MS
Mary Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Shelby-County, Indiana
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Shelby-County, Indiana (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a daughter (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Indiana |
| Surname | Smith |
| Given Name | Mary Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Shelbyville |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Occupation | Secretary |
| Industry | Architect |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Secretary |
| Township / Ward | Shelbyville |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rosamond Smith | Daughter | — | 23 | ~1917 |
| Mary Smith | Daughter | — | 24 | ~1916 |
| Margaret Smith | Daughter | — | 16 | ~1924 |
| Doris Smith | Daughter | — | 13 | ~1927 |
| Dorothy Smith | Daughter | — | 20 | ~1920 |
| Joseph Smith | Head | — | 49 | ~1891 |
| William Smith | Son | — | 17 | ~1923 |
| John Smith | Son | — | 21 | ~1919 |
| Charles Smith | Son | — | 25 | ~1915 |
| Jessie Smith | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Shelby, Indiana
Daughter, age 4
Shelby, Indiana · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Shelby, Indiana
Daughter, age 14
Shelby, Indiana · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| 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
Shelby-County, Indiana
Daughter, age 24
Shelby-County, Indiana · implied b. ~1916 — 10 household members
| Surname | Smith |
| Given Name | Mary Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Shelbyville |
| 1935 Residence (County) | Shelby |
| Occupation | Secretary |
| Industry | Architect |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Mary Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Smith (~0.92 confidence) and father Joseph Smith (~0.92 confidence) and mother Josephine Smith (~0.92 confidence) and mother Jessie Smith (~0.92 confidence) and mother Gladys Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Joseph Smith
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Josephine Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Jessie Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Gladys Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Smith
Daughter · 1940 · age 24 · b. ~1916 · Indiana
★ You are viewing this record
Sibling
Dorothy Smith
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Smith
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosamond Smith
Sibling · 1940 · age 23
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 — Shelby-County, Indiana
Open full size
1940 US Federal Census — Shelby-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01094-00522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Luellen Theobald | 10 | Daughter | — | Indiana |
| 42 | Harry Weakley | 68 | Head | Labor | Illinois |
| 43 | Mamie Weakley | 62 | Wife | — | Indiana |
| 44 | Thelmas Weakley | 31 | Son | Auto Mechanic | Indiana |
| 45 | Eugene Weakley | 20 | Son | New Worker | Indiana |
| 46 | Charles Frederick | 30 | Head | Cabinet Maker | Indiana |
| 47 | Christine Frederick | 28 | Wife | — | Iowa |
| 48 | James Frederick | 12 | Son | — | Indiana |
| 49 | Beverly Frederick | 3 | Daughter | — | Indiana |
| 50 | Janet Frederick | 1 | Daughter | — | Indiana |
| 51 | Herbert Gaines | 34 | Head | Truck Driver | Indiana |
| 52 | Hazel Gaines | 30 | Wife | — | Indiana |
| 53 | Clifford Gaines | 10 | Son | — | Indiana |
| 54 | Virginia Gaines | 7 | Daughter | — | Indiana |
| 55 | Mcclellen Gaines | 1 | Son | — | Indiana |
| 56 | George Yarber | 64 | Head | Pwa Road Work | Indiana |
| 57 | Elsie Yarber | 55 | Wife | — | Indiana |
| 58 | Herschel Yarber | 23 | Son | Straw Baler | Indiana |
| 59 | Lora Yarber | 19 | Son | Salesman | Indiana |
| 60 | Glenn Yarber | 17 | Son | New Worker | Indiana |
| 61 | William Yarber | 14 | Son | — | Indiana |
| 62 | Clifton Mcclure | 50 | Head | Wpa Labor | Indiana |
| 63 | Viola Mcclure | 46 | Wife | — | Indiana |
| 64 | William Mcclure | 29 | Son | Mechanic | Indiana |
| 65 | Edith Craig | 24 | Daughter | — | Indiana |
| 66 | Sharon Kay Craig | 2 | Granddaughter | — | Indiana |
| 67 | George Crofton | 33 | Head | Metal Worker | Indiana |
| 68 | Mary Alice Crofton | 27 | Wife | — | Indiana |
| 69 | William Fagel | 63 | Head | Plumber | Indiana |
| 70 | Louise Fagel | 54 | Wife | — | Indiana |
| 71 | Joseph J. Smith | 49 | Head | Proprietor | Indiana |
| 72 | Jessie Smith | 45 | Wife | — | Indiana |
| 73 | Charles Smith | 25 | Son | Bar Tender | Indiana |
| 74 | Mary Anna Smith THIS PERSON | 24 | Daughter | Secretary | Indiana |
| 75 | Rosamond Smith | 23 | Daughter | Bookkeeper | Indiana |
| 76 | John Smith | 21 | Son | Bookkeeper | Indiana |
| 77 | Dorothy Smith | 20 | Daughter | Stenographer | Indiana |
| 78 | William Smith | 17 | Son | — | Indiana |
| 79 | Margaret Smith | 16 | Daughter | — | Indiana |
| 80 | Doris Smith | 13 | Daughter | — | Indiana |
Related Census Records
Pedigree Summary
Mary + 7 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)