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John Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Crawford-County, Iowa
Our Model Tree links this John Jones across the 1920, 1930 and 1940 US Censuses in Crawford-County, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Iowa |
| Surname | Jones |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington Twp. |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 67 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Operator |
| Township / Ward | Washington Twp |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| Mary Jones | Daughter | — | 1 | ~1939 |
| John Jones | Head | — | 32 | ~1908 |
| Florence Jones | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Crawford, Iowa
Son, age 13
Crawford, Iowa · implied b. ~1907 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Crawford, Iowa
Son, age 22
Crawford, Iowa · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Gen Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Crawford-County, Iowa
Head, age 32
Crawford-County, Iowa · implied b. ~1908 — 3 household members
| Surname | Jones |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Washington Twp. |
| 1935 Residence (County) | Crawford |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 67 |
| Highest Grade | No 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 John Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Jones (~0.92 confidence) and father Charles Jones (~0.92 confidence) and mother Lucille Jones (~0.92 confidence) and mother Myrtle Jones (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Jones
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Charles Jones
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Lucille Jones
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Jones
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Jones
Head · 1940 · age 32 · b. ~1908 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Crawford-County, Iowa
Open full size
1940 US Federal Census — Crawford-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01152-00564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cecil Blum | 20 | Son | Helper | Iowa |
| 42 | Zeno Blum | 19 | Son | Helper | Iowa |
| 43 | Robert Blum | 5 | Son | — | Iowa |
| 44 | Sadie Smith | 59 | Head | — | Iowa |
| 45 | William Smith | 23 | Son | Operator | Iowa |
| 46 | Monica Smith | 21 | Daughter | Servant | Iowa |
| 47 | Joseph Smith | 19 | Son | Helper | Iowa |
| 48 | Eugene Smith | 16 | Son | Helper | Iowa |
| 49 | James Mcandrew | 61 | Brother | — | Iowa |
| 50 | John Zimmer | 51 | Head | Operator | Kansas |
| 51 | Ida Zimmer | 52 | Wife | — | Iowa |
| 52 | Helen D. Zimmer | 20 | Daughter | — | Iowa |
| 53 | Arthur Zimmer | 19 | Son | Helper | Iowa |
| 54 | Delphine Zimmer | 15 | Daughter | — | Iowa |
| 55 | John Jr. Zimmer | 11 | Son | — | Iowa |
| 56 | John Jones THIS PERSON | 32 | Head | Operator | Iowa |
| 57 | Florence Jones | 29 | Wife | — | Iowa |
| 58 | Mary Sue Jones | 1 | Daughter | — | Iowa |
| 59 | Norbert Gross | 29 | Head | Operator | Iowa |
| 60 | Deloris Gross | 22 | Wife | — | Iowa |
| 61 | Thomas Gross | 0 | Son | — | Iowa |
| 62 | Albert Heller | 27 | Head | Operator | Iowa |
| 63 | Henry E. Kohles | 33 | Head | Operator | Iowa |
| 64 | Susan Kohles | 28 | Wife | — | Iowa |
| 65 | Lloyd Hulsebus | 24 | Head | Hired Hand | Iowa |
| 66 | Wilma Hulsebus | 23 | Wife | — | Iowa |
| 67 | Robert Arnold | 24 | Head | Operator | Iowa |
| 68 | Garnet Arnold | 25 | Wife | — | Minnesota |
| 69 | Rose E. Woonen | 76 | Head | — | Iowa |
| 70 | John Woonen | 49 | Son | Operator | Iowa |
| 71 | Edward Lehan | 55 | Nephew | Hired Hand | Iowa |
| 72 | Harry Hueck | 33 | Head | Operator | Iowa |
| 73 | Elizabeth Hueck | 33 | Wife | — | Iowa |
| 74 | Betty Ann Hueck | 10 | Daughter | — | Iowa |
| 75 | Kenneth Hueck | 7 | Son | — | Iowa |
| 76 | Donna Mae Hueck | 3 | Daughter | — | Iowa |
| 77 | Anna C. Hueck | 2 | Daughter | — | Iowa |
| 78 | Hans Dersien | 31 | Hired Hand | Hired Hand | Iowa |
| 79 | James Tate | 42 | Head | Operator | Iowa |
| 80 | Hattie Tate | 40 | Wife | — | Iowa |
Related Census Records
Pedigree Summary
John
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)