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Jack Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Smith-County, Kansas
Our Model Tree links this Jack Jones across the 1930 and 1940 US Censuses in Smith-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 10-person household.
Age 21
b. ~1919
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Smith-County, Kansas |
| Surname | Jones |
| Given Name | Jack M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Crystal Plains Township |
| 1935 Residence (County) | Smith |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Crystal Plains Township |
| Est. Birth Year | ~1919 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Barbara Jones | Daughter | — | 7 | ~1933 |
| Francis Jones | Daughter | — | 4 | ~1936 |
| Ellen Jones | Daughter | — | 10 | ~1930 |
| Archie Jones | Head | — | 47 | ~1893 |
| Floyd Jones | Son | — | 13 | ~1927 |
| Warren Jones | Son | — | 17 | ~1923 |
| Paul Jones | Son | — | 2 | ~1938 |
| Jack Jones | Son | — | 21 | ~1919 |
| Leroy Jones | Son | — | 19 | ~1921 |
| Georgia Jones | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Smith, Kansas
Son, age 11
Smith, Kansas · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Jack M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Smith-County, Kansas
Son, age 21
Smith-County, Kansas · implied b. ~1919 — 10 household members
| Surname | Jones |
| Given Name | Jack M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Crystal Plains Township |
| 1935 Residence (County) | Smith |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Jack Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Jones
Son · 1940 · age 21 · b. ~1919 · Kansas
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Sibling
Paul Jones
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Jones
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Jones
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Jones
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Jones
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Jones
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Jones
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 — Smith-County, Kansas
Open full size
1940 US Federal Census — Smith-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01262-00466)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | T. Dill Rorabaugh | 45 | Head | Farmer | Kansas |
| 2 | Leila M. Rorabaugh | 39 | Wife | — | Kansas |
| 3 | Vern V. Rorabaugh | 43 | Son | Farmer | Kansas |
| 4 | Agie F. Rorabaugh | 42 | Wife | — | Kansas |
| 5 | Rudolph Bargman | 54 | Head | Farmer | Ohio |
| 6 | Fredrick L. Bargman | 18 | Son | Farmer | Ohio |
| 7 | Vernon E. Bargman | 10 | Son | — | Kansas |
| 8 | Paul E. Bargman | 6 | Son | — | Kansas |
| 9 | Edmond Crammer | 36 | Head | Farmer | Kansas |
| 10 | Alta M. Crammer | 32 | Wife | — | Kansas |
| 11 | Don E. Crammer | 8 | Son | — | Kansas |
| 12 | Robert D. Crammer | 7 | Son | — | Kansas |
| 13 | Archie Jones | 47 | Head | Farmer | Kansas |
| 14 | Georgia Jones | 42 | Wife | — | Missouri |
| 15 | Jack M. Jones THIS PERSON | 21 | Son | Farmer | Kansas |
| 16 | Leroy E. Jones | 19 | Son | Farmer | Kansas |
| 17 | Warren Jones | 17 | Son | — | Kansas |
| 18 | Floyd D. Jones | 13 | Son | — | Kansas |
| 19 | Ellen J. Jones | 10 | Daughter | — | Kansas |
| 20 | Barbara J. Jones | 7 | Daughter | — | Kansas |
| 21 | Francis E. Jones | 4 | Daughter | — | Kansas |
| 22 | Paul A. Jones | 2 | Son | — | Kansas |
| 23 | Ed E. Mcclaine | 68 | Head | Farmer | Iowa |
| 24 | Elva A. Mcclaine | 63 | Wife | — | Kansas |
| 25 | Lon R. Walters | 50 | Head | Farmer | Nebraska |
| 26 | L. May Walters | 37 | Wife | — | Kansas |
| 27 | Frank S. Parks | 80 | Head | — | Michigan |
| 28 | Fannie O. Parks | 74 | Wife | — | Iowa |
| 29 | Jud H. Vinsonhaler | 71 | Head | — | Iowa |
| 30 | Maggie E. Vinsonhaler | 67 | Wife | — | Iowa |
| 31 | Head Anna E. | None | F | — | — |
| 32 | Son Howard | None | M | Farm | — |
| 33 | Son R. Floyd | None | M | Farm | — |
| 34 | Louis Herredsberg | 43 | Head | Farmer | Denmark |
| 35 | Erna A. Herredsberg | 34 | Wife | — | Kansas |
| 36 | John L. Herredsberg | 2 | Son | — | Kansas |
| 37 | Anna K. Herredsberg | 83 | Aunt | — | Denmark |
| 38 | Ella Cornwell | 76 | Head | — | Ohio |
| 39 | George Hammond | 60 | Head | Farmer | Kansas |
| 40 | Arrena Hammond | 65 | Wife | — | Illinois |
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)