MC
Mary Cassidy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Chesterfield-County, South Carolina
Our Model Tree links this Mary Cassidy across the 1930 and 1940 US Censuses in Chesterfield-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 12-person household.
Age 52
b. ~1888
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Chesterfield-County, South Carolina |
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Cheraw Township |
| 1935 Residence (County) | Chesterfield |
| Additional Details | |
| Occupation | servant |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 126 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Servant |
| Township / Ward | Cheraw Township |
| Est. Birth Year | ~1888 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Elias Cassidy | Daughter | — | 11 | ~1929 |
| Louise Cassidy | Daughter | — | 13 | ~1927 |
| Mary Cassidy | Daughter | — | 18 | ~1922 |
| Marie Cassidy | Daughter | — | 9 | ~1931 |
| Maggie Cassidy | Daughter | — | 28 | ~1912 |
| Florence Cassidy | Daughter | — | 14 | ~1926 |
| Charlie Cassidy | Head | — | 57 | ~1883 |
| Sylvester Cassidy | Son | — | 26 | ~1914 |
| Cal Cassidy | Son | — | 17 | ~1923 |
| James Cassidy | Son | — | 24 | ~1916 |
| Elbert Cassidy | Son | — | 16 | ~1924 |
| Mary Cassidy | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Chesterfield, South …
Spouse, age 41
Chesterfield, South Carolina · implied b. ~1889 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Mary Jane |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 17 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Chesterfield-County, South …
Spouse, age 52
Chesterfield-County, South Carolina · implied b. ~1888 — 12 household members
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Cheraw Township |
| 1935 Residence (County) | Chesterfield |
| Occupation | servant |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 126 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Cassidy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cassidy
Spouse · 1940 · age 52 · b. ~1888 · 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 — Chesterfield-County, South Carolina
Open full size
1940 US Federal Census — Chesterfield-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03799-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alexander Davis | 14 | Son | — | South Carolina |
| 42 | Paul Davis | 12 | Son | — | South Carolina |
| 43 | Daniel Davis | 10 | Son | — | South Carolina |
| 44 | Alleine Davis | 8 | Daughter | — | South Carolina |
| 45 | Samuel Davis | 6 | Son | — | South Carolina |
| 46 | George Sanders | 40 | Head | Odd Jobs | South Carolina |
| 47 | Rosanna Sanders | 33 | Wife | Field Hand | South Carolina |
| 48 | Eddie Sanders | 19 | Son | Laborer | South Carolina |
| 49 | Ollie Sanders | 14 | Son | — | South Carolina |
| 50 | L. T. Sanders | 12 | Son | — | South Carolina |
| 51 | Eugene Sanders | 9 | Son | — | South Carolina |
| 52 | Rosanna Jackson | 74 | Mother-in-law | — | South Carolina |
| 53 | J. Lynn Crawford | 64 | Head | Jeweler | Pennsylvania |
| 54 | Amanda Crawford | 63 | Wife | — | Indiana |
| 55 | Charlie Cassidy | 57 | Head | Farm Operator | South Carolina |
| 56 | Mary Cassidy THIS PERSON | 52 | Wife | Servant | South Carolina |
| 57 | Maggie Cassidy | 28 | Daughter | Field Hand | South Carolina |
| 58 | Sylvester Cassidy | 26 | Son | Laborer | South Carolina |
| 59 | James Cassidy | 24 | Son | Laborer | South Carolina |
| 60 | Mary Cassidy | 18 | Daughter | — | South Carolina |
| 61 | Cal Cassidy | 17 | Son | Laborer | South Carolina |
| 62 | Elbert Cassidy | 16 | Son | Laborer | South Carolina |
| 63 | Florence Cassidy | 14 | Daughter | — | South Carolina |
| 64 | Louise Cassidy | 13 | Daughter | — | South Carolina |
| 65 | Elias Cassidy | 11 | Daughter | — | South Carolina |
| 66 | Marie Cassidy | 9 | Daughter | — | South Carolina |
| 67 | Lawrence C. Reid | 53 | Head | Farm Operator | South Carolina |
| 68 | Edell K. Reid | 54 | Wife | — | South Carolina |
| 69 | King Reid | 23 | Son | Laborer | South Carolina |
| 70 | Julia Williams | 53 | Head | Field Hand | South Carolina |
| 71 | Willie Williams | 30 | Son | Laborer | South Carolina |
| 72 | Benjamin Williams | 21 | Son | Laborer | South Carolina |
| 73 | Lorena Williams | 19 | Daughter-in-law | — | South Carolina |
| 74 | Maggie Williams | 25 | Daughter | Servant | South Carolina |
| 75 | Ruth Howard | 10 | Niece | — | South Carolina |
| 76 | Henry Johnson | 65 | Head | Farm Operator | South Carolina |
| 77 | Gilletta Johnson | 56 | Wife | Field Hand | South Carolina |
| 78 | Lottie Johnson | 26 | Daughter | Servant | South Carolina |
| 79 | Otis Johnson | 15 | Son | Field Hand | South Carolina |
| 80 | Warren Guillepi|Guillepie | 17 | Son | Laborer | South Carolina |
Related Census Records
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)