MS
Mary Simms — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orleans-County, Louisiana
Our Model Tree links this Mary Simms across the 1930 and 1940 US Censuses in Orleans-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Louisiana |
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Additional Details | |
| Occupation | New Worker |
| Hours Worked | 2 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | New Worker |
| Township / Ward | New Orleans |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Doris Simms | Other | — | 5 | ~1935 |
| Herbert Simms | Son | — | 5 | ~1935 |
| Ernest Simms | Son | — | 22 | ~1918 |
| Barbara Simms | Other | — | ~1940 | |
| Levi Simms | Head | — | 47 | ~1893 |
| Ethel Simms | Spouse | — | 44 | ~1896 |
| Bertha Simms | Daughter | — | 24 | ~1916 |
| Mary Simms | Daughter | — | 19 | ~1921 |
Census Appearances
1930
St Charles, …
Daughter, age 9
St Charles, Louisiana · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Orleans-County, Louisiana
Daughter, age 19
Orleans-County, Louisiana · implied b. ~1921 — 8 household members
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | New Orleans |
| 1935 Residence (County) | Orleans |
| Occupation | New Worker |
| Hours Worked | 2 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 19 · b. ~1921 · Louisiana
★ You are viewing this record
Sibling
Bertha Simms
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Simms
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Simms
Sibling · 1940 · age 22
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 — Orleans-County, Louisiana
Open full size
1940 US Federal Census — Orleans-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01418-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rita Burton | 48 | Wife | — | Mississippi |
| 42 | Monroe Daniels | 50 | Head | Paver | Louisiana |
| 43 | Emma Daniels | 47 | Wife | — | Louisiana |
| 44 | Joseph Breaux | 39 | Head | Laborer | Louisiana |
| 45 | Kiefer Breaux | 32 | Wife | House Worker | Mississippi |
| 46 | Helen Richardson | 43 | Head | — | Louisiana |
| 47 | Richard Daniels | 24 | Son | Laborer | Louisiana |
| 48 | Alesana Crosie | 43 | Head | Dressmaker | Louisiana |
| 49 | Cora Mundy | 49 | Partner | House Worker | Louisiana |
| 50 | Dave Johnson | 48 | Head | Laborer | Louisiana |
| 51 | Alice Johnson | 39 | Wife | — | Louisiana |
| 52 | Ruth Johnson | 23 | Daughter | House Work | Louisiana |
| 53 | Ora Johnson | 22 | Daughter | House Work | Louisiana |
| 54 | Delphine Johnson | 20 | Daughter | House Work | Louisiana |
| 55 | Delia Johnson | 16 | Daughter | Dish Washer | Louisiana |
| 56 | Binie Johnson | 16 | Son | — | Louisiana |
| 57 | Rosalie Boy | 2 | Grand Daughter | — | Louisiana |
| 58 | Stella Smith | 49 | Head | — | Louisiana |
| 59 | Alice Smith | 23 | Daughter | — | Louisiana |
| 60 | Levi Simms | 47 | Head | Laborer | Louisiana |
| 61 | Ethel Simms | 44 | Wife | — | Louisiana |
| 62 | Bertha Simms | 24 | Daughter | House Work | Louisiana |
| 63 | Ernest Simms | 22 | Son | Laborer | Louisiana |
| 64 | Mary Simms THIS PERSON | 19 | Daughter | New Worker | Louisiana |
| 65 | Herbert Simms | 5 | Son | — | Louisiana |
| 66 | Doris Simms | 5 | Grand Daughter | — | Louisiana |
| 67 | Barbara Simms | 0 | Grand Daughter | — | Louisiana |
| 68 | Jesse Matthews | 32 | Head | Laborer | Alabama |
| 69 | Odette Matthews | 26 | Wife | — | Louisiana |
| 70 | Mathie Jenkins | 42 | Head | Laborer | Mississippi |
| 71 | Anna Jenkins | 42 | Wife | — | Mississippi |
| 72 | Sam Jackson | 32 | Head | Laborer | Louisiana |
| 73 | Fayette Jackson | 30 | Wife | — | Louisiana |
| 74 | Etta B. Jackson | 15 | Daughter | — | Louisiana |
| 75 | James Cropper | 30 | Head | Laborer | Louisiana |
| 76 | Ada Cropper | 36 | Wife | — | Louisiana |
| 77 | James Jr. Cropper | 12 | Son | — | Louisiana |
| 78 | Dorothy Cropper | 11 | Daughter | — | Louisiana |
| 79 | Watts Jim | 61 | Head | Laborer | Louisiana |
| 80 | Beulah Jim | 31 | Wife | — | 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)