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Mary Grady — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kemper-County, Mississippi
Our Model Tree links this Mary Grady across the 1930 and 1940 US Censuses in Kemper-County, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kemper-County, Mississippi |
| Surname | Grady |
| Given Name | Mary Lu |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kemper |
| Additional Details | |
| Occupation | House Work |
| Class of Worker | NP |
| Hours Worked | 40 |
| Highest Grade | No 5 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | House Work |
| Township / Ward | Beat 4 Kellys Store |
| Est. Birth Year | ~1922 |
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 |
|---|---|---|---|---|
| Guy Grady | Son | — | 21 | ~1919 |
| Anis Grady | Spouse | — | 45 | ~1895 |
| Mary Grady | Daughter | — | 18 | ~1922 |
| Margit Grady | Daughter | — | 16 | ~1924 |
| Tom Grady | Head | — | 56 | ~1884 |
| Clark Grady | Son | — | 10 | ~1930 |
| Willie Grady | Daughter | — | 13 | ~1927 |
| Annie Grady | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Kemper, Mississippi
Daughter, age 12
Kemper, Mississippi · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grady |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Kemper-County, Mississippi
Daughter, age 18
Kemper-County, Mississippi · implied b. ~1922 — 8 household members
| Surname | Grady |
| Given Name | Mary Lu |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Kemper |
| Occupation | House Work |
| Class of Worker | NP |
| Hours Worked | 40 |
| Highest Grade | No 5 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Grady across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grady
Daughter · 1940 · age 18 · b. ~1922 · Mississippi
★ You are viewing this record
Sibling
Guy Grady
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Grady
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margit Grady
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clark Grady
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Grady
Sibling · 1940 · age 7
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 — Kemper-County, Mississippi
Open full size
1940 US Federal Census — Kemper-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02037-00492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cal Warren | 49 | Head | Farming | Mississippi |
| 2 | Jessie Warren | 39 | Wife | House Work | Mississippi |
| 3 | Jim Henry Warren | 21 | Son | Farm Labor | Mississippi |
| 4 | Emma Warren | 20 | Daughter | House Work | Mississippi |
| 5 | Atis Warren | 18 | Son | Farm Labor | Mississippi |
| 6 | Ruth Warren | 16 | Daughter | School Girl | Mississippi |
| 7 | Agness Warren | 10 | Daughter | — | Mississippi |
| 8 | Elna Warren | 6 | Daughter | — | Mississippi |
| 9 | Francis Warren | 2 | Daughter | — | Mississippi |
| 10 | Henry Coker | 81 | Head | — | Mississippi |
| 11 | Mattie Coker | 75 | Wife | — | Mississippi |
| 12 | Bonnie George | 53 | Head | Sewing Room | Mississippi |
| 13 | Ramey George | 23 | Son | Farm Work | Mississippi |
| 14 | John R. George | 18 | Son | Public Work | Mississippi |
| 15 | Mable George | 15 | Daughter | — | Mississippi |
| 16 | Wallace Clark | 59 | Head | Farming | Mississippi |
| 17 | Grace Clark | 62 | Wife | House Work | Mississippi |
| 18 | Jenkins Mccalum | 24 | Head | Farming | Mississippi |
| 19 | Christine Mccalum | 22 | Wife | House Work | Mississippi |
| 20 | Mattie L. Mccalum | 2 | Daughter | — | Mississippi |
| 21 | Tom Grady | 56 | Head | Farming | Mississippi |
| 22 | Anis Grady | 45 | Wife | House Work | Mississippi |
| 23 | Guy Grady | 21 | Son | Farming | Mississippi |
| 24 | Mary Lu Grady THIS PERSON | 18 | Daughter | House Work | Mississippi |
| 25 | Margit Grady | 16 | Daughter | House Work | Mississippi |
| 26 | Willie Grady | 13 | Daughter | — | Mississippi |
| 27 | Clark Grady | 10 | Son | — | Mississippi |
| 28 | Annie Grace Grady | 7 | Daughter | — | Mississippi |
| 29 | Jack Grady | 24 | Head | Farming | Mississippi |
| 30 | Minnie Grady | 20 | Wife | House Work | Mississippi |
| 31 | Callie Grady | 3 | Daughter | — | Mississippi |
| 32 | Lizzie Grady | 2 | Daughter | — | Mississippi |
| 33 | Eloise Grady | 0 | Daughter | — | Mississippi |
| 34 | Andrew Allen | 65 | Head | Farming | Mississippi |
| 35 | Corrine Allen | 36 | Wife | House Work | Mississippi |
| 36 | Neal Harrell Allen | 9 | Son | — | Mississippi |
| 37 | Sharlet Allen | 7 | Daughter | — | Mississippi |
| 38 | Atis Jones | 40 | Head | Farming | Mississippi |
| 39 | Winnifred Jones | 39 | Wife | House Work | Mississippi |
| 40 | Odill Jones | 14 | Son | School Boy | Mississippi |
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)