MS
Mary Sims — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marengo-County, Alabama
Our Model Tree links this Mary Sims across the 1930 and 1940 US Censuses in Marengo-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1902), then head of a 10-person household.
Age 38
b. ~1902
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marengo-County, Alabama |
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 2 Hill |
| 1935 Residence (County) | Marengo |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Election Precinct 2 Hill |
| Est. Birth Year | ~1902 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Sims | Spouse | — | 38 | ~1902 |
| Clint Sims | Head | — | 65 | ~1875 |
| Irene Sims | Daughter | — | 11 | ~1929 |
| Juline Sims | Daughter | — | 15 | ~1925 |
| Mary Sims | Daughter | — | 2 | ~1938 |
| Bianor Sims | Son | — | 19 | ~1921 |
| Cloda Sims | Daughter | — | 6 | ~1934 |
| Clint Sims | Son | — | 8 | ~1932 |
| Tom Sims | Son | — | 17 | ~1923 |
| Henry Sims | Son | — | 3 | ~1937 |
Census Appearances
1930
Marengo, Alabama
Spouse, age 27
Marengo, Alabama · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 23 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | Farm laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Marengo-County, Alabama
Spouse, age 38
Marengo-County, Alabama · implied b. ~1902 — 10 household members
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Election Precinct 2 Hill |
| 1935 Residence (County) | Marengo |
| Industry | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Alabama |
| 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 Sims across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sims
Spouse · 1940 · age 38 · b. ~1902 · Alabama
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marengo-County, Alabama
Open full size
1940 US Federal Census — Marengo-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00058-00614)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ernest Rembut | 32 | Head | Laborer | Alabama |
| 42 | Mary Etta Rembut | 17 | Wife | — | Alabama |
| 43 | Arthur Guy Rembut | 1 | Son | — | Alabama |
| 44 | J. B. Kirkham | 52 | Head | Farmer | Alabama |
| 45 | Lawrence Kirkham | 20 | Nephew | Laborer | Alabama |
| 46 | Etta Tate | 40 | Head | Cook | Alabama |
| 47 | John Bions | 20 | Son | Laborer | Alabama |
| 48 | Lou Adem Poellnitz | 18 | Son | Laborer | Alabama |
| 49 | Ramon Poellnitz | 14 | Son | — | Alabama |
| 50 | Cola Key Kirkham | 3 | Daughter | — | Alabama |
| 51 | George Rogers | 50 | Head | Farmer | Alabama |
| 52 | Carrie Rogers | 48 | Wife | — | Alabama |
| 53 | Louise Rembut | 33 | Head | Laborer | Alabama |
| 54 | Earline Rembut | 16 | Daughter | — | Alabama |
| 55 | Ernest Rembut | 3 | Daughter | — | Alabama |
| 56 | Ernest Jr. Rembut | 1 | Son | — | Alabama |
| 57 | Carrie Belle Howell | 0 | Daughter | — | Alabama |
| 58 | Joe Jackson | 25 | Head | Laborer | Alabama |
| 59 | Emily Jackson | 22 | Wife | — | Alabama |
| 60 | Sam Jackson | 25 | Head | Laborer | Alabama |
| 61 | Martha Jackson | 24 | Wife | — | Alabama |
| 62 | Maggie Ree Jackson | 2 | Daughter | — | Alabama |
| 63 | Albert Poellnitz | 45 | Head | Farmer | Alabama |
| 64 | Annie Poellnitz | 35 | Wife | — | Alabama |
| 65 | T. J. Jr. Jackson | 26 | Head | Laborer | Alabama |
| 66 | Florance Jackson | 24 | Wife | — | Alabama |
| 67 | Ellen Jackson | 6 | Daughter | — | Alabama |
| 68 | Ernest Jackson | 5 | Son | — | Alabama |
| 69 | Eliah Jackson | 4 | Son | — | Alabama |
| 70 | Robedia Jackson | 3 | Daughter | — | Alabama |
| 71 | Clint Sims | 65 | Head | Farmer | Alabama |
| 72 | Mary Sims THIS PERSON | 38 | Wife | — | Alabama |
| 73 | Bianor Sims | 19 | Son | Laborer | Alabama |
| 74 | Tom Sims | 17 | Son | Laborer | Alabama |
| 75 | Juline Sims | 15 | Daughter | — | Alabama |
| 76 | Irene Sims | 11 | Daughter | — | Alabama |
| 77 | Clint Jr. Sims | 8 | Son | — | Alabama |
| 78 | Cloda Sims | 6 | Daughter | — | Alabama |
| 79 | Henry Sims | 3 | Son | — | Alabama |
| 80 | Mary Ester Sims | 2 | Daughter | — | 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)