessie Martin (~0.92 confidence) and mother Jessie Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Harvey Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Harvey Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Jessie Martin
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Jessie Martin
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Jessie Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thelma Martin
Daughter · 1940 · age 25 · b. ~1915 · Indiana
★ You are viewing this record
Sibling
Paul Martin
Sibling · 1940 · age 30
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 — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01104-00921)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harvey Martin | 60 | Head | Locomotive Engineer | Pennsylvania |
| 42 | Jessie Martin | 45 | Wife | — | Indiana |
| 43 | Paul Martin | 30 | Son | Stock Boy | Indiana |
| 44 | Thelma Martin THIS PERSON | 25 | Daughter | — | Indiana |
| 45 | William Pugh | 75 | Head | Retired Farmer | Indiana |
| 46 | Lucy Pugh | 77 | Wife | — | Indiana |
| 47 | Mary Rush | 68 | Sister | — | Indiana |
| 48 | Florence Wilson | 34 | Niece | — | Indiana |
| 49 | Jesse M. Wilson | 37 | Nephew | Farmer | Indiana |
| 50 | Wayne Steward | 11 | Nephew | — | Indiana |
| 51 | Florence Hopton | 18 | Niece | — | Indiana |
| 52 | Archie Hopton | 27 | Nephew | Helper | Indiana |
| 53 | Alpha Wood | 30 | Head | Teacher | Indiana |
| 54 | Helen Wood | 23 | Wife | — | Indiana |
| 55 | Max Erne | 35 | Head | Moulder | Indiana |
| 56 | Lola Erne | 18 | Wife | — | Indiana |
| 57 | Samuel Pea | 46 | Head | Houseman | Indiana |
| 58 | Bessie Pea | 43 | Wife | Mangle Work | North Carolina |
| 59 | Harrison H. Jeffers | 29 | Head | Truck Driver | Illinois |
| 60 | Juanita Jeffers | 27 | Wife | — | Illinois |
| 61 | David Morgan | 56 | Father-in-law | Laborer | Illinois |
| 62 | Dorothy Morgan | 27 | Sister-in-law | — | Illinois |
| 63 | David A. Morgan | 8 | Nephew | — | Indiana |
| 64 | Thomas Mellin | 38 | Head | Miner | Indiana |
| 65 | Mable Mellin | 33 | Wife | Shirt Finisher | Indiana |
| 66 | Norma J. Mellin | 14 | Daughter | — | Indiana |
| 67 | Helen Mellin | 11 | Daughter | — | Indiana |
| 68 | Harry Whitaker | 44 | Head | Bartender | Indiana |
| 69 | Ruth Whitaker | 44 | Wife | — | Missouri |
| 70 | Helen Whitaker | 17 | Daughter | — | Indiana |
| 71 | Max Harrison | 31 | Head | Laborer | Indiana |
| 72 | Letha Harrison | 27 | Wife | — | Illinois |
| 73 | Sandra Harrison | 1 | Daughter | — | Indiana |
| 74 | Peter Wirty | 51 | Head | Janitor | Kansas |
| 75 | Helen Wirty | 39 | Wife | — | Illinois |
| 76 | John Wirty | 17 | Son | Attendant | Kansas |
| 77 | Robert Wirty | 15 | Son | — | Kansas |
| 78 | Mercedes Wirty | 15 | Daughter | — | Kansas |
| 79 | William Schach | 69 | Father-in-law | — | New Jersey |
| 80 | Elizabeth Schach | 69 | Mother-in-law | — | Germany |
Related Census Records
Pedigree Summary
Thelma + 1 sibling
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)