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Mary Graves — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Caddo-County, Louisiana
Our Model Tree links this Mary Graves across the 1930 and 1940 US Censuses in Caddo-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Caddo-County, Louisiana |
| Surname | Graves |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 9 |
| 1935 Residence (County) | Caddo |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Ward 9 |
| Est. Birth Year | ~1928 |
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 |
|---|---|---|---|---|
| Thomas Graves | Son | — | 15 | ~1925 |
| Calvin Graves | Son | — | 26 | ~1914 |
| Maude Graves | Spouse | — | 46 | ~1894 |
| Maudeline Graves | Daughter | — | 19 | ~1921 |
| Newman Graves | Son | — | 21 | ~1919 |
| Mary Graves | Daughter | — | 12 | ~1928 |
| Mildred Graves | Daughter | — | 5 | ~1935 |
| Milton Graves | Head | — | 47 | ~1893 |
Census Appearances
1930
Caddo, Louisiana
Daughter, age 3
Caddo, Louisiana · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graves |
| Given Name | Maurice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Arkansas |
| Can Read/Write | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Caddo-County, Louisiana
Daughter, age 12
Caddo-County, Louisiana · implied b. ~1928 — 8 household members
| Surname | Graves |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 9 |
| 1935 Residence (County) | Caddo |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 12 · b. ~1928 · Louisiana
★ You are viewing this record
Sibling
Thomas Graves
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Newman Graves
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Graves
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Graves
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maudeline Graves
Sibling · 1940 · age 19
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 — Caddo-County, Louisiana
Open full size
1940 US Federal Census — Caddo-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01389-00562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claude Jr | 8 | Son | — | Louisiana |
| 2 | Nellie | 6 | Daughter | — | Louisiana |
| 3 | Shirley | 4 | Daughter | — | Louisiana |
| 4 | Homer Slay | 49 | Head | Laborer | Louisiana |
| 5 | Jake Williams | 39 | Head | Laborer | Louisiana |
| 6 | Ruby Williams | 30 | Wife | — | Louisiana |
| 7 | Milton F Graves | 47 | Head | Salesman | Louisiana |
| 8 | Maude Graves | 46 | Wife | — | Missouri |
| 9 | Calvin Graves | 26 | Son | Farmer | Louisiana |
| 10 | Newman Graves | 21 | Son | Farmer | Louisiana |
| 11 | Maudeline Graves | 19 | Daughter | — | Louisiana |
| 12 | Thomas C Graves | 15 | Son | — | Louisiana |
| 13 | Mary L Graves THIS PERSON | 12 | Daughter | — | Louisiana |
| 14 | Mildred Graves | 5 | Daughter | — | Louisiana |
| 15 | Leila Foster | 43 | Head | — | Tennessee |
| 16 | Charles W Foster | 21 | Son | Tractor Operator | Arkansas |
| 17 | F H Foster | 14 | Son | — | Arkansas |
| 18 | Martha Nell Foster | 11 | Daughter | — | Arkansas |
| 19 | Paul L Foster | 7 | Son | — | Arkansas |
| 20 | Charles W Summers | 65 | Head | Farmer | Arkansas |
| 21 | Linnie Summers | 56 | Wife | — | Arkansas |
| 22 | Arnell Summers | 26 | Son | Farmer | Louisiana |
| 23 | Jack Summers | 24 | Son | Laborer | Louisiana |
| 24 | James Summers | 22 | Son | Laborer | Louisiana |
| 25 | Fred Summers | 20 | Son | Farmer | Louisiana |
| 26 | Fay Summers | 19 | Son | — | Louisiana |
| 27 | Flora Summers | 14 | Daughter | — | Louisiana |
| 28 | Rufus Williams | 73 | Head | Farmer | Louisiana |
| 29 | Nannie K Williams | 63 | Wife | — | Louisiana |
| 30 | Rufus Jr Williams | 41 | Son | Laborer | Louisiana |
| 31 | Mary Williams | 35 | Daughter | — | Louisiana |
| 32 | Gertie Williams | 30 | Daughter | — | Louisiana |
| 33 | Morris W Williams | 20 | Son | Field Worker | Louisiana |
| 34 | William B Norton | 44 | Head | Farmer | Louisiana |
| 35 | Maggie Norton | 44 | Wife | — | Louisiana |
| 36 | Geraldine Norton | 15 | Daughter | — | Louisiana |
| 37 | Kenneth Norton | 1 | Son | — | Louisiana |
| 38 | Cleveland Walker | 46 | Head | Farmer | Texas |
| 39 | Mary Walker | 39 | Wife | — | Texas |
| 40 | Barie Walker | 24 | Son | Farmer | Texas |
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)