MJ
Mary Jefferson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pickens-County, Alabama
Our Model Tree links this Mary Jefferson across the 1930 and 1940 US Censuses in Pickens-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pickens-County, Alabama |
| Surname | Jefferson |
| Given Name | Mary Edna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 16 |
| 1935 Residence (County) | Pickens |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 16 |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Leo Jefferson | Son | — | 12 | ~1928 |
| Jaunita Jefferson | Daughter | — | 16 | ~1924 |
| Tom Jefferson | Head | — | 63 | ~1877 |
| Annette Jefferson | Daughter | — | 2 | ~1938 |
| Helen Jefferson | Daughter | — | 9 | ~1931 |
| Arobelia Jefferson | Daughter | — | 18 | ~1922 |
| Alice Jefferson | Daughter | — | 10 | ~1930 |
| Mary Jefferson | Daughter | — | 15 | ~1925 |
| Calie Jefferson | Spouse | — | 36 | ~1904 |
| Bula Jefferson | Daughter | — | 14 | ~1926 |
| Hathia Jefferson | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Pickens, Alabama
Daughter, age 6
Pickens, Alabama · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jefferson |
| Given Name | Mary Linn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Pickens-County, Alabama
Daughter, age 15
Pickens-County, Alabama · implied b. ~1925 — 11 household members
| Surname | Jefferson |
| Given Name | Mary Edna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Precinct 16 |
| 1935 Residence (County) | Pickens |
| Income (1939) | 0 |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 15 · b. ~1925 · Alabama
★ You are viewing this record
Sibling
Alice Jefferson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Jefferson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Jefferson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jaunita Jefferson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annette Jefferson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bula Jefferson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arobelia Jefferson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hathia Jefferson
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 — Pickens-County, Alabama
Open full size
1940 US Federal Census — Pickens-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00074-00552)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas G. Burkes | 15 | Grandson | — | Alabama |
| 2 | Elvada Cabiniss | 59 | Sister | — | Alabama |
| 3 | J. H. Yearby | 51 | Head | Farmer | Alabama |
| 4 | Nola May Yearby | 38 | Wife | Laborer | Alabama |
| 5 | Eunitte Edward Yearby | 22 | Son | Farmer | Alabama |
| 6 | Gary Oplene Yearby | 21 | Daughter | Laborer | Alabama |
| 7 | Anis Danell Yearby | 16 | Daughter | — | Alabama |
| 8 | Mildred Earline Yearby | 13 | Daughter | — | Alabama |
| 9 | Mable Fay Yearby | 10 | Daughter | — | Alabama |
| 10 | Ophelia Grace Yearby | 7 | Daughter | — | Alabama |
| 11 | Jerry Deon Yearby | 5 | Son | — | Alabama |
| 12 | John Wilburn | 63 | Head | Farmer | Alabama |
| 13 | Hattie Wilburn | 52 | Wife | — | Alabama |
| 14 | Rolie Wilburn | 15 | Son | Laborer | Alabama |
| 15 | Lizzie Mae Wilson | 4 | Granddaughter | — | Alabama |
| 16 | Johnie Mae Doningon | 7 | Daughter | — | Alabama |
| 17 | Tom Jefferson | 63 | Head | Laborer | Mississippi |
| 18 | Calie Cook Jefferson | 36 | Wife | Laborer | Alabama |
| 19 | Arobelia Jefferson | 18 | Daughter | Laborer | Alabama |
| 20 | Jaunita Jefferson | 16 | Daughter | Laborer | Alabama |
| 21 | Mary Edna Jefferson THIS PERSON | 15 | Daughter | — | Alabama |
| 22 | Bula Madediene Jefferson | 14 | Daughter | — | Alabama |
| 23 | Leo Frank Jefferson | 12 | Son | — | Alabama |
| 24 | Alice Fay Jefferson | 10 | Daughter | — | Alabama |
| 25 | Helen Ruth Jefferson | 9 | Daughter | — | Alabama |
| 26 | Hathia Jefferson | 7 | Daughter | — | Alabama |
| 27 | Annette Jefferson | 2 | Daughter | — | Alabama |
| 28 | A. S. Kirk | 61 | Head | Medical Dr. | Alabama |
| 29 | Matie Gertrude Kirk | 42 | Wife | — | Alabama |
| 30 | Thomas Kirk | 18 | Son | — | Alabama |
| 31 | John Robert Kirk | 15 | Son | — | Alabama |
| 32 | Peggy Jane Kirk | 6 | Daughter | — | Alabama |
| 33 | William H. Gregg | 25 | Head | Farmer | Alabama |
| 34 | Sary Deal Gregg | 19 | Wife | — | Alabama |
| 35 | Ollie Maxine Gregg | 1 | Daughter | — | Alabama |
| 36 | Chuland Ballard | 13 | Brother-in-law | — | Alabama |
| 37 | William H. Goodman | 50 | Head | Farmer | Alabama |
| 38 | Mamie B. Goodman | 32 | Wife | — | Alabama |
| 39 | Mary Dean Goodman | 4 | Daughter | — | Alabama |
| 40 | Joe Lee Goodman | 2 | Son | — | Alabama |
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)