MS
Mary Simon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calcasieu-County, Louisiana
Our Model Tree links this Mary Simon across the 1930 and 1940 US Censuses in Calcasieu-County, Louisiana (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 13-person household.
Age 15
b. ~1925
Female
Daughter
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calcasieu-County, Louisiana |
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Lake Charles |
| 1935 Residence (County) | Calcasieu |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Township / Ward | Lake Charles |
| 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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Simon | Daughter | — | 15 | ~1925 |
| Herbert Simon | Son | — | 12 | ~1928 |
| Melba Simon | Daughter | — | 27 | ~1913 |
| Harry Simon | Son | — | 23 | ~1917 |
| Calvin Simon | Son | — | 11 | ~1929 |
| Alcede Simon | Son | — | 14 | ~1926 |
| Robert Simon | Son | — | 7 | ~1933 |
| Elizabeth Simon | Spouse | — | 44 | ~1896 |
| Nora Simon | Daughter | — | 20 | ~1920 |
| Alcede Simon | Head | — | 48 | ~1892 |
| Edward Simon | Son | — | 9 | ~1931 |
| Rosa Simon | Daughter | — | 24 | ~1916 |
| Dora Simon | Daughter | — | 17 | ~1923 |
Census Appearances
1930
St Maurice, …
Daughter, age 4
St Maurice, Louisiana · implied b. ~1926 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Calcasieu-County, Louisiana
Daughter, age 15
Calcasieu-County, Louisiana · implied b. ~1925 — 13 household members
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Lake Charles |
| 1935 Residence (County) | Calcasieu |
| Highest Grade | H 2 |
| 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 Simon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Simon
Daughter · 1940 · age 15 · b. ~1925 · Louisiana
★ You are viewing this record
Sibling
Alcede Simon
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Simon
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Simon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dora Simon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Simon
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa Simon
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melba Simon
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Simon
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Simon
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Simon
Sibling · 1940 · age 9
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 — Calcasieu-County, Louisiana
Open full size
1940 US Federal Census — Calcasieu-County, Louisiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01390-00097)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertie May Kelly | 18 | Daughter | Stenographer | Louisiana |
| 42 | Dorothy Kelly | 15 | Daughter | — | Louisiana |
| 43 | John Kelly | 13 | Son | — | Louisiana |
| 44 | Clyde Kelly | 10 | Son | — | Louisiana |
| 45 | Patsy Kelly | 2 | Daughter | — | Louisiana |
| 46 | Dorothy Duckworth | 15 | Daughter-in-law | — | Louisiana |
| 47 | Earl Foreman | 38 | Head | Tug Boat Engineer | Louisiana |
| 48 | Lilly Foreman | 30 | Wife | — | Louisiana |
| 49 | Gene Foreman | 11 | Son | — | Louisiana |
| 50 | Lynelle Foreman | 9 | Daughter | — | Louisiana |
| 51 | Ethelyn Foreman | 8 | Daughter | — | Louisiana |
| 52 | Linas Demeritt | 33 | Brother-in-law | Pipe Wrapper | Louisiana |
| 54 | Frank R. Yatman | 63 | Head | Manager | Alabama |
| 55 | Pearl B. Yatman | 52 | Wife | — | Ohio |
| 56 | Stella E. Yatman | 19 | Daughter | — | Louisiana |
| 57 | Mary Yatman | 17 | Daughter | — | Louisiana |
| 58 | Richard Yatman | 14 | Son | — | Louisiana |
| 59 | Porter Rogers | 41 | Head | Millwright | Tennessee |
| 60 | Eva Rogers | 39 | Wife | — | Louisiana |
| 61 | Dorothy Rogers | 15 | Daughter | — | Louisiana |
| 62 | Mary E. Rogers | 12 | Daughter | — | Louisiana |
| 63 | Georgia L. Rogers | 10 | Daughter | — | Louisiana |
| 64 | John Rogers | 7 | Son | — | Louisiana |
| 65 | Evette Rogers | 3 | Daughter | — | Louisiana |
| 66 | Lilly Boykin | 58 | Aunt | — | Louisiana |
| 68 | Alcede Simon | 48 | Head | Repairer & Seller Furniture | Louisiana |
| 69 | Elizabeth Simon | 44 | Wife | — | Louisiana |
| 70 | Melba Simon | 27 | Daughter | Maid | Louisiana |
| 71 | Rosa Simon | 24 | Daughter | Maid | Louisiana |
| 72 | Harry Simon | 23 | Son | — | Louisiana |
| 73 | Nora Lee Simon | 20 | Daughter | Maid | Louisiana |
| 74 | Dora Simon | 17 | Daughter | Maid | Louisiana |
| 75 | Mary Simon THIS PERSON | 15 | Daughter | — | Louisiana |
| 76 | Alcede Jr. Simon | 14 | Son | — | Louisiana |
| 77 | Herbert Simon | 12 | Son | — | Louisiana |
| 78 | Calvin Simon | 11 | Son | — | Louisiana |
| 79 | Edward Simon | 9 | Son | — | Louisiana |
| 80 | Robert Simon | 7 | Son | — | 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)