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William Knapp — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stone-County, Arkansas
Our Model Tree links this William Knapp across the 1930 and 1940 US Censuses in Stone-County, Arkansas (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Male
Son
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stone-County, Arkansas |
| Surname | Knapp |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Smart Township |
| 1935 Residence (County) | Stone |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 49 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Occupation | Farm Laborer |
| Township / Ward | Smart Township |
| Est. Birth Year | ~1924 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Floyd Knapp | Son | — | 12 | ~1928 |
| Pearl Knapp | Spouse | — | 44 | ~1896 |
| Dellie Knapp | Daughter | — | 14 | ~1926 |
| Hullyn Knapp | Son | — | 3 | ~1937 |
| Floyd Knapp | Head | — | 42 | ~1898 |
| Dorothy Knapp | Daughter | — | 7 | ~1933 |
| William Knapp | Son | — | 16 | ~1924 |
Census Appearances
1930
Stone, Arkansas
Son, age 6
Stone, Arkansas · implied b. ~1924 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knapp |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Stone-County, Arkansas
Son, age 16
Stone-County, Arkansas · implied b. ~1924 — 7 household members
| Surname | Knapp |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Smart Township |
| 1935 Residence (County) | Stone |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 49 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 William Knapp across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Knapp
Son · 1940 · age 16 · b. ~1924 · Arkansas
★ You are viewing this record
Sibling
Hullyn Knapp
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dellie Knapp
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Knapp
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Knapp
Sibling · 1940 · age 12
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 — Stone-County, Arkansas
Open full size
1940 US Federal Census — Stone-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00177-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Louise Deller | 13 | Daughter | — | Arkansas |
| 42 | Ruth Deller | 12 | Daughter | — | Arkansas |
| 43 | Fay Deller | 8 | Daughter | — | Arkansas |
| 44 | Barbara Deller | 4 | Daughter | — | Arkansas |
| 45 | Howard Wells | 43 | Head | Farmer | Arkansas |
| 46 | Howard Ray Wells | 13 | Son | — | Arkansas |
| 47 | Doris Jean Wells | 12 | Daughter | — | Arkansas |
| 48 | Barnit B. Cline | 29 | Head | Farmer | Alabama |
| 49 | Myrtle Cline | 25 | Wife | — | Texas |
| 50 | Vileta May Cline | 2 | Daughter | — | Arkansas |
| 51 | Marvin O. Cline | 53 | Head | Laborer | Alabama |
| 52 | Carry Cline | 50 | Wife | — | Alabama |
| 53 | Clide Cline | 14 | Son | Laborer | Texas |
| 54 | Eunice Cline | 12 | Daughter | — | Texas |
| 55 | G. P. Cline | 8 | Son | — | Texas |
| 56 | Rasco A. Nix | 43 | Head | Farmer | Arkansas |
| 57 | Rhody Nix | 41 | Wife | — | Arkansas |
| 58 | Pearl Nix | 19 | Daughter | — | Oklahoma |
| 59 | Theo Nix | 13 | Daughter | — | Texas |
| 60 | Lorene Nix | 11 | Daughter | — | Texas |
| 61 | Gentry Lee Nix | 5 | Son | — | Arkansas |
| 62 | Ralph Hurst | 40 | Head | Farmer | Missouri |
| 63 | Inez O. Hurst | 32 | Wife | — | Arkansas |
| 64 | Helen Hurst | 13 | Daughter | — | Arkansas |
| 65 | Dovie Hurst | 10 | Daughter | — | Arkansas |
| 66 | John W. Hurst | 8 | Son | — | Arkansas |
| 67 | Imojean Hurst | 5 | Daughter | — | Arkansas |
| 68 | Donald Hurst | 3 | Son | — | Arkansas |
| 69 | Delmer Hurst | 3 | Son | — | Arkansas |
| 70 | Ralph Jr. Hurst | 2 | Son | — | Arkansas |
| 71 | Floyd O. Knapp | 42 | Head | Farmer | Oklahoma |
| 72 | Pearl Knapp | 44 | Wife | — | Arkansas |
| 73 | William Knapp THIS PERSON | 16 | Son | Farm Laborer | Arkansas |
| 74 | Dellie Knapp | 14 | Daughter | — | Arkansas |
| 75 | Floyd Jr. Knapp | 12 | Son | — | Arkansas |
| 76 | Dorothy Fay Knapp | 7 | Daughter | — | Arkansas |
| 77 | Hullyn Knapp | 3 | Son | — | Arkansas |
| 78 | Albert O. Prince | 43 | Head | Farmer | Missouri |
| 79 | Arena Prince | 45 | Wife | — | Missouri |
| 80 | Marvin Prince | 19 | Son | Laborer | Arkansas |
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)