MH
Mary Horton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this Mary Horton across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Horton |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hammond |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Schererville Town |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Betty Horton | Daughter | — | 4 | ~1936 |
| Mary Horton | Daughter | — | 11 | ~1929 |
| Harold Horton | Head | — | 35 | ~1905 |
| William Horton | Son | — | 9 | ~1931 |
| Walter Horton | Son | — | 16 | ~1924 |
| Oscar Horton | Son | — | 14 | ~1926 |
| Richard Horton | Son | — | 7 | ~1933 |
| Olga Horton | Spouse | — | 34 | ~1906 |
Census Appearances
1930
Lake, Indiana
Daughter, age 1
Lake, Indiana · implied b. ~1929 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Horton |
| Given Name | Mary Ann |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Indiana
Daughter, age 11
Lake-County, Indiana · implied b. ~1929 — 8 household members
| Surname | Horton |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Hammond |
| 1935 Residence (County) | Lake |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Horton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Horton
Daughter · 1940 · age 11 · b. ~1929 · Indiana
★ You are viewing this record
Sibling
Walter Horton
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Horton
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Horton
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Horton
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Horton
Sibling · 1940 · age 14
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 — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01068-00925)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Brown | 46 | Wife | — | Kentucky |
| 42 | Russel Brown | 18 | Son | New Worker | Kentucky |
| 43 | Willard Brown | 14 | Son | — | Ohio |
| 44 | Wilma Brown | 11 | Daughter | — | Kentucky |
| 45 | Juanita Brown | 6 | Daughter | — | Kentucky |
| 46 | Ruth Brown | 2 | Daughter | — | Kentucky |
| 47 | Jackson Parker | 49 | Head | Laborer | Illinois |
| 48 | Ruby Parker | 27 | Wife | — | Kentucky |
| 49 | Jackie Jr. Parker | 14 | Son | — | Illinois |
| 50 | Lymon Paul Parker | 3 | Son | — | Indiana |
| 51 | Thomas Crook | 32 | Head | Press Helper | Missouri |
| 52 | Martha Crook | 29 | Wife | — | Missouri |
| 53 | Marvin Crook | 9 | Son | — | Indiana |
| 54 | Dolores Crook | 6 | Daughter | — | Indiana |
| 55 | James Thomas Crook | 4 | Son | — | Indiana |
| 56 | William Crook | 2 | Son | — | Indiana |
| 57 | Esther Marie Crook | 0 | Daughter | — | Indiana |
| 58 | Harold Horton | 35 | Head | Water Carrier | Illinois |
| 59 | Olga Horton | 34 | Wife | — | Illinois |
| 60 | Walter Horton | 16 | Son | — | Illinois |
| 61 | Oscar Horton | 14 | Son | — | Illinois |
| 62 | Mary Ann Horton THIS PERSON | 11 | Daughter | — | Illinois |
| 63 | William Horton | 9 | Son | — | Illinois |
| 64 | Richard Horton | 7 | Son | — | Illinois |
| 65 | Betty Jane Horton | 4 | Daughter | — | Indiana |
| 66 | Fred Earl | 47 | Head | Laborer | Kentucky |
| 67 | Betty Earl | 24 | Wife | — | Kentucky |
| 68 | Fred Leroy Earl | 2 | Son | — | Indiana |
| 69 | Richard Tutter | 42 | Head | Brick Layer | Wisconsin |
| 70 | Ora Tutter | 36 | Wife | — | Kentucky |
| 71 | Thelma Harvey | 14 | Foster Daughter | — | Illinois |
| 72 | John Ruble | 48 | Head | Wheel Borer | Missouri |
| 73 | Katherine Ruble | 46 | Wife | — | Kentucky |
| 74 | Abbi Page | 47 | Head | Laborer | Illinois |
| 75 | Emma Page | 42 | Wife | — | Illinois |
| 76 | Reuben Page | 24 | Son | Steel Mills | Illinois |
| 77 | Louis Sandefur | 33 | Head | Handy Man | Kentucky |
| 78 | Loney Sandefur | 32 | Wife | — | Kentucky |
| 79 | Bobby Sandefur | 12 | Son | — | Kentucky |
| 80 | Mona Jean Sandefur | 9 | Daughter | — | Kentucky |
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)