JU
John Underwood — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Perry-County, Alabama
Our Model Tree links this John Underwood across the 1930 and 1940 US Censuses in Perry-County, Alabama (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Perry-County, Alabama |
| Surname | Underwood |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Marion City |
| Additional Details | |
| Occupation | Porter |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 52 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Porter |
| Township / Ward | Marion City |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mattie Underwood | Daughter | — | 5 | ~1935 |
| John Underwood | Head | — | 36 | ~1904 |
| Robert Underwood | Son | — | 12 | ~1928 |
| Walter Underwood | Daughter | — | 7 | ~1933 |
| Callie Underwood | Spouse | — | 28 | ~1912 |
| Marie Underwood | Daughter | — | 16 | ~1924 |
| William Underwood | Son | — | 11 | ~1929 |
| John Underwood | Son | — | 14 | ~1926 |
Census Appearances
1930
Perry, Alabama
Other, age 5
Perry, Alabama · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John C. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Perry-County, Alabama
Son, age 14
Perry-County, Alabama · implied b. ~1926 — 8 household members
| Surname | Underwood |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Marion City |
| Occupation | Porter |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 52 |
| Highest Grade | No 2 |
| 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 John Underwood across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Underwood
Son · 1940 · age 14 · b. ~1926 · Alabama
★ You are viewing this record
Sibling
Walter Underwood
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Underwood
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Underwood
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Underwood
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Underwood
Sibling · 1940 · age 11
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
1940 US Federal Census — Perry-County, Alabama
Open full size
1940 US Federal Census — Perry-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00073-00059)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Janis Moore | 2 | Daughter | — | Alabama |
| 42 | Clifton Henderson | 37 | Head | Laborer | Alabama |
| 43 | Lizzie Henderson | 29 | Wife | — | Alabama |
| 44 | Claudette Henderson | 3 | Daughter | — | Alabama |
| 45 | John Tubbs | 52 | Head | — | Alabama |
| 46 | Herbert Moore | 25 | Head | Laborer | Alabama |
| 47 | Leah Moore | 24 | Wife | — | Alabama |
| 48 | Emma Lou Bell | 25 | Head | Cook | Alabama |
| 49 | Lucy Mae Lockett | 10 | Daughter | — | Alabama |
| 50 | Evelyn Underwood | 19 | Lodger | — | Alabama |
| 51 | James Washington | 19 | Nephew | Helper | Alabama |
| 52 | John Underwood | 36 | Head | Laborer | Alabama |
| 53 | Callie Underwood | 28 | Wife | Laundress | Alabama |
| 54 | Marie Underwood | 16 | Daughter | — | Alabama |
| 55 | John H. Underwood THIS PERSON | 14 | Son | Porter | Alabama |
| 56 | Robert Underwood | 12 | Son | — | Alabama |
| 57 | William Underwood | 11 | Son | — | Alabama |
| 58 | Walter Mae Underwood | 7 | Daughter | — | Alabama |
| 59 | Mattie Bell Underwood | 5 | Daughter | — | Alabama |
| 60 | Mattie Phillipe | 34 | Head | Seamstress | Alabama |
| 61 | Crawford Tubbs | 14 | Son | — | Alabama |
| 62 | Jim Field | 35 | Head | Laborer | Alabama |
| 63 | Elnora Field | 30 | Wife | — | Alabama |
| 64 | Mary Field | 12 | Daughter | — | Alabama |
| 65 | James Field | 10 | Son | — | Alabama |
| 66 | Leroy Field | 7 | Son | — | Alabama |
| 67 | Rosie Field | 4 | Daughter | — | Alabama |
| 68 | Willie H. Field | 8 | Son | — | Alabama |
| 69 | Hudson Oliver | 34 | Head | 0 | Alabama |
| 70 | Lizzie Oliver | 32 | Wife | Cook | Alabama |
| 71 | Dollie Billingsley | 40 | Head | — | Alabama |
| 72 | Carl Jr. Moore | 33 | Head | Janitor | Alabama |
| 73 | Eliza Moore | 30 | Wife | Laundress | Alabama |
| 74 | Rosa Marie Moore | 8 | Daughter | — | Alabama |
| 75 | Charles Moore | 6 | Son | — | Alabama |
| 76 | Lawrence Moore | 5 | Son | — | Alabama |
| 77 | Marjorie C. Moore | 3 | Daughter | — | Alabama |
| 78 | Mattie Robert Moore | 1 | Daughter | — | Alabama |
| 79 | Mack Sanders | 56 | Head | Street Cleaner | Alabama |
| 80 | Josephine Sanders | 50 | Wife | Laundress | Alabama |
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)