MC
Mary Cassidy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Chesterfield, South Carolina
Our Model Tree links this Mary Cassidy across the 1930 and 1940 US Censuses in Chesterfield, South Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 15-person household.
Age 14
b. ~1916
Female
Daughter
Born: South Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Chesterfield, South Carolina |
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Cheraw Township |
| Est. Birth Year | ~1916 |
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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Florence Cassidy | Daughter | — | 10 | ~1920 |
| Alice Cassidy | Daughter | — | 6 | ~1924 |
| Maggie Cassidy | Daughter | — | 18 | ~1912 |
| Marie Cassidy | Daughter | — | 3 | ~1927 |
| Viola Cassidy | Daughter | — | 17 | ~1913 |
| Mary Cassidy | Daughter | — | 14 | ~1916 |
| Addie Cassidy | Daughter | — | 12 | ~1918 |
| Louise Cassidy | Daughter | — | 8 | ~1922 |
| Annie Cassidy | Daughter | — | 16 | ~1914 |
| Jane Cassidy | Daughter | — | 15 | ~1915 |
| Della Cassidy | Daughter | — | 19 | ~1911 |
| Charles Cassidy | Head | — | 43 | ~1887 |
| Calvin Cassidy | Son | — | 13 | ~1917 |
| Elliot Cassidy | Son | — | 11 | ~1919 |
| Mary Cassidy | Spouse | — | 41 | ~1889 |
Census Appearances
1930
Chesterfield, South …
Daughter, age 14
Chesterfield, South Carolina · implied b. ~1916 — 15 household members
| Surname | Cassidy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South 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 …
Daughter, age 24
Chesterfield-County, South Carolina · implied b. ~1916 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Mable |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Chesterfield |
| Industry | 0 |
| Highest Grade | No 6 |
| 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.
Show:
This person
Anchor record
Mary Cassidy
Daughter · 1930 · age 14 · b. ~1916 · South Carolina
★ You are viewing this record
Sibling
Alice Cassidy
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Cassidy
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Cassidy
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Cassidy
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Addie Cassidy
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Cassidy
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Cassidy
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Cassidy
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Della Cassidy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maggie Cassidy
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elliot Cassidy
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Cassidy
Sibling · 1930 · age 13
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
1930 US Federal Census — Chesterfield, South Carolina
Open full size
1930 US Federal Census — Chesterfield, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2192unit:0449)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Georgia Sanders | 17 | Daughter | Farm Laborer | South Carolina |
| 52 | Ernestine Sanders | 1 | Daughter | None | South Carolina |
| 53 | Julia Saunders | 35 | Head | None | South Carolina |
| 54 | George Saunders | 25 | Brother | Farm Laborer | South Carolina |
| 55 | Beni Mcleod | 17 | Neice | None | South Carolina |
| 56 | Fannie Saunders | 12 | Daughter | None | South Carolina |
| 57 | Ella Saunders | 9 | Daughter | None | South Carolina |
| 58 | William Wilson | 81 | Head | None | South Carolina |
| 59 | Mary Wilson | 74 | Wife | None | South Carolina |
| 60 | Gladys Wilson | 12 | Grand Daughter | None | South Carolina |
| 61 | Eugene Wilson | 6 | Grand Son | None | South Carolina |
| 62 | Charles Cassidy | 43 | Head | Farm Laborer | South Carolina |
| 63 | Mary Jane Cassidy | 41 | Wife | None | South Carolina |
| 64 | Della Cassidy | 19 | Daughter | Farm Laborer | South Carolina |
| 65 | Maggie Cassidy | 18 | Daughter | Farm Laborer | South Carolina |
| 66 | Viola Cassidy | 17 | Daughter | Farm Laborer | South Carolina |
| 67 | Annie Cassidy | 16 | Daughter | None | South Carolina |
| 68 | Jane Cassidy | 15 | Daughter | None | South Carolina |
| 69 | Mary Cassidy THIS PERSON | 14 | Daughter | None | South Carolina |
| 70 | Calvin Cassidy | 13 | Son | None | South Carolina |
| 71 | Addie Cassidy | 12 | Daughter | None | South Carolina |
| 72 | Elliot Cassidy | 11 | Son | None | South Carolina |
| 73 | Florence Cassidy | 10 | Daughter | None | South Carolina |
| 74 | Louise Cassidy | 8 | Daughter | None | South Carolina |
| 75 | Alice Cassidy | 6 | Daughter | None | South Carolina |
| 76 | Marie Cassidy | 3 | Daughter | None | South Carolina |
| 77 | Martha Little | 64 | Head | None | South Carolina |
| 78 | Georgiana Little | 20 | Daughter | None | South Carolina |
| 79 | Eddie Hasten | 28 | Head | Farm Laborer | South Carolina |
| 80 | Martha Jane Hasten | 26 | Wife | None | South Carolina |
| 81 | Eddie Jr. Hasten | 10 | Son | None | South Carolina |
| 82 | Louise Hasten | 8 | Daughter | None | South Carolina |
| 83 | Mary Ann Hasten | 6 | Daughter | None | South Carolina |
| 84 | Clinton Little | 7 | Grand Son | None | South Carolina |
| 85 | Junior Little | 5 | Grand Son | None | South Carolina |
| 86 | Cossie Johnson | 22 | Head | Section Hand | North Carolina |
| 87 | Mabel Johnson | 20 | Wife | None | South Carolina |
| 88 | Odell Johnson | 3 | Daughter | None | South Carolina |
| 89 | Alberta Johnson | 1 | Daughter | None | South Carolina |
| 90 | Hanford Mcdenal | 56 | Head | Farmer | South Carolina |
| 91 | Henry Mcdenal | 17 | Son | Farm Laborer | South Carolina |
| 92 | Frank Mcdenal | 15 | Son | None | South Carolina |
| 93 | Bertha Mcdenal | 13 | Daughter | None | South Carolina |
| 94 | Tommie Mcdenal | 9 | Son | None | South Carolina |
| 95 | Willie Ford | 55 | Head | Farm Laborer | South Carolina |
| 96 | Mary Ford | 55 | Wife | None | South Carolina |
| 97 | Isaac Ford | 20 | Son | Farm Laborer | South Carolina |
| 98 | Polly Ford | 22 | Daughter | Farm Laborer | South Carolina |
| 99 | Catharine Ford | 7 | Daughter | None | South Carolina |
| 100 | Emanuel Ford | 18 | Son | Farm Laborer | South Carolina |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)