MS
Mary Simms — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tensas-County, Louisiana
Our Model Tree links this Mary Simms across the 1930 and 1940 US Censuses in Tensas-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tensas-County, Louisiana |
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | St. Joseph |
| 1935 Residence (County) | Tensas |
| Additional Details | |
| Highest Grade | G 4 |
| 1935 Residence | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Ward 7 |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Henrietta Simms | Daughter | — | 2 | ~1938 |
| Rosella Simms | Head | — | 31 | ~1909 |
| Roosevelt Simms | Son | — | 6 | ~1934 |
| Mary Simms | Daughter | — | 12 | ~1928 |
| Harrison Simms | Son | — | 8 | ~1932 |
| Elvie Simms | Daughter | — | 15 | ~1925 |
| Emma Simms | Daughter | — | 16 | ~1924 |
| Carrie Simms | Daughter | — | 10 | ~1930 |
| Abe Simms | Son | — | 4 | ~1936 |
Census Appearances
1930
Tensas, Louisiana
Daughter, age 2
Tensas, Louisiana · implied b. ~1928 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Tensas-County, Louisiana
Daughter, age 12
Tensas-County, Louisiana · implied b. ~1928 — 9 household members
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | St. Joseph |
| 1935 Residence (County) | Tensas |
| Highest Grade | G 4 |
| 1935 Residence | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Simms across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Simms
Daughter · 1940 · age 12 · b. ~1928 · Louisiana
★ You are viewing this record
Sibling
Roosevelt Simms
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elvie Simms
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henrietta Simms
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Simms
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harrison Simms
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Abe Simms
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carrie Simms
Sibling · 1940 · age 10
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 — Tensas-County, Louisiana
Open full size
1940 US Federal Census — Tensas-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01458-00426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Louise Bonds | 10 | daughter | — | Louisiana |
| 42 | Annie Lee Bonds | 7 | daughter | — | Louisiana |
| 43 | Henry Mae Bonds | 4 | son | — | Louisiana |
| 44 | H. M. Marks | None | Non Resident | — | Louisiana |
| 45 | Elent D. Foster | 35 | head | Farmer | Louisiana |
| 46 | Elvie Foster | 30 | wife | Housewife | Louisiana |
| 47 | Frank Foster | 11 | son | — | Louisiana |
| 48 | Rosella D. Simms | 31 | head | Farmer | Louisiana |
| 49 | Emma Simms | 16 | daughter | — | Louisiana |
| 50 | Elvie Simms | 15 | daughter | — | Louisiana |
| 51 | Mary Simms THIS PERSON | 12 | daughter | — | Louisiana |
| 52 | Carrie Simms | 10 | daughter | — | Louisiana |
| 53 | Harrison Jr. Simms | 8 | son | — | Louisiana |
| 54 | Roosevelt Simms | 6 | son | — | Louisiana |
| 55 | Abe Simms | 4 | son | — | Louisiana |
| 56 | Henrietta Simms | 2 | daughter | — | Louisiana |
| 57 | Robert Johnson | 74 | head | Farmer | Maryland |
| 58 | Mary Johnson | 48 | wife | — | Alabama |
| 59 | Robert Jr. Johnson | 16 | son | Laborer | Louisiana |
| 60 | Jessie Johnson | 15 | grandson | Laborer | Louisiana |
| 61 | Ida Mae Wright | 14 | granddaughter | — | Louisiana |
| 62 | Elnora Keller | 11 | granddaughter | — | Louisiana |
| 63 | Victor D. Simms | 25 | head | Farmer | Louisiana |
| 64 | Pittyway Walter Simms | 31 | son | Laborer | Louisiana |
| 65 | Dave D. Thomas | 67 | head | Farmer | Louisiana |
| 66 | Laura Ann Thomas | 49 | wife | — | Louisiana |
| 67 | Mose D. Scott | 42 | head | Farmer | Louisiana |
| 68 | Evelyn Scott | 34 | wife | — | Louisiana |
| 69 | Hlythe P. Scott | 12 | son | — | Louisiana |
| 70 | Thomas C. Scott | 10 | son | — | Louisiana |
| 71 | Hattie Louise Scott | 8 | daughter | — | Louisiana |
| 72 | Philip H. Scott | 4 | son | — | Louisiana |
| 73 | Maxine L. Scott | 1 | daughter | — | Louisiana |
| 74 | Isaac D. Lee | 30 | head | Farmer | Louisiana |
| 75 | Clara Lee | 29 | wife | — | Louisiana |
| 76 | Florence C. Douglas | 14 | niece | — | Louisiana |
| 77 | Levy D. Knapper | 28 | head | Farmer | Louisiana |
| 78 | Carrie Knapper | 24 | wife | — | Louisiana |
| 79 | Henry Knapper | 9 | son | — | Louisiana |
| 80 | Mary Lizzie Knapper | 7 | daughter | — | Louisiana |
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)