MS
Mary Simon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clarendon-County, South Carolina
Our Model Tree links this Mary Simon across the 1930 and 1940 US Censuses in Clarendon-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 10-person household.
Age 33
b. ~1907
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clarendon-County, South Carolina |
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | St Mark Township |
| 1935 Residence (County) | Clarendon |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | St Mark Township |
| Est. Birth Year | ~1907 |
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 |
|---|---|---|---|---|
| Alice Simon | Daughter | — | 12 | ~1928 |
| Charlie Simon | Son | — | 11 | ~1929 |
| Sarah Simon | Daughter | — | ~1940 | |
| Julia Simon | Daughter | — | 14 | ~1926 |
| Calvin Simon | Son | — | 9 | ~1931 |
| Mary Simon | Spouse | — | 33 | ~1907 |
| Rosie Simon | Daughter | — | 5 | ~1935 |
| Lila Simon | Daughter | — | 16 | ~1924 |
| Annie Simon | Daughter | — | 3 | ~1937 |
| Eunice Simon | Head | — | 39 | ~1901 |
Census Appearances
1930
Clarendon, South …
Other, age 25
Clarendon, South Carolina · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 18 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Clarendon-County, South …
Spouse, age 33
Clarendon-County, South Carolina · implied b. ~1907 — 10 household members
| Surname | Simon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | St Mark Township |
| 1935 Residence (County) | Clarendon |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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
Spouse · 1940 · age 33 · b. ~1907 · South Carolina
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clarendon-County, South Carolina
Open full size
1940 US Federal Census — Clarendon-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03800-00667)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Rhodes | 52 | Head | Farmer | South Carolina |
| 2 | Julia Rhodes | 52 | Wife | — | South Carolina |
| 3 | Helene Rhodes | 18 | Daughter | — | South Carolina |
| 4 | Annie Rhodes | 16 | Daughter | — | South Carolina |
| 5 | Ruth Rhodes | 9 | Daughter | — | South Carolina |
| 6 | Aubrey Singleton | 49 | Head | Farmer | South Carolina |
| 7 | Mary Singleton | 27 | Wife | — | South Carolina |
| 8 | Eugene Singleton | 4 | Son | — | South Carolina |
| 9 | Aubrey Jr Singleton | 2 | Son | — | South Carolina |
| 10 | Peter Walker | 50 | Head | Farmer | South Carolina |
| 11 | Daisy Walker | 25 | Wife | — | South Carolina |
| 12 | Herbert Walker | 11 | Son | — | South Carolina |
| 13 | Eugene Walker | 3 | Son | — | South Carolina |
| 14 | Stepney Simon | 66 | Head | Farmer | South Carolina |
| 15 | Ida Simon | 55 | Wife | — | South Carolina |
| 16 | Allen Simon | 41 | Head | Farmer | South Carolina |
| 17 | Susan Simon | 40 | Wife | — | South Carolina |
| 18 | Elen Simon | 19 | Daughter | — | South Carolina |
| 19 | Lara Simon | 16 | Daughter | — | South Carolina |
| 20 | Edna Simon | 14 | Daughter | — | South Carolina |
| 21 | Allen Jr Simon | 12 | Son | — | South Carolina |
| 22 | Emmanuel Simon | 11 | Son | — | South Carolina |
| 23 | Calvin Simon | 10 | Son | — | South Carolina |
| 24 | Irene Simon | 8 | Daughter | — | South Carolina |
| 25 | Maggie Simon | 6 | Daughter | — | South Carolina |
| 26 | Rosa Simon | 4 | Daughter | — | South Carolina |
| 27 | Lill Baltman Simon | 2 | Son | — | South Carolina |
| 28 | Eunice Simon | 39 | Head | Farmer | South Carolina |
| 29 | Mary Simon THIS PERSON | 33 | Wife | — | South Carolina |
| 30 | Lila May Simon | 16 | Daughter | — | South Carolina |
| 31 | Julia Simon | 14 | Daughter | — | South Carolina |
| 32 | Alice Simon | 12 | Daughter | — | South Carolina |
| 33 | Charlie Simon | 11 | Son | — | South Carolina |
| 34 | Calvin Simon | 9 | Son | — | South Carolina |
| 35 | Rosie Simon | 5 | Daughter | — | South Carolina |
| 36 | Annie Simon | 3 | Daughter | — | South Carolina |
| 37 | Sarah Simon | 0 | Daughter | — | South Carolina |
| 38 | Allen Story | 41 | Head | Farmer | South Carolina |
| 39 | Annie Story | 44 | Wife | — | South Carolina |
| 40 | Charlie Story | 12 | Son | — | South Carolina |
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)