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Margaret Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carroll-County, Indiana
Our Model Tree links this Margaret Martin across the 1920, 1930 and 1940 US Censuses in Carroll-County, Indiana (XGBoost, ~Confirmed), with identified parents Miles & Ruby — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Indiana |
| Surname | Martin |
| Given Name | Margaret Lucy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Delphi |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Teacher |
| Township / Ward | Delphi |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Martin | Daughter | — | 22 | ~1918 |
| Miles Martin | Head | — | 60 | ~1880 |
| Ruby Martin | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Carroll, Indiana
Daughter, age 1
Carroll, Indiana · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Carroll, Indiana
Daughter, age 12
Carroll, Indiana · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Margaret L. |
| Relationship to Head | Daughter |
| Sex | F |
| 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
Carroll-County, Indiana
Daughter, age 22
Carroll-County, Indiana · implied b. ~1918 — 3 household members
| Surname | Martin |
| Given Name | Margaret Lucy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Delphi |
| 1935 Residence (County) | Carroll |
| Occupation | School Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 800 |
| Highest Grade | C-3 |
| 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 Margaret Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Miles Martin (~0.92 confidence) and mother Ruby Martin (~0.92 confidence) and father Miles Martin (~0.92 confidence) and father Arthur Martin (~0.92 confidence) and mother Edith Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Miles Martin
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Ruby Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Miles Martin
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Arthur Martin
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Edith Martin
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Martin
Daughter · 1940 · age 22 · b. ~1918 · Indiana
★ 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 — Carroll-County, Indiana
Open full size
1940 US Federal Census — Carroll-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01029-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter E. Wilson | 12 | Son | — | Indiana |
| 2 | Jesse L. Wilson | 10 | Son | — | Indiana |
| 3 | Reed Allen | 25 | Head | Farm Laborer | Indiana |
| 4 | Helen Allen | 21 | Wife | — | Indiana |
| 5 | Ralph Allen | 5 | Son | — | Indiana |
| 6 | Donald Allen | 2 | Son | — | Indiana |
| 7 | Carolyn Allen | 0 | Daughter | — | Indiana |
| 8 | Alba G. Yeller | 50 | Head | Farmer | Indiana |
| 9 | Neva M. Yeller | 44 | Wife | — | Indiana |
| 10 | Robert L. Yeller | 12 | Son | — | Indiana |
| 11 | Helen L. Yeller | 8 | Daughter | — | Indiana |
| 12 | Robert S. Crockett | 25 | Head | Farm Laborer | Indiana |
| 13 | Dorothy Crockett | 25 | Wife | — | Michigan |
| 14 | Robert C. Crockett | 4 | Son | — | Indiana |
| 15 | Velma Crockett | 2 | Daughter | — | Indiana |
| 16 | Patricia Crockett | 1 | Daughter | — | Indiana |
| 17 | Miles T. Martin | 60 | Head | Farmer | Indiana |
| 18 | Ruby E. Martin | 51 | Wife | — | Indiana |
| 19 | Margaret Lucy Martin THIS PERSON | 22 | Daughter | School Teacher | Indiana |
| 20 | Fay Smith | 23 | Head | Laborer | Indiana |
| 21 | Ruby Smith | 22 | Wife | — | Indiana |
| 22 | Donald F. Smith | 0 | Son | — | Indiana |
| 23 | Floyd Sieber | 47 | Head | — | Indiana |
| 24 | John Sieber | 25 | Son | Farmer | Indiana |
| 25 | Joan Sieber | 15 | Daughter | — | Indiana |
| 26 | Joyce Sieber | 13 | Daughter | — | Indiana |
| 27 | Billy Sieber | 11 | Son | — | Indiana |
| 28 | R. Earl Sines | 49 | Head | Farmer | Indiana |
| 29 | Frida Sines | 24 | Daughter | — | Indiana |
| 30 | Marjorie Sines | 20 | Daughter | Secretary | Indiana |
| 31 | Nelson Sines | 12 | Son | — | Indiana |
| 32 | Mary Kathryn Sines | 10 | Daughter | — | Indiana |
| 33 | Elmer Watkins | 19 | Step-son | — | Indiana |
| 34 | Kenneth Black | 23 | Head | Farm Laborer | Indiana |
| 35 | Helen Black | 21 | Wife | — | Indiana |
| 36 | Jackie Lee Black | 1 | Son | — | Indiana |
| 37 | Benjamin Rice | 74 | Head | Farmer | Indiana |
| 38 | Elizabeth Rice | 72 | Wife | — | Indiana |
| 39 | Walter V. Eypree | 55 | Head | Farmer | Indiana |
| 40 | Maude Eypree | 55 | Wife | — | Indiana |
Pedigree Summary
Margaret
Gen 1 · 5 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)