MJ
Mary Jefferson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Tennessee
Our Model Tree links this Mary Jefferson across the 1930 and 1940 US Censuses in Shelby-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 11-person household.
Age 14
b. ~1926
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Tennessee |
| Surname | Jefferson |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Civil Dist No 1 |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ned Jefferson | Son | — | 5 | ~1935 |
| Thelma Jefferson | Daughter | — | 2 | ~1938 |
| Gladine Jefferson | Daughter | — | 9 | ~1931 |
| Arlie Jefferson | Daughter | — | 12 | ~1928 |
| Mary Jefferson | Daughter | — | 14 | ~1926 |
| Kansas Jefferson | Daughter | — | 10 | ~1930 |
| Clara Jefferson | Daughter | — | ~1940 | |
| Ned Jefferson | Head | — | 40 | ~1900 |
| Anna Jefferson | Daughter | — | 6 | ~1934 |
| Lettie Jefferson | Spouse | — | 38 | ~1902 |
| Ed Jefferson | Son | — | 8 | ~1932 |
Census Appearances
1930
Fayette, Tennessee
Daughter, age 5
Fayette, Tennessee · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Shelby-County, Tennessee
Daughter, age 14
Shelby-County, Tennessee · implied b. ~1926 — 11 household members
| Surname | Jefferson |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Shelby |
| Highest Grade | No 5 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Jefferson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jefferson
Daughter · 1940 · age 14 · b. ~1926 · Tennessee
★ You are viewing this record
Sibling
Ned Jefferson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlie Jefferson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladine Jefferson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Jefferson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kansas Jefferson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Jefferson
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Jefferson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ed Jefferson
Sibling · 1940 · age 8
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 — Shelby-County, Tennessee
Open full size
1940 US Federal Census — Shelby-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03934-00497)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Raymond H. Bennett | 46 | Head | Farmer | Tennessee |
| 42 | Virginia Bennett | 46 | Wife | — | Tennessee |
| 43 | Raymond Jr. Bennett | 15 | Son | — | Tennessee |
| 44 | Eddie Cox | 30 | Head | Farm Laborer | Tennessee |
| 45 | Rozell Cox | 27 | Wife | Maid | Tennessee |
| 46 | Ethel Mae Cox | 2 | Daughter | — | Tennessee |
| 47 | Olden Arthe | 47 | Mother-in-law | — | Tennessee |
| 48 | Moses Oldham | 67 | Head | Farm Laborer | Tennessee |
| 49 | Cealie Oldham | 54 | Wife | — | Tennessee |
| 50 | Ned Jefferson | 40 | Head | Farmer | Tennessee |
| 51 | Lettie Jefferson | 38 | Wife | — | Tennessee |
| 52 | Mary Lou Jefferson THIS PERSON | 14 | Daughter | — | Tennessee |
| 53 | Arlie Jefferson | 12 | Daughter | — | Tennessee |
| 54 | Kansas Jefferson | 10 | Daughter | — | Tennessee |
| 55 | Gladine Jefferson | 9 | Daughter | — | Tennessee |
| 56 | Ed Jefferson | 8 | Son | — | Tennessee |
| 57 | Anna Bertha Jefferson | 6 | Daughter | — | Tennessee |
| 58 | Ned Jr. Jefferson | 5 | Son | — | Tennessee |
| 59 | Thelma Jefferson | 2 | Daughter | — | Tennessee |
| 60 | Clara Bell Jefferson | 0 | Daughter | — | Tennessee |
| 61 | Mary Jefferson | 56 | Head | Farm Hand | Tennessee |
| 62 | Idinia Thomas | 25 | Daughter | Wash | Tennessee |
| 63 | Milton Thomas | 15 | Grandson | — | Tennessee |
| 64 | Sammy Shelton | 50 | Boarder | Farm Laborer | Tennessee |
| 65 | John Wesley Thompson | 5 | Grandson | — | Tennessee |
| 66 | Neta V. Matthews | 35 | Daughter | — | Tennessee |
| 67 | Walter Soepker | 55 | Head | Farmer | Tennessee |
| 68 | Agatha Soepker | 40 | Wife | — | Oklahoma |
| 69 | Soepker | None | — | — | — |
| 70 | Donald Soepker | 16 | Son | — | Tennessee |
| 71 | Walter Jr. Soepker | 20 | Son | Prentice | Tennessee |
| 72 | Eva Mae Soepker | 21 | Daughter-in-law | Switch Board Oper. | Alabama |
| 73 | George Twine | 49 | Head | Plasterer | Mississippi |
| 74 | Katharine Twine | 42 | Wife | — | Mississippi |
| 75 | Ruth Mae Twine | 19 | Daughter | Maid | Mississippi |
| 76 | Gladys Twine | 12 | Daughter | — | Mississippi |
| 77 | Amanda Allen | 64 | Sister | — | Mississippi |
| 78 | Albert Neivills | 40 | Head | Laborer | Tennessee |
| 79 | Hattie Mae Neivills | 35 | Wife | Maid | Tennessee |
| 80 | Clara Bell Neivills | 15 | Daughter | — | Tennessee |
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)