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Martha Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Indiana
Our Model Tree links this Martha Martin across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Indiana (XGBoost, ~Confirmed), with identified parents Fred & Archie — first a daughter (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Indiana |
| Surname | Martin |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Crawfordsville |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Cash Clerk |
| Industry | Printing Co |
| Class of Worker | PW |
| Income (1939) | 832 |
| Highest Grade | Hs 3 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Cash Clerk |
| Township / Ward | Crawfordsville |
| Est. Birth Year | ~1912 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Magdalene Martin | Daughter | — | 36 | ~1904 |
| Kathryn Martin | Daughter | — | 30 | ~1910 |
| Martha Martin | Daughter | — | 28 | ~1912 |
| Fred Martin | Head | — | 61 | ~1879 |
Census Appearances
1920
Montgomery, Indiana
Daughter, age 8
Montgomery, Indiana · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Montgomery, Indiana
Daughter, age 18
Montgomery, Indiana · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Stenographer |
| Industry | Printing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Montgomery-County, Indiana
Daughter, age 28
Montgomery-County, Indiana · implied b. ~1912 — 4 household members
| Surname | Martin |
| Given Name | Martha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Crawfordsville |
| 1935 Residence (County) | Montgomery |
| Occupation | Cash Clerk |
| Industry | Printing Co |
| Class of Worker | PW |
| Income (1939) | 832 |
| Highest Grade | Hs 3 |
| 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 Martha Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Martin (~0.92 confidence) and father Archie Martin (~0.92 confidence) and father Fred Martin (~0.92 confidence) and mother Fannie Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Martin
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Archie Martin
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Fred Martin
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Fannie Martin
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha Martin
Daughter · 1940 · age 28 · b. ~1912 · Indiana
★ You are viewing this record
Sibling
Magdalene Martin
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn 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 — Montgomery-County, Indiana
Open full size
1940 US Federal Census — Montgomery-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01080-00616)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irmee Shelton | 5 | daughter | — | Indiana |
| 2 | Marnelle Mahoney | 42 | head | Secretary | Indiana |
| 3 | Pearl Mahoney | 39 | wife | — | Indiana |
| 4 | Richard Mahoney | 16 | son | — | Indiana |
| 5 | Oscar Straub | 49 | head | Manager Owner | Indiana |
| 6 | Evah Straub | 41 | wife | — | Indiana |
| 7 | Leo Sós | 42 | roomer | Engineer | Hungary |
| 8 | Walter Laird | 50 | roomer | Manager | Indiana |
| 9 | William Mitchell | 35 | head | Bundler | Indiana |
| 10 | Lillian Mitchell | 32 | wife | — | Indiana |
| 11 | Shirley Ann Mitchell | 13 | daughter | — | Indiana |
| 12 | John D. Richardson | 39 | head | Salesman | Indiana |
| 13 | Hazel M. Richardson | 34 | wife | — | Indiana |
| 14 | John D. Richardson | 10 | son | — | Indiana |
| 15 | Lowell E. Richardson | 4 | son | — | Indiana |
| 16 | K. Knout Roberts | 70 | head | Office Manag. | Indiana |
| 17 | Elizabeth B. Cook | 40 | head | — | Indiana |
| 18 | Martha Jane Cook | 13 | daughter | — | Indiana |
| 19 | Grover Jones | 57 | head | Clerk | Minnesota |
| 20 | Frances Jones | 30 | daughter | Bookkeeper | Indiana |
| 21 | Helen S. Teague | 30 | head | Dressmaker | Indiana |
| 22 | E. H. Cowan | 73 | head | — | Indiana |
| 23 | Lucetta Green | 61 | servant | Housekeeper | Indiana |
| 24 | Albert S. Swindler | 74 | head | — | Indiana |
| 25 | Verna Swindler | 53 | wife | — | Kentucky |
| 26 | Harriet Fischer | 69 | head | — | Indiana |
| 27 | Helen B. Fischer | 44 | daughter | Stenographer | Indiana |
| 28 | Forrest Newnum | 26 | head | Binder Operator | Indiana |
| 29 | Virginia Newnum | 25 | wife | Stenographer | Indiana |
| 30 | Wayne Richard Newnum | 0 | son | — | Indiana |
| 31 | Fred Martin | 61 | head | Truck Driver | Indiana |
| 32 | Magdalene Martin | 36 | daughter | Assistant Cashier | Indiana |
| 33 | Martha Martin THIS PERSON | 28 | daughter | Cash Clerk | Indiana |
| 34 | Kathryn Martin | 30 | daughter | — | Indiana |
| 35 | Elizabeth Steel | 72 | head | — | Illinois |
| 36 | Rebecca Steel | 32 | daughter | Clerk | Indiana |
| 37 | Herschel Douglas | 25 | head | Salesman | Indiana |
| 38 | Irene Douglas | 25 | wife | Operator | Indiana |
| 39 | Anna J. Karl | 69 | head | — | Indiana |
| 40 | Mattie Cox | 50 | head | — | Indiana |
Pedigree Summary
Martha + 2 siblings
Gen 1 · 4 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)