MK
Mary Knox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pike-County, Alabama
Our Model Tree links this Mary Knox across the 1930 and 1940 US Censuses in Pike-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Alabama |
| Surname | Knox |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Class of Worker | NP |
| Hours Worked | 8 |
| Highest Grade | No 10 |
| 1935 Residence | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 7 |
| Est. Birth Year | ~1923 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Amanda Knox | Spouse | — | 38 | ~1902 |
| Gladys Knox | Daughter | — | 15 | ~1925 |
| Friendly Knox | Daughter | — | 2 | ~1938 |
| J Knox | Son | — | 10 | ~1930 |
| Samuel Knox | Son | — | 4 | ~1936 |
| J Knox | Head | — | 46 | ~1894 |
| Mary Knox | Daughter | — | 17 | ~1923 |
| W Knox | Son | — | 8 | ~1932 |
| Mildred Knox | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Pike, Alabama
Daughter, age 7
Pike, Alabama · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Pike-County, Alabama
Daughter, age 17
Pike-County, Alabama · implied b. ~1923 — 9 household members
| Surname | Knox |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Pike |
| Class of Worker | NP |
| Hours Worked | 8 |
| Highest Grade | No 10 |
| 1935 Residence | Alabama |
| 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 Knox across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knox
Daughter · 1940 · age 17 · b. ~1923 · Alabama
★ You are viewing this record
Sibling
Mildred Knox
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Knox
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Friendly Knox
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
W Knox
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Knox
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Knox
Sibling · 1940 · age 4
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 — Pike-County, Alabama
Open full size
1940 US Federal Census — Pike-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00075-00520)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mitchel Pugh | 45 | Head | Farmer | Alabama |
| 2 | Essie Pugh | 40 | Wife | Farmer | Alabama |
| 3 | Ada Lou Pugh | 21 | Daughter | — | Alabama |
| 4 | Cefus Pugh | 15 | Son | — | Alabama |
| 5 | Bernice S. Pugh | 13 | Son | — | Alabama |
| 6 | Benny L. Pugh | 12 | Son | — | Alabama |
| 7 | John H. Pugh | 10 | Son | — | Alabama |
| 8 | J. P. Pugh | 9 | Son | — | Alabama |
| 9 | Henry Lee Pugh | 8 | Son | — | Alabama |
| 10 | Gwinnelee Pugh | 6 | Daughter | — | Alabama |
| 11 | Richard Pugh | 5 | Son | — | Alabama |
| 12 | Essie Lee Pugh | 5 | Granddaughter | — | Alabama |
| 13 | May E. Pugh | 2 | Daughter | — | Alabama |
| 14 | J. B. W. Knox | 46 | Head | Farmer | Alabama |
| 15 | Amanda Knox | 38 | Wife | Farmer | Alabama |
| 16 | Mary H. Knox THIS PERSON | 17 | Daughter | — | Alabama |
| 17 | Gladys Knox | 15 | Daughter | — | Alabama |
| 18 | J. B. Jr. Knox | 10 | Son | — | Alabama |
| 19 | W. T. Knox | 8 | Son | — | Alabama |
| 20 | Mildred Knox | 6 | Daughter | — | Alabama |
| 21 | Samuel Knox | 4 | Son | — | Alabama |
| 22 | Friendly Jane Knox | 2 | Daughter | — | Alabama |
| 23 | Palace Herring | 47 | Head | New Worker | Alabama |
| 24 | Wizzie Herring | 40 | Wife | — | Alabama |
| 25 | Billie Herring | 18 | Son | New Worker | Alabama |
| 26 | Lucia Tompkins | 37 | Head | Saw Filer | Alabama |
| 27 | Nina Tompkins | 34 | Wife | — | Alabama |
| 28 | Ralph Tompkins | 13 | Son | — | Alabama |
| 29 | Nellie R. Tompkins | 11 | Daughter | — | Alabama |
| 30 | Dex Tompkins | 9 | Son | — | Alabama |
| 31 | Millie Tompkins | 6 | Daughter | — | Alabama |
| 32 | Reiter Harris | 46 | Head | Farmer | Alabama |
| 33 | Lillie Harris | 39 | Wife | Farmer | Alabama |
| 34 | Mary Ida Harris | 9 | Daughter | — | Alabama |
| 35 | Jani Harris | 7 | Daughter | — | Alabama |
| 36 | Haston Harris | 5 | Son | — | Alabama |
| 37 | Joel Harris | 4 | Son | — | Alabama |
| 38 | Annie Gene Harris | 2 | Daughter | — | Alabama |
| 39 | Verdel Lucas | 28 | Son-in-law | Farmer | Alabama |
| 40 | Ethermay Lucas | 16 | Daughter | — | 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)