MS
Mary Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mary Smith across the 1910, 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 3-person household.
Age 79
b. ~1861
Female
Head
Born: Kentucky
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Smith |
| Given Name | Mary R. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | INDIANAPOLIS |
| 1935 Residence (County) | MARION |
| Additional Details | |
| Highest Grade | Hs 4 36 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1861 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Duenweg | Daughter | — | 17 | ~1923 |
| Hazel Duenweg | Daughter | — | 49 | ~1891 |
| Mary Smith | Head | — | 79 | ~1861 |
Census Appearances
1910
Marion, Indiana
Spouse, age 49
Marion, Indiana · implied b. ~1861 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary R |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Years Married | 26 |
| Children Born | 6 |
| Children Living | 3 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Marion, Indiana
Spouse, age 58
Marion, Indiana · implied b. ~1862 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary R. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marion, Indiana
Other, age 69
Marion, Indiana · implied b. ~1861 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary R. |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 22 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Marion-County, Indiana
Head, age 79
Marion-County, Indiana · implied b. ~1861 — 3 household members
| Surname | Smith |
| Given Name | Mary R. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | INDIANAPOLIS |
| 1935 Residence (County) | MARION |
| Highest Grade | Hs 4 36 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Smith
Head · 1940 · age 79 · b. ~1861 · 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01123-00402)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Egan | 55 | Maid | Maid | Michigan |
| 3 | Mary R. Smith THIS PERSON | 79 | Head | — | Kentucky |
| 4 | Hazel S. Duenweg | 49 | Daughter | — | Illinois |
| 5 | Mary E. Duenweg | 17 | Daughter | — | Indiana |
| 6 | Elmer Sherwood | 43 | Head | Editor | Indiana |
| 7 | Lucille Sherwood | 38 | Wife | — | Indiana |
| 8 | Joan Sherwood | 13 | Daughter | — | Indiana |
| 9 | Robert Sherwood | 11 | Son | — | Indiana |
| 10 | Edward J. Elliott | 39 | Head | Drafting Engineer | Indiana |
| 11 | Eileen Elliott | 38 | Wife | — | Mass |
| 12 | Edward K. Reese | 53 | Head | Broker | Maryland |
| 13 | Laura Reese | 51 | Wife | — | North Carolina |
| 14 | Joan Reese | 11 | Daughter | — | Indiana |
| 15 | Agnes Wilhoit | 45 | Lodger | Bookkeeper | Indiana |
| 16 | Amelia Ross | 76 | Head | — | Kentucky |
| 17 | Irma Ross | 46 | Daughter | Teacher | Indiana |
| 18 | William H. Mcmillan | 54 | Head | Salesman | Ohio |
| 19 | Emma R. Mcmillan | 57 | Wife | — | Kentucky |
| 20 | Harold A. Andrews | 32 | Son-in-law | Salesman | Illinois |
| 21 | Burnette Andrews | 28 | Daughter | — | Ohio |
| 22 | Donald R. Andrews | 6 | Grandson | — | Indiana |
| 23 | William H. Andrews | 2 | Grandson | — | Indiana |
| 24 | Earl J. Breech | 43 | Head | Executive Clerk | Missouri |
| 25 | Hazel E. Breech | 42 | Wife | — | Missouri |
| 26 | Bettie Breech | 21 | Daughter | Saleslady | Illinois |
| 27 | Earl J. Jr. Breech | 16 | Son | — | Illinois |
| 29 | William C. Smith | 44 | Head | Owner | Indiana |
| 30 | Rose Anna M. Smith | 23 | Daughter | Secretary | Indiana |
| 31 | Dorothy E. Smith | 22 | Daughter | Typist | Indiana |
| 32 | Genevieve M. Smith | 19 | Daughter | — | Indiana |
| 33 | Violet D. Smith | 17 | Daughter | — | Indiana |
| 34 | Lulumay Smith | 15 | Daughter | — | Indiana |
| 35 | George W. Lambert | 61 | Head | Salesman | Indiana |
| 36 | Ethel E. Lambert | 60 | Wife | — | Indiana |
| 37 | W. S. M. Hughes | 60 | Brother-in-law | Salesman | Illinois |
| 38 | Bessie Hughes | 58 | Sister-in-law | — | Indiana |
| 39 | W. Shannon Hughes | 26 | Nephew | Salesman | Illinois |
| 40 | Ernest J. Hoyt | 69 | Head | Special Agent | Ohio |
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)