MB
Martha Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charleston-County, South Carolina
Our Model Tree links this Martha Brown across the 1920, 1930 and 1940 US Censuses in Charleston-County, South Carolina (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 3-person household.
Age 63
b. ~1877
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Charleston-County, South Carolina |
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 63 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Charleston |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Farm Laborer |
| Township / Ward | Johns Island Township |
| Est. Birth Year | ~1877 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Nelson Brown | Head | — | 62 | ~1878 |
| Herbert Brown | Son | — | 29 | ~1911 |
| Martha Brown | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Charleston, South …
Spouse, age 43
Charleston, South Carolina · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Charleston, South …
Other, age 54
Charleston, South Carolina · implied b. ~1876 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 22 |
| 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 |
1940
Charleston-County, South …
Spouse, age 63
Charleston-County, South Carolina · implied b. ~1877 — 3 household members
| Surname | Brown |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 63 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (County) | Charleston |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 10 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 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 Martha Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Brown
Spouse · 1940 · age 63 · b. ~1877 · South Carolina
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Charleston-County, South Carolina
Open full size
1940 US Federal Census — Charleston-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03796-00023)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Lewis Francis | 5 | Daughter | — | South Carolina |
| 42 | Alonzo Francis | 5 | Grand Son | — | South Carolina |
| 43 | Brown, Florence Francis | 5 | Daughter | Servant | South Carolina |
| 44 | John D. Krauss | 58 | Head | Proprietor | Russia |
| 45 | Eugenia Krauss | 51 | Wife | — | South Carolina |
| 46 | Howard Krauss | 24 | Son | Sales Supervisor | New York |
| 47 | Marguerite Krauss | 18 | Daughter | — | South Carolina |
| 48 | Gabriel Cole | 60 | Head | Laborer | South Carolina |
| 49 | Elizabeth Cole | 50 | Wife | Farm Laborer | South Carolina |
| 50 | Ida Cole | 23 | Daughter | Farm Laborer | South Carolina |
| 51 | Henry D. Cole | 19 | Son | Laborer | South Carolina |
| 52 | Eugene Cole | 18 | Son | Laborer | South Carolina |
| 53 | Florrie B. Cole | 16 | Daughter | — | South Carolina |
| 54 | Cyrus White | 34 | Head | Truck Driver | South Carolina |
| 55 | Victoria White | 55 | Wife | Farm Laborer | South Carolina |
| 56 | Victoria White | 12 | Daughter | — | South Carolina |
| 57 | Isaac White | 10 | Son | — | South Carolina |
| 58 | Walter White | 7 | Son | — | South Carolina |
| 59 | Carlene White | 4 | Daughter | — | South Carolina |
| 60 | Edward White | 26 | Brother | Laborer | South Carolina |
| 61 | Minnie Thomas | 45 | Lodger | 48 | Florida |
| 62 | Robert D. Simmons | 71 | Head | Farmer | South Carolina |
| 63 | Mary Brown | 36 | Head | — | South Carolina |
| 64 | Estelle Brown | 19 | Daughter | Servant | South Carolina |
| 65 | Eleanor Brown | 16 | Daughter | Farm Laborer | South Carolina |
| 66 | James Brown | 3 | Son | — | South Carolina |
| 67 | Lillian Brown | 1 | Daughter | — | South Carolina |
| 68 | Marie Brown | 12 | Daughter | — | South Carolina |
| 69 | Abraham Singleton | 34 | Brother | Laborer | South Carolina |
| 70 | Nelson Brown | 62 | Head | Farmer | South Carolina |
| 71 | Martha Brown THIS PERSON | 63 | Wife | Farm Laborer | South Carolina |
| 72 | Herbert Brown | 29 | Son | — | South Carolina |
| 73 | Thomas Brown | 56 | Head | Farmer | South Carolina |
| 74 | Anna Brown | 40 | Wife | — | South Carolina |
| 75 | Christopher Brown | 20 | Son | Laborer | South Carolina |
| 76 | Lawrence Brown | 18 | Son | Farm Laborer | South Carolina |
| 77 | Catherine Brown | 10 | Daughter | — | South Carolina |
| 78 | Thomas Brown | 7 | Son | — | South Carolina |
| 79 | Isaiah Murral | 55 | Head | — | South Carolina |
| 80 | Lucinda Murral | 45 | Wife | — | 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)