MU
Mary Underwood — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Barbour-County, Alabama
Our Model Tree links this Mary Underwood across the 1920, 1930 and 1940 US Censuses in Barbour-County, Alabama (XGBoost, ~Confirmed) — first a spouse (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Female
Spouse
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Barbour-County, Alabama |
| Surname | Underwood |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 5 |
| 1935 Residence (County) | Barbour |
| Additional Details | |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 5 |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Underwood | Spouse | — | 30 | ~1910 |
| Rufus Underwood | Head | — | 36 | ~1904 |
| John Underwood | Son | — | 12 | ~1928 |
| Annie Underwood | Daughter | — | 8 | ~1932 |
| Ella Underwood | Daughter | — | 6 | ~1934 |
| Oscar Underwood | Son | — | 10 | ~1930 |
| Mattie Underwood | Daughter | — | 13 | ~1927 |
Census Appearances
1920
Barbour, Alabama
Other, age 14
Barbour, Alabama · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Barbour, Alabama
Other, age 25
Barbour, Alabama · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | Mary |
| Relationship to Head | Wife H |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Alabama |
| Age at First Marriage | 20 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Barbour-County, Alabama
Spouse, age 30
Barbour-County, Alabama · implied b. ~1910 — 7 household members
| Surname | Underwood |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 5 |
| 1935 Residence (County) | Barbour |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Underwood across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Underwood
Spouse · 1940 · age 30 · b. ~1910 · Alabama
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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 — Barbour-County, Alabama
Open full size
1940 US Federal Census — Barbour-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00003-00324)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George D Allen | 38 | Head | Farmer | Alabama |
| 42 | Orrie Allen | 30 | Wife | — | Alabama |
| 43 | Ethel Allen | 16 | Daughter | Labour | Alabama |
| 44 | Mabel Allen | 13 | Daughter | — | Alabama |
| 45 | George Jr Allen | 8 | Son | — | Alabama |
| 46 | Anna Allen | 4 | Daughter | — | Alabama |
| 47 | Sylvester Allen | 2 | Son | — | Alabama |
| 48 | Ezekiel Jackson | 28 | Head | Labour | Alabama |
| 49 | Mary Jackson | 28 | Wife | — | Alabama |
| 50 | Marly Jackson | 8 | Daughter | — | Alabama |
| 51 | Willie Jackson | 5 | Son | — | Alabama |
| 52 | Carrie Jackson | 3 | Daughter | — | Alabama |
| 53 | Louisa Jackson | 1 | Daughter | — | Alabama |
| 54 | B. S. Hatfield | 59 | Head | Manage | Alabama |
| 55 | Ivie Hatfield | 50 | Wife | — | Alabama |
| 56 | Mary D Speed | 45 | Head | Farmer | Alabama |
| 57 | Lucile Speed | 26 | Daughter | Labour | Alabama |
| 58 | Erylene Speed | 17 | Daughter | Labour | Alabama |
| 59 | Dave Speed | 14 | Son | Labour | Alabama |
| 60 | Martha Speed | 13 | Daughter | — | Alabama |
| 61 | Mary Speed | 1 | Granddaughter | — | Alabama |
| 62 | Rufus Underwood | 36 | Head | Farmer | Alabama |
| 63 | Mary Underwood THIS PERSON | 30 | Wife | — | Alabama |
| 64 | Mattie Underwood | 13 | Daughter | — | Alabama |
| 65 | John Underwood | 12 | Son | — | Alabama |
| 66 | Oscar Underwood | 10 | Son | — | Alabama |
| 67 | Annie Underwood | 8 | Daughter | — | Alabama |
| 68 | Ella Underwood | 6 | Daughter | — | Alabama |
| 69 | Henry D Mccoy | 55 | Head | Farmer | Alabama |
| 70 | Daisy Mccoy | 49 | Wife | — | Alabama |
| 71 | Ishmel Mccoy | 16 | Son | Labour | Alabama |
| 72 | Haywood Parish | 35 | Head | Farmer | Alabama |
| 73 | Nell Parish | 32 | Wife | — | Alabama |
| 74 | Willie Parish | 11 | Son | — | Alabama |
| 75 | John D Rachel | 23 | Head | Farmer | Alabama |
| 76 | Lonnie Rachel | 23 | Wife | — | Alabama |
| 77 | Mildred Rachel | 3 | Daughter | — | Alabama |
| 78 | Emma Rachel | 0 | Daughter | — | Alabama |
| 79 | Well D Jockem | 54 | Head | Farmer | Alabama |
| 80 | Lula Jockem | 42 | Wife | — | Alabama |
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)