MG
Mary Graves — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Schoolcraft-County, Michigan
Our Model Tree links this Mary Graves across the 1930 and 1940 US Censuses in Schoolcraft-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 13-person household.
Age 14
b. ~1926
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Schoolcraft-County, Michigan |
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Hiawatha |
| 1935 Residence (County) | Schoolcraft |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Hiawatha |
| Est. Birth Year | ~1926 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Leslie Graves | Son | — | 7 | ~1933 |
| Irene Graves | Daughter | — | 17 | ~1923 |
| Viola Graves | Daughter | — | 2 | ~1938 |
| Robert Graves | Son | — | 17 | ~1923 |
| Vivian Graves | Daughter | — | 9 | ~1931 |
| Roy Graves | Son | — | 20 | ~1920 |
| Raymond Graves | Head | — | 42 | ~1898 |
| Mercy Graves | Spouse | — | 39 | ~1901 |
| Mary Graves | Daughter | — | 14 | ~1926 |
| Leona Graves | Daughter | — | 11 | ~1929 |
| Edwin Graves | Son | — | 15 | ~1925 |
| Richard Graves | Son | — | 5 | ~1935 |
| Mercy Graves | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Schoolcraft, Michigan
Daughter, age 4
Schoolcraft, Michigan · implied b. ~1926 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Kentucky |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Schoolcraft-County, Michigan
Daughter, age 14
Schoolcraft-County, Michigan · implied b. ~1926 — 13 household members
| Surname | Graves |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Hiawatha |
| 1935 Residence (County) | Schoolcraft |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 14 · b. ~1926 · Michigan
★ You are viewing this record
Sibling
Mercy Graves
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Graves
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Graves
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Graves
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Graves
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Graves
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Graves
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Graves
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Graves
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Graves
Sibling · 1940 · age 15
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 — Schoolcraft-County, Michigan
Open full size
1940 US Federal Census — Schoolcraft-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01819-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Ab Skyland | 22 | son | Tractor Operator | Michigan |
| 42 | William Skyland | 16 | son | Janitor | Michigan |
| 43 | Glenn Skyland | 15 | son | — | Michigan |
| 44 | Margaret Skyland | 13 | daughter | — | Michigan |
| 45 | Ruth Skyland | 12 | daughter | — | Michigan |
| 46 | Frank W. Aldrich | 79 | Head | — | Michigan |
| 47 | Margaret Aldrich | 79 | Wife | — | Michigan |
| 48 | William Latsch | 55 | Head | Laborer | Michigan |
| 49 | Josephine Latsch | 50 | Wife | — | Michigan |
| 50 | Howard Latsch | 29 | son | Piece Worker | Michigan |
| 51 | Sidney Latsch | 28 | son | Piece Worker | Michigan |
| 52 | Dallas Latsch | 23 | son | Landscaper | Michigan |
| 53 | John Latsch | 21 | son | Laborer | Michigan |
| 54 | Clayton Latsch | 18 | son | New Worker | Michigan |
| 55 | Herbert Latsch | 13 | son | — | Michigan |
| 56 | Ilean Latsch | 8 | daughter | — | Michigan |
| 57 | Mary M. Reppe | 64 | Head | — | Indiana |
| 58 | Alfred C. Reppe | 38 | son | Laborer | Michigan |
| 59 | Robert C. Reppe | 28 | son | Laborer | Michigan |
| 60 | Perry Fletcher | 72 | Head | — | Michigan |
| 61 | Harriet Fletcher | 68 | Wife | — | New York |
| 62 | Gaylor Byers | 32 | Head | Pine Cutter | Michigan |
| 63 | John D. Spruit | 56 | Head | Caretaker | Finland |
| 64 | Wallis Lewis | 35 | Head | Proprietor | Michigan |
| 65 | Vera Lewis | 39 | Wife | — | Ohio |
| 66 | Raymond Graves | 42 | Head | Timber Feller | Michigan |
| 67 | Mercy Graves | 39 | Wife | — | Kentucky |
| 68 | Roy R. Graves | 20 | son | Piece Cutter | Michigan |
| 69 | Robert H. Graves | 17 | son | Piece Cutter | Michigan |
| 70 | Irene Graves | 17 | daughter | House Work | Michigan |
| 71 | Edwin C. Graves | 15 | son | — | Michigan |
| 72 | Mary Graves THIS PERSON | 14 | daughter | — | Michigan |
| 73 | Leona Graves | 11 | daughter | — | Michigan |
| 74 | Vivian Graves | 9 | daughter | — | Michigan |
| 75 | Leslie Graves | 7 | son | — | Michigan |
| 76 | Richard Graves | 5 | son | — | Michigan |
| 77 | Mercy J. Graves | 3 | daughter | — | Michigan |
| 78 | Viola Mae Graves | 2 | daughter | — | Michigan |
| 79 | Edward D. Lewis | 68 | Head | — | Michigan |
| 80 | Hattie Lewis | 62 | Wife | — | Michigan |
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)