KJ
Kenneth Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Buchanan-County, Iowa
Our Model Tree links this Kenneth Jones across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Iowa (XGBoost, ~Confirmed), with identified parents Walter & Walter — first a son (b.~1912), then head of a 7-person household.
Age 28
b. ~1912
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Iowa |
| Surname | Jones |
| Given Name | Kenneth D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Buchanan |
| 1935 Residence (County) | Buchanan |
| Additional Details | |
| Occupation | Farm |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 130 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm |
| Est. Birth Year | ~1912 |
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 Kenneth | Age | Birth yr |
|---|---|---|---|---|
| Kenneth Jones | Son | — | 28 | ~1912 |
| Iva Jones | Spouse | — | 52 | ~1888 |
| John Jones | Son | — | 23 | ~1917 |
| Walter Jones | Head | — | 64 | ~1876 |
| Donald Jones | Son | — | 26 | ~1914 |
| Wm Jones | Son | — | 32 | ~1908 |
| Elmer North | Other | — | 77 | ~1863 |
Census Appearances
1920
Buchanan, Iowa
Son, age 8
Buchanan, Iowa · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Buchanan, Iowa
Son, age 18
Buchanan, Iowa · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Kenneth |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buchanan-County, Iowa
Son, age 28
Buchanan-County, Iowa · implied b. ~1912 — 7 household members
| Surname | Jones |
| Given Name | Kenneth D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Buchanan |
| 1935 Residence (County) | Buchanan |
| Occupation | Farm |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 130 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Kenneth Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Walter Jones (~0.92 confidence) and father Walter Jones (~0.92 confidence) and mother Iva Jones (~0.92 confidence) and mother Lucy Jones (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walter Jones
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Walter Jones
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Iva Jones
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Lucy Jones
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Kenneth Jones
Son · 1940 · age 28 · b. ~1912 · Iowa
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Sibling
John Jones
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wm Jones
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Jones
Sibling · 1940 · age 26
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 — Buchanan-County, Iowa
Open full size
1940 US Federal Census — Buchanan-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01142-00932)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bert D. Smith | 59 | Head | Salesman | Iowa |
| 42 | Ellen J. Smith | 84 | Mother | — | Wisconsin |
| 43 | Mary A. Cole | 32 | Maid | Assistant | Iowa |
| 44 | Chas. W. Penrose | 60 | Head | Farmer | Iowa |
| 45 | Goldie Penrose | 57 | Wife | — | Iowa |
| 46 | John D. Mayer | 54 | Head | Farmer | Poland |
| 47 | Catherine Mayer | 52 | Wife | — | Poland |
| 48 | Thomas Mayer | 24 | Son | Farmer | Canada |
| 49 | Katherine Mayer | 20 | Daughter | Teacher | Canada |
| 50 | Joseph Mayer | 19 | Son | Farmer | Canada |
| 51 | Mary Mayer | 14 | Daughter | — | Iowa |
| 52 | Agnes Mayer | 13 | Daughter | — | Iowa |
| 53 | Niels T. Steffensen | 52 | Head | Farmer | Denmark |
| 54 | Bessie Steffensen | 47 | Wife | — | Iowa |
| 55 | Walter M. Jones | 64 | Head | Farmer | Illinois |
| 56 | Iva E. Jones | 52 | Wife | — | Iowa |
| 57 | Wm. B. Jones | 32 | Son | Farm | Iowa |
| 58 | Kenneth D. Jones THIS PERSON | 28 | Son | Farm | Iowa |
| 59 | Donald F. Jones | 26 | Son | Farm | Iowa |
| 60 | John L. Jones | 23 | Son | Farmer | Iowa |
| 61 | Elmer E. North | 77 | Uncle | — | Wisconsin |
| 62 | Frank D. Michael | 60 | Head | Farmer | Iowa |
| 63 | Rose Michael | 57 | Wife | — | Iowa |
| 64 | Lawrence Michael | 33 | Son | Farmer | Iowa |
| 65 | Clara Michael | 23 | Daughter | — | Iowa |
| 66 | Leo Michael | 21 | Son | Trucker | Iowa |
| 67 | Chas. E. Quass | 51 | Head | Farmer | Iowa |
| 68 | Meta Quass | 41 | Wife | — | Iowa |
| 69 | Harold Quass | 23 | Son | Trucking & Farming | Iowa |
| 70 | Doris Quass | 20 | Daughter | Teacher | Iowa |
| 71 | Ruth Quass | 16 | Daughter | — | Iowa |
| 72 | Francis O'Brien | 18 | Boarder | Hand Washer | Iowa |
| 73 | Clarence Michael | 31 | Head | Farmer | Iowa |
| 74 | Rita Michael | 22 | Wife | — | Iowa |
| 75 | John Michael | 29 | Head | Farmer | Iowa |
| 76 | Martha Michael | 31 | Wife | — | Iowa |
| 77 | Matt D. Mcgovern | 43 | Head | Farm | Iowa |
| 78 | Bernice Mcgovern | 30 | Wife | — | Iowa |
| 79 | Bernadette Mcgovern | 3 | Daughter | — | — |
| 80 | Mary Mcgovern | 1 | Daughter | — | — |
Related Census Records
Pedigree Summary
Kenneth + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)