MG
Mary Graves — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warrick-County, Indiana
Our Model Tree links this Mary Graves across the 1930 and 1940 US Censuses in Warrick-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 9-person household.
Age 19
b. ~1921
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Warrick-County, Indiana |
| Surname | Graves |
| Given Name | Mary Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Boonville |
| 1935 Residence (County) | Warrick |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Boonville |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harold Graves | Son | — | 17 | ~1923 |
| Paul Graves | Son | — | 10 | ~1930 |
| Doris Clutter | Other | — | 3 | ~1937 |
| Billy Clutter | Other | — | 5 | ~1935 |
| Iris Graves | Daughter | — | 14 | ~1926 |
| Mary Graves | Daughter | — | 19 | ~1921 |
| Charles Graves | Son | — | 21 | ~1919 |
| Floyd Graves | Son | — | 12 | ~1928 |
| Nellie Graves | Head | — | 53 | ~1887 |
Census Appearances
1930
Warrick, Indiana
Daughter, age 9
Warrick, Indiana · implied b. ~1921 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Mary R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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
Warrick-County, Indiana
Daughter, age 19
Warrick-County, Indiana · implied b. ~1921 — 9 household members
| Surname | Graves |
| Given Name | Mary Ruth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Boonville |
| 1935 Residence (County) | Warrick |
| Highest Grade | Hs 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 Mary Graves across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Graves
Daughter · 1940 · age 19 · b. ~1921 · Indiana
★ You are viewing this record
Sibling
Iris Graves
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Graves
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Graves
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Graves
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Graves
Sibling · 1940 · age 12
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 — Warrick-County, Indiana
Open full size
1940 US Federal Census — Warrick-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01107-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peggy Sue Stamps | 4 | daughter | — | Indiana |
| 2 | Merle E. Lockhart | 41 | Head | Electrician | Indiana |
| 3 | Hallie Lockhart | 40 | Wife | — | Indiana |
| 4 | Margaret Ann Lockhart | 11 | daughter | — | Indiana |
| 5 | Beeler Christensen | 46 | Head | Time Keeper | Indiana |
| 6 | Bessie Christensen | 36 | Wife | — | Indiana |
| 7 | Charlotte Shoulders | 75 | mother-in-law | — | Indiana |
| 8 | Robert Ellis | 27 | Head | Truck Driver | Indiana |
| 9 | Neva Ellis | 27 | Wife | — | Indiana |
| 10 | Ed Waters | 48 | Head | Police | Indiana |
| 11 | Goldie Waters | 36 | Wife | — | Indiana |
| 12 | Lloyd Welch | 15 | step son | — | Indiana |
| 13 | Eugene Welch | 13 | step son | — | Indiana |
| 14 | Henry St. Clair | 23 | Head | Deputy Recorder | Indiana |
| 15 | Leona Ruth St. Clair | 20 | Wife | — | Indiana |
| 16 | Carolyn Sue St. Clair | 0 | daughter | — | Indiana |
| 17 | Elijah Wire | 57 | Head | Sander | Indiana |
| 18 | Dora Wire | 53 | Wife | — | Indiana |
| 19 | Walter Wire | 24 | son | New Worker | Indiana |
| 20 | Raymond Shoulders | 26 | Head | Attendant | Indiana |
| 21 | Audra Shoulders | 27 | Wife | — | Indiana |
| 22 | Jessie B. Whitney | 25 | Head | — | Indiana |
| 23 | Edna Whitney | 20 | Wife | — | Indiana |
| 24 | Clarence Birkner | 26 | Head | Attendant | Nebraska |
| 25 | Lena Birkner | 30 | Wife | — | Indiana |
| 26 | Walter Birkner | 7 | son | — | Indiana |
| 27 | Everett Birkner | 6 | son | — | Indiana |
| 28 | Ruth Birkner | 4 | daughter | — | Indiana |
| 29 | Clarice J. Birkner | 3 | daughter | — | Indiana |
| 30 | Nellie A. Graves | 53 | Head | — | Indiana |
| 31 | Charles Graves | 21 | son | — | Indiana |
| 32 | Mary Ruth Graves THIS PERSON | 19 | daughter | — | Indiana |
| 33 | Harold Graves | 17 | son | — | Indiana |
| 34 | Iris Graves | 14 | daughter | — | Indiana |
| 35 | Floyd Graves | 12 | son | — | Indiana |
| 36 | Paul Graves | 10 | son | — | Indiana |
| 37 | Billy Clutter | 5 | grand son | — | Indiana |
| 38 | Doris Jean Clutter | 3 | grand daughter | — | Indiana |
| 39 | George W. Butry | 59 | 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)