MS
Mary Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, Alabama
Our Model Tree links this Mary Simmons across the 1930 and 1940 US Censuses in Sumter-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 15-person household.
Age 19
b. ~1921
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, Alabama |
| Surname | Simmons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Occupation | 0 |
| Class of Worker | Farm |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | 0 |
| Township / Ward | Election Precinct 9 Belmont |
| Est. Birth Year | ~1921 |
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.
15 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Simmons | Daughter | — | 19 | ~1921 |
| Lizzie Mckinley | Daughter | — | 10 | ~1930 |
| Linda Simmons | Daughter | — | 20 | ~1920 |
| Hannie Mckinley | Daughter | — | 3 | ~1937 |
| Octavia Mckinley | Daughter | — | 14 | ~1926 |
| Luvenia Mckinley | Daughter | — | 13 | ~1927 |
| Irena Simmons | Daughter | — | 17 | ~1923 |
| Alberta Mckinley | Daughter | — | 7 | ~1933 |
| Melvin Simmons | Head | — | 46 | ~1894 |
| Head Mckinley | Other | — | — | |
| Mckinley Mckinley | Son | — | 6 | ~1934 |
| Sid Simmons | Son | — | 13 | ~1927 |
| Tom Mckinley | Son | — | 2 | ~1938 |
| Malinda Simmons | Spouse | — | 38 | ~1902 |
| Carrie Mckinley | Spouse | — | 36 | ~1904 |
Census Appearances
Daughter, age 9
Sumter, Alabama · implied b. ~1921 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Sumter-County, Alabama
Daughter, age 19
Sumter-County, Alabama · implied b. ~1921 — 15 household members
| Surname | Simmons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (County) | Sumter |
| Occupation | 0 |
| Class of Worker | Farm |
| Highest Grade | No 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 Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Simmons
Daughter · 1940 · age 19 · b. ~1921 · Alabama
★ You are viewing this record
Sibling
Tom Mckinley
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mckinley Mckinley
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Linda Simmons
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alberta Mckinley
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luvenia Mckinley
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lizzie Mckinley
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irena Simmons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sid Simmons
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hannie Mckinley
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Octavia Mckinley
Sibling · 1940 · age 14
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 — Sumter-County, Alabama
Open full size
1940 US Federal Census — Sumter-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00080-00398)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nobuta Wright | 2 | Daughter | — | Alabama |
| 2 | John W Wright | 0 | Son | — | Alabama |
| 3 | Nobuta Wright | 57 | Mother | 20 | Alabama |
| 4 | Jessie Wright | 37 | Head | 20 | Alabama |
| 5 | Clara Wright | 30 | Wife | 0 | Alabama |
| 6 | Eunice Wright | 7 | Daughter | — | Alabama |
| 7 | Annie May Wright | 5 | Daughter | — | Alabama |
| 8 | Margaret Wright | 3 | Daughter | — | Alabama |
| 9 | Julius Armstrong | 25 | Head | 35 | Alabama |
| 10 | Hannie Armstrong | 27 | Wife | 0 | Alabama |
| 11 | Melvin Simmons | 46 | Head | 44 | Alabama |
| 12 | Malinda Simmons | 38 | Wife | 0 | Alabama |
| 13 | Linda Simmons | 20 | Daughter | 25 | Alabama |
| 14 | Mary Simmons THIS PERSON | 19 | Daughter | 0 | Alabama |
| 15 | Irena Simmons | 17 | Daughter | — | Alabama |
| 16 | Sid Simmons | 13 | Son | — | Alabama |
| 17 | Head Mckinley | None | M | Farmer | — |
| 18 | Carrie Mckinley | 36 | Wife | 0 | Alabama |
| 19 | Octavia Mckinley | 14 | Daughter | 0 | Alabama |
| 20 | Luvenia Mckinley | 13 | Daughter | — | Alabama |
| 21 | Lizzie L Mckinley | 10 | Daughter | — | Alabama |
| 22 | Alberta Mckinley | 7 | Daughter | — | Alabama |
| 23 | Mckinley Jr Mckinley | 6 | Son | — | Alabama |
| 24 | Hannie M Mckinley | 3 | Daughter | — | Alabama |
| 25 | Tom C Mckinley | 2 | Son | — | Alabama |
| 26 | Wash Armstrong | 34 | Head | 44 | Alabama |
| 27 | Julia Ann Armstrong | 29 | Wife | 0 | Alabama |
| 28 | Frank Wright | 36 | Head | 45 | Alabama |
| 29 | Jennie Wright | 34 | Wife | 0 | Alabama |
| 30 | Annie B Wright | 14 | Daughter | 0 | Alabama |
| 31 | Lilly May Wright | 5 | Daughter | — | Alabama |
| 32 | Frank Jr Wright | 1 | Son | — | Alabama |
| 33 | Pruitt Melda Wright | 35 | Sister | 25 | Alabama |
| 34 | Joe Townsend | 50 | Head | 38 | Alabama |
| 35 | Celrie Townsend | 49 | Wife | 0 | Alabama |
| 36 | Celrie L Mcknight | 7 | Daughter | — | Alabama |
| 37 | Minnie Mcknight | 6 | Daughter | — | Alabama |
| 38 | Melvina Mcknight | 3 | Daughter | — | Alabama |
| 39 | Callie Winston | 30 | Head | 44 | Alabama |
| 40 | Emma Winston | 27 | Wife | 0 | Alabama |
Related Census Records
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)