JW
John Williamson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pontotoc-County, Oklahoma
Our Model Tree links this John Williamson across the 1920, 1930 and 1940 US Censuses in Pontotoc-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.
Age 55
b. ~1885
Male
Head
Born: Texas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pontotoc-County, Oklahoma |
| Surname | Williamson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Francis Township |
| 1935 Residence (County) | Pontotoc |
| Additional Details | |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Farmer |
| Township / Ward | Francis Township |
| Est. Birth Year | ~1885 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Williamson | Head | — | 55 | ~1885 |
| Sherman Williamson | Son | — | 19 | ~1921 |
| Jessie Williamson | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Pontotoc, Oklahoma
Head, age 34
Pontotoc, Oklahoma · implied b. ~1886 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Arkansas |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Pontotoc, Oklahoma
Head, age 44
Pontotoc, Oklahoma · implied b. ~1886 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Texas |
| Age at First Marriage | 20 |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | No |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Pontotoc-County, Oklahoma
Head, age 55
Pontotoc-County, Oklahoma · implied b. ~1885 — 3 household members
| Surname | Williamson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Texas |
| 1935 Residence (City) | Francis Township |
| 1935 Residence (County) | Pontotoc |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Williamson
Head · 1940 · age 55 · b. ~1885 · 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 — Pontotoc-County, Oklahoma
Open full size
1940 US Federal Census — Pontotoc-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03326-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Samuell Mitchel | 52 | Lodger | Driller | Arkansas |
| 2 | George H. Lilly | 66 | Head | Farmer | Texas |
| 3 | Lola M. Lilly | 51 | Wife | — | Missouri |
| 4 | John A. Williamson THIS PERSON | 55 | Head | Farmer | Texas |
| 5 | Jessie M. Williamson | 54 | Wife | — | Oklahoma |
| 6 | Sherman L. Williamson | 19 | Son | Farm Laborer | Oklahoma |
| 7 | Oscar J. O. Nickerson | 43 | Head | Farmer | Oklahoma |
| 8 | Tommie J. Nickerson | 42 | Wife | — | Texas |
| 9 | Charley J. Nickerson | 20 | Son | Farm Laborer | Oklahoma |
| 10 | Marion E. Nickerson | 18 | Son | Farm Laborer | Oklahoma |
| 11 | Alma L. Nickerson | 16 | Daughter | Farm Laborer | Oklahoma |
| 12 | Gilbert L. Nickerson | 15 | Son | Farm Laborer | Oklahoma |
| 13 | John W. Nickerson | 13 | Son | — | Oklahoma |
| 14 | Alfred F. Nickerson | 11 | Son | — | Oklahoma |
| 15 | William Nickerson | 9 | Son | — | Oklahoma |
| 16 | Mary E. Nickerson | 5 | Daughter | — | Oklahoma |
| 17 | Ritchie Nickerson | 1 | Daughter | — | Oklahoma |
| 18 | Lewis W. Larson | 63 | Head | Drilling Contractor | Wisconsin |
| 19 | Lenora S. Larson | 57 | Wife | — | Minnesota |
| 20 | Richard N. Larson | 26 | Son | Laborer | Minnesota |
| 21 | Hugo M. Larson | 25 | Son | Laborer | Wisconsin |
| 22 | Doris M. Larson | 23 | Daughter-in-law | — | Oklahoma |
| 23 | Hugo M. Larson | 3 | Grandson | — | Oklahoma |
| 24 | Agnes M. Williamson | 45 | Head | — | Oklahoma |
| 25 | Raymond F. Williamson | 24 | Son | Farmer | Oklahoma |
| 26 | Everett L. Williamson | 21 | Son | Farm Laborer | Oklahoma |
| 27 | Eddie Williamson | 20 | Daughter-in-law | — | Oklahoma |
| 28 | Mary L. Williamson | 1 | Granddaughter | — | Oklahoma |
| 29 | George L. Mansfield | 36 | Head | Farmer | Missouri |
| 30 | Joyce P. Mansfield | 19 | Wife | — | Oklahoma |
| 31 | Clarence F. Kelly | 21 | Brother-in-law | Farm Laborer | Oklahoma |
| 32 | Augustine A. Kelly | 17 | Sister-in-law | — | Oklahoma |
| 33 | John L. Roper | 67 | Head | Farmer | Oklahoma |
| 34 | Eva B. Roper | 59 | Wife | — | Oklahoma |
| 35 | Sam C. Roper | 23 | Son | Farm Laborer | Oklahoma |
| 36 | Neal J. Mcdonald | 46 | Head | Farmer | Tennessee |
| 37 | Addie M. Mcdonald | 38 | Wife | — | Texas |
| 38 | Jewel A. Mcdonald | 15 | Daughter | — | Oklahoma |
| 39 | Mabel A. Mcdonald | 13 | Daughter | — | Oklahoma |
| 40 | Dorathy L. Mcdonald | 10 | Daughter | — | Oklahoma |
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)