MC
Mary Caldwell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Fairfield, South Carolina
Our Model Tree links this Mary Caldwell across the 1920 and 1930 US Censuses in Fairfield, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 9-person household.
Age 48
b. ~1882
Female
Spouse
Born: South Carolina
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Fairfield, South Carolina |
| Surname | Caldwell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 18 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Township 7 |
| Est. Birth Year | ~1882 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thelma Caldwell | Daughter | — | 4 | ~1926 |
| Thelma Caldwell | Daughter | — | 17 | ~1913 |
| Annie Caldwell | Daughter | — | 10 | ~1920 |
| Lucille Caldwell | Daughter | — | 8 | ~1922 |
| Eunice Caldwell | Daughter | — | 6 | ~1924 |
| Austin Caldwell | Head | — | 50 | ~1880 |
| Leroy Caldwell | Son | — | 14 | ~1916 |
| Austin Caldwell | Son | — | 12 | ~1918 |
| Mary Caldwell | Spouse | — | 48 | ~1882 |
Census Appearances
1920
Fairfield, South …
Spouse, age 37
Fairfield, South Carolina · implied b. ~1883 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mulatto |
| Age | 37 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Farm Lab |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Fairfield, South …
Spouse, age 48
Fairfield, South Carolina · implied b. ~1882 — 9 household members
| Surname | Caldwell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 18 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| 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 Caldwell across 2 US Census years (1920 and 1930) in Fairfield, South Carolina, using XGBoost record linkage.
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This person
Anchor record
Mary Caldwell
Spouse · 1930 · age 48 · b. ~1882 · South Carolina
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Fairfield, South Carolina
Open full size
1930 US Federal Census — Fairfield, South Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2196unit:0170)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary A. Spender | 65 | Head | — | South Carolina |
| 2 | Mattie Spender | 64 | Sister | — | South Carolina |
| 3 | Julia Spender | 57 | Sister | — | South Carolina |
| 4 | Maggie T. Spender | 55 | Sister | — | South Carolina |
| 5 | Lawrence Vassa | 47 | Head | Farmer | South Carolina |
| 6 | Jan Vassa | 17 | Son | Laborer | South Carolina |
| 7 | Lucy Vassa | 14 | Daughter | — | South Carolina |
| 8 | Arthur Vassa | 12 | Son | — | South Carolina |
| 9 | Robert Vaughan | 49 | Head | Farmer | South Carolina |
| 10 | Mary Vaughan | 45 | Wife | — | South Carolina |
| 11 | Louise Harts | 55 | Head | Farmer | South Carolina |
| 12 | James H. Gray | 26 | Daughter | — | South Carolina |
| 13 | Annie Mae Gray | 7 | Granddaughter | — | South Carolina |
| 14 | Cally James Gray | 5 | Grandson | — | South Carolina |
| 15 | Walker Fludd | 24 | Head | Farmer | South Carolina |
| 16 | Daisy M. Fludd | 20 | Wife | — | South Carolina |
| 17 | Austin Caldwell | 50 | Head | Farmer | South Carolina |
| 18 | Mary Caldwell THIS PERSON | 48 | Wife | — | South Carolina |
| 19 | Thelma Caldwell | 17 | Daughter | — | South Carolina |
| 20 | Leroy Caldwell | 14 | Son | — | South Carolina |
| 21 | Austin Jr. Caldwell | 12 | Son | — | South Carolina |
| 22 | Annie Caldwell | 10 | Daughter | — | South Carolina |
| 23 | Lucille Caldwell | 8 | Daughter | — | South Carolina |
| 24 | Eunice Caldwell | 6 | Daughter | — | South Carolina |
| 25 | Thelma Caldwell | 4 | Daughter | — | South Carolina |
| 26 | Isaac Palmer | 49 | Head | Farmer | South Carolina |
| 27 | Gertrude Palmer | 45 | Wife | — | South Carolina |
| 28 | Isaac Jr. Palmer | 23 | Son | Laborer | South Carolina |
| 29 | Thelma Palmer | 21 | Daughter | — | South Carolina |
| 30 | William Palmer | 19 | Son | Laborer | South Carolina |
| 31 | Dorothy Palmer | 17 | Daughter | — | South Carolina |
| 32 | Austin Palmer | 15 | Son | Laborer | South Carolina |
| 33 | James Palmer | 13 | Son | — | South Carolina |
| 34 | Mary Palmer | 11 | Daughter | — | South Carolina |
| 35 | Maggie Palmer | 9 | Daughter | — | South Carolina |
| 36 | John Palmer | 7 | Son | — | South Carolina |
| 37 | Henry Palmer | 5 | Son | — | South Carolina |
| 38 | William Harrison | 48 | Head | Farmer | South Carolina |
| 39 | Mary Harrison | 43 | Wife | — | South Carolina |
| 40 | James Harrison | 16 | Son | Laborer | South Carolina |
| 41 | William Harrison | 14 | Son | — | South Carolina |
| 42 | Mary Harrison | 12 | Daughter | — | South Carolina |
| 43 | Annie B. Johnson | 24 | Head | Farmer | South Carolina |
| 44 | Lula Johnson | 22 | Sister | — | South Carolina |
| 45 | Sophie Lee Johnson | 18 | Sister | — | South Carolina |
| 46 | Willie Johnson | 16 | Brother | Laborer | South Carolina |
| 47 | Rogers Smith | 23 | Head | Farmer | South Carolina |
| 48 | Mary Smith | 22 | Wife | — | South Carolina |
| 49 | Thelma J. Smith | 2 | Daughter | — | South Carolina |
| 50 | Amanda Alston | 15 | Daughter | — | 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)