MK
Mary Knox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Beckham-County, Oklahoma
Our Model Tree links this Mary Knox across the 1930 and 1940 US Censuses in Beckham-County, Oklahoma (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 9-person household.
Age 33
b. ~1907
Female
Spouse
Born: Arkansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Beckham-County, Oklahoma |
| Surname | Knox |
| Given Name | Mary Louise |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Elk City |
| 1935 Residence (County) | Beckham |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Elk City |
| Est. Birth Year | ~1907 |
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 |
|---|---|---|---|---|
| Mary Knox | Spouse | — | 33 | ~1907 |
| Lillian Knox | Daughter | — | 7 | ~1933 |
| Coy Knox | Son | — | ~1940 | |
| Betty Knox | Daughter | — | 9 | ~1931 |
| Jackie Knox | Son | — | 2 | ~1938 |
| Earl Knox | Head | — | 35 | ~1905 |
| Mary Knox | Daughter | — | 5 | ~1935 |
| Margaret Knox | Other | — | 14 | ~1926 |
| Anna Knox | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Beckham, Oklahoma
Other, age 23
Beckham, Oklahoma · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | Mary L. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Arkansas |
| Age at First Marriage | 18 |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Beckham-County, Oklahoma
Spouse, age 33
Beckham-County, Oklahoma · implied b. ~1907 — 9 household members
| Surname | Knox |
| Given Name | Mary Louise |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Arkansas |
| 1935 Residence (City) | Elk City |
| 1935 Residence (County) | Beckham |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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.
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This person
Anchor record
Mary Knox
Spouse · 1940 · age 33 · b. ~1907 · Oklahoma
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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 — Beckham-County, Oklahoma
Open full size
1940 US Federal Census — Beckham-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03276-00263)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Deloys Volk | 7 | Daughter | — | Oklahoma |
| 2 | Anna Volk | 5 | Daughter | — | Oklahoma |
| 3 | J. D. Volk | 2 | Son | — | Oklahoma |
| 4 | Baxter Volk | 57 | Head | — | Wisconsin |
| 5 | Leonard D. Brunk | 60 | Head | Salesman | Kansas |
| 6 | Susan D. Brunk | 56 | Wife | — | Kansas |
| 7 | Cecil Ida Mcbee | 37 | Daughter | — | Oklahoma |
| 8 | Arthur Dean Mcbee | 14 | Grand-son | — | Oklahoma |
| 9 | Donald Lee Mcbee | 9 | Grand-son | — | Oklahoma |
| 10 | Darrel Lee Mcbee | 8 | Grand-son | — | Oklahoma |
| 11 | Leonard Thomas Mcbee | 3 | Grand-son | — | Oklahoma |
| 12 | John Mcbee | 0 | Grand-son | — | Oklahoma |
| 13 | Annie Jones | 73 | Head | Clerk | Texas |
| 14 | Mollisa Parlee Jones | 90 | Mother | — | Tennessee |
| 15 | Glen M. Layton | 36 | Head | Track Work | Oklahoma |
| 16 | Annie Lee Layton | 32 | Wife | — | Texas |
| 17 | Dillmon Layton | 4 | Son | — | Oklahoma |
| 18 | Lyndon Layton | 2 | Son | — | Oklahoma |
| 19 | Earl Woytch Knox | 35 | Head | Track Work | Oklahoma |
| 20 | Mary Louise Knox THIS PERSON | 33 | Wife | — | Arkansas |
| 21 | Margaret Beth Knox | 14 | Step-Daughter | — | Oklahoma |
| 22 | Anna Kathryn Knox | 11 | Daughter | — | Oklahoma |
| 23 | Betty Faylene Knox | 9 | Daughter | — | Oklahoma |
| 24 | Lillian Rose Knox | 7 | Daughter | — | Oklahoma |
| 25 | Mary Jane Knox | 5 | Daughter | — | Oklahoma |
| 26 | Jackie Allen Clye Knox | 2 | Son | — | Oklahoma |
| 27 | Coy Gene Knox | 0 | Son | — | Oklahoma |
| 28 | Carl Thomas Whitworth | 49 | Head | Railroad | Tennessee |
| 29 | Lula Whitworth | 46 | Wife | — | Texas |
| 30 | Alliene Whitworth | 27 | Daughter | Book Keeper | Texas |
| 31 | Roy Lee Whitworth | 26 | Son | Carpenter | Oklahoma |
| 32 | R. L. Wilmoth | 63 | Head | — | Kansas |
| 33 | Ester Wilmoth | 60 | Wife | — | Oklahoma |
| 34 | Robert Wilmoth | 24 | Son | — | Oklahoma |
| 35 | Marie Wilmoth | 21 | Daughter-in-law | — | Arkansas |
| 36 | Margie Ann Blackman | 4 | Grand-Daughter | — | Oklahoma |
| 37 | Saxie E. Mcneal | 68 | Head | — | Indiana |
| 38 | Aurel Mcneal | 46 | Daughter | Clerk | Missouri |
| 39 | Marie L. Sherwood | 36 | Daughter | Operator | Oklahoma |
| 40 | J. D. Bennett | 73 | Head | — | Tennessee |
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)