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Mary Humphrey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Mary Humphrey across the 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Humphrey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Harrison Twp |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Omeal Humphrey | Head | — | 45 | ~1895 |
| Florence Campbell | Daughter | — | 17 | ~1923 |
| Nancy Humphrey | Daughter | — | 11 | ~1929 |
| Mary Humphrey | Daughter | — | 15 | ~1925 |
| Jeanette Campbell | Daughter | — | 14 | ~1926 |
| Barbara Humphrey | Daughter | — | 4 | ~1936 |
| Bertha Humphrey | Daughter | — | 7 | ~1933 |
| Amiel Humphrey | Son | — | 13 | ~1927 |
| Howard Humphrey | Son | — | 19 | ~1921 |
| Melissa Humphrey | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Vigo, Indiana
Daughter, age 5
Vigo, Indiana · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Humphrey |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vigo-County, Indiana
Daughter, age 15
Vigo-County, Indiana · implied b. ~1925 — 10 household members
| Surname | Humphrey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Vigo |
| Highest Grade | No 8 |
| 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 Mary Humphrey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Humphrey
Daughter · 1940 · age 15 · b. ~1925 · Indiana
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Sibling
Howard Humphrey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Humphrey
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amiel Humphrey
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Campbell
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Humphrey
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Campbell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Humphrey
Sibling · 1940 · age 4
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 — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01104-00916)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorward Conley | 46 | Head | Miner | Kentucky |
| 2 | Alice Conley | 46 | Wife | — | England |
| 3 | James Conley | 21 | Son | — | Indiana |
| 4 | Davora Conley | 19 | Daughter | — | Indiana |
| 5 | David Perkin | 60 | Lodger | — | England |
| 6 | Charles Jackson | 54 | Head | Farmer | Indiana |
| 7 | Annie Jackson | 54 | Wife | — | Missouri |
| 8 | Richard Jackson | 26 | Grand-son | Time Keeper | Indiana |
| 9 | Barbara Jackson | 14 | Grand-daughter | — | Indiana |
| 10 | Clarence Tagg | 39 | Head | Laborer | Indiana |
| 11 | Florence Tagg | 35 | Wife | — | Indiana |
| 12 | Wayne Tagg | 16 | Son | — | Indiana |
| 13 | Bob Tagg | 14 | Son | — | Indiana |
| 14 | Jack Tagg | 11 | Son | — | Indiana |
| 15 | Hallie Nolen | 34 | Head | Laborer | Tennessee |
| 16 | Pearl Nolen | 26 | Wife | — | Arkansas |
| 17 | Floyd Nolen | 7 | Son | — | Indiana |
| 18 | Shirley Nolen | 5 | Son | — | Indiana |
| 19 | Mike Sebastian | 53 | Head | Laborer | Illinois |
| 20 | Irene Sebastian | 46 | Wife | — | Indiana |
| 21 | Omeal Humphrey | 45 | Head | Adult-Educator | Indiana |
| 22 | Melissa Humphrey | 42 | Wife | — | Indiana |
| 23 | Howard Humphrey | 19 | Son | Laborer | Indiana |
| 24 | Mary Humphrey THIS PERSON | 15 | Daughter | — | Indiana |
| 25 | Amiel Jr. Humphrey | 13 | Son | — | Indiana |
| 26 | Nancy Humphrey | 11 | Daughter | — | Indiana |
| 27 | Bertha Humphrey | 7 | Daughter | — | Indiana |
| 28 | Barbara Humphrey | 4 | Daughter | — | Indiana |
| 29 | Florence Campbell | 17 | Daughter | — | Indiana |
| 30 | Jeanette Campbell | 14 | Daughter | — | Indiana |
| 31 | Lucino Nicison | 23 | Head | Auto Mechanic | Indiana |
| 32 | Hazel Nicison | 22 | Wife | — | Indiana |
| 33 | Jo Ellen Nicison | 0 | Daughter | — | Indiana |
| 34 | Grover Wells | 55 | Head | Laborer | Indiana |
| 35 | Estella Wells | 48 | Wife | — | Illinois |
| 36 | Earl Wells | 21 | Son | — | Indiana |
| 37 | Dorothy Wells | 18 | Daughter | — | Indiana |
| 38 | John V. Wells | 15 | Son | — | Indiana |
| 39 | Patricia Wells | 7 | Daughter | — | Indiana |
| 40 | Charles Gibbons | 27 | Head | Truck Driver | Indiana |
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)