MS
Martha Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clay-County, Indiana
Our Model Tree links this Martha Smith across the 1920, 1930 and 1940 US Censuses in Clay-County, Indiana (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Indiana |
| Surname | Smith |
| Given Name | Martha Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Brazil City |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Retail Dairy Products |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 240 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Bookkeeper |
| Township / Ward | Brazil City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Martha Smith | Daughter | — | 22 | ~1918 |
| Sarah Smith | Head | — | 50 | ~1890 |
| William Edwards | Other | — | 66 | ~1874 |
| Robert Smith | Son | — | 30 | ~1910 |
| William Smith | Son | — | 28 | ~1912 |
Census Appearances
1920
Clay, Indiana
Daughter, age 1
Clay, Indiana · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Martha Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Clay, Indiana
Daughter, age 11
Clay, Indiana · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Martha J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Clay-County, Indiana
Daughter, age 22
Clay-County, Indiana · implied b. ~1918 — 5 household members
| Surname | Smith |
| Given Name | Martha Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Brazil City |
| 1935 Residence (County) | Clay |
| Occupation | Bookkeeper |
| Industry | Retail Dairy Products |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 240 |
| Highest Grade | H-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 Martha Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Smith (~0.92 confidence) and father James Smith (~0.92 confidence) and mother Lola Smith (~0.92 confidence) and mother Lola Smith (~0.92 confidence) and mother Sarah Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Smith
b. ~1888
Source father
● Household
· direct · ~0.92
Father
James Smith
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Lola Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Lola Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Sarah Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Martha Smith
Daughter · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
William Smith
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
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 — Clay-County, Indiana
Open full size
1940 US Federal Census — Clay-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01032-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Gerton | 38 | Head | Proprietor | Indiana |
| 42 | Clara Gerton | 37 | Wife | — | Indiana |
| 43 | Donald Gerton | 14 | Son | — | Indiana |
| 44 | Joan Gerton | 5 | Daughter | — | Indiana |
| 45 | Fred M. Mcneely | 43 | Head | Proprietor | Indiana |
| 46 | Hazel E. Mcneely | 42 | Wife | — | Indiana |
| 47 | Lucy M. Mcneely | 19 | Daughter | — | Indiana |
| 48 | Henry Hutton | 49 | Head | Chief Of Police | Indiana |
| 49 | Ethel Hutton | 40 | Wife | — | Indiana |
| 50 | Mary Katherine Hutton | 22 | Daughter | Beauty Operator | Indiana |
| 51 | Arris Mardell Stevens | 12 | Niece | — | Michigan |
| 52 | Grant L. Hughes | 43 | Head | Assistant Supt. And Treasurer | Illinois |
| 53 | Louella J. Hughes | 43 | Wife | — | Illinois |
| 54 | Lester D. Hawkins | 46 | Head | Salesman | Indiana |
| 55 | Mary J. Hawkins | 45 | Wife | — | Ohio |
| 56 | Edward Glanzman | 54 | Head | Engineer | Indiana |
| 57 | Ethel Glanzman | 48 | Wife | — | Indiana |
| 58 | Marie Grofe | 20 | Sister-in-law | Maid | Indiana |
| 59 | James R. Mccurdy | 38 | Head | Salesman | Indiana |
| 60 | Maxine Mccurdy | 37 | Wife | — | Indiana |
| 61 | Thomas A. James | 57 | Head | Brick Mason | Indiana |
| 62 | Imogene James | 42 | Wife | — | Oklahoma |
| 63 | Sarah Smith | 50 | Head | — | South Wales |
| 64 | Robert Smith | 30 | Son | Laborer | Indiana |
| 65 | William Smith | 28 | Son | Caretaker | Indiana |
| 66 | Martha Jane Smith THIS PERSON | 22 | Daughter | Bookkeeper | Indiana |
| 67 | William O. Edwards | 66 | Uncle | Miner | South Wales |
| 68 | J. Homer Lovell | 45 | Head | Sales Manager | Indiana |
| 69 | Dora Lovell | 42 | Wife | — | Indiana |
| 70 | Joanna Lovell | 9 | Daughter | — | Indiana |
| 71 | Darrel Pell | 25 | Head | Truck Driver | Indiana |
| 72 | Ethel Pell | 24 | Wife | — | Indiana |
| 73 | Esther Pell | 5 | Daughter | — | Indiana |
| 74 | Lawrence Comes | 28 | Lodger | Proprietor | Indiana |
| 75 | Carl B. Cary | 38 | Head | Doctor | Indiana |
| 76 | Chloris Cary | 37 | Wife | Doctor | Indiana |
| 77 | James Cary | 15 | Son | — | Missouri |
| 78 | Jane Cary | 7 | Daughter | — | Indiana |
| 79 | Wilbur L. Swank | 47 | Head | — | Indiana |
| 80 | Margaret Swank | 43 | Wife | — | Indiana |
Pedigree Summary
Martha + 2 siblings
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)