JS
John Stone — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this John Stone across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed), with identified parents Elmer & Elmer — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Stone |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Liberty Twp. |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Liberty Twp |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elva Stone | Daughter | — | 27 | ~1913 |
| Ruth Stone | Daughter | — | 19 | ~1921 |
| Elmer Stone | Head | — | 64 | ~1876 |
| John Stone | Son | — | 26 | ~1914 |
| Effie Stone | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Marion, Iowa
Son, age 5
Marion, Iowa · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stone |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marion, Iowa
Son, age 15
Marion, Iowa · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Stone |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Son, age 26
Marion-County, Iowa · implied b. ~1914 — 5 household members
| Surname | Stone |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Liberty Twp. |
| 1935 Residence (County) | Marion |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Stone across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elmer Stone (~0.92 confidence) and father Elmer Stone (~0.92 confidence) and father Colomer Stone (~0.92 confidence) and mother Effie Stone (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elmer Stone
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Elmer Stone
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Colomer Stone
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Effie Stone
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Stone
Son · 1940 · age 26 · b. ~1914 · Iowa
★ You are viewing this record
Sibling
Elva Stone
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Stone
Sibling · 1940 · age 19
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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00633)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Ross Laduun|Ladunn | 29 | Wife | Housewife | Iowa |
| 2 | Margaret Jane Laduun|Ladunn | 1 | Daughter | — | Iowa |
| 3 | Clarence Little | 22 | Head | Coal Miner | Iowa |
| 4 | Agnes Little | 15 | Wife | Housewife | Iowa |
| 5 | H. D. Little | 2 | Son | — | Iowa |
| 6 | William Helmick | 26 | Head | Truck Driver | Iowa |
| 7 | Lila Helmick | 25 | Wife | Housewife | Iowa |
| 8 | Robert Helmick | 6 | Son | — | Iowa |
| 9 | James M. Ellis | 44 | Head | Farmer | Iowa |
| 10 | Mary Ellis | 42 | Wife | Housewife | Iowa |
| 11 | H. D. Ellis | 22 | Son | Farmer | Iowa |
| 12 | Howard Ellis | 20 | Son | Farmer | Iowa |
| 13 | Elmer Stone | 64 | Head | Farmer | Iowa |
| 14 | Effie Stone | 59 | Wife | Housewife | Iowa |
| 15 | Elva Stone | 27 | Daughter | School Teacher | Iowa |
| 16 | John Stone THIS PERSON | 26 | Son | Farmer | Iowa |
| 17 | Ruth Stone | 19 | Daughter | — | Iowa |
| 18 | Perry Feagins | 35 | Head | Farmer | Iowa |
| 19 | Mildred Feagins | 28 | Wife | Housewife | Iowa |
| 20 | Alice Feagins | 7 | Daughter | — | Iowa |
| 21 | Charles Feagins | 4 | Son | — | Iowa |
| 22 | Paul Feagins | 3 | Son | — | Iowa |
| 23 | Rufus Feagins | 66 | Head | Farmer | Iowa |
| 24 | Lettie Feagins | 62 | Wife | Housewife | Iowa |
| 25 | Nora Brigham | 54 | Hired Hand | Farm Hand | Iowa |
| 26 | Morris Parker | 44 | Head | Farmer | Missouri |
| 27 | Ruth Parker | 30 | Wife | Housewife | Iowa |
| 28 | Elaine Parker | 16 | Daughter | — | Iowa |
| 29 | Lonnie Jr. Parker | 10 | Son | — | Iowa |
| 30 | John Parker | 7 | Son | — | Iowa |
| 31 | Betty Parker | 5 | Daughter | — | Iowa |
| 32 | Floyd Baker | 42 | Head | Farmer | Iowa |
| 33 | Gladys Baker | 40 | Wife | Housewife | Iowa |
| 34 | Bernice Mae Baker | 19 | Daughter | — | Iowa |
| 35 | Betty Jean Baker | 17 | Daughter | — | Iowa |
| 36 | Charles Dunsmore | 29 | Head | Coal Miner | Iowa |
| 37 | Vina Dunsmore | 28 | Wife | Housewife | Iowa |
| 38 | Barbara Dunsmore | 7 | Daughter | — | Iowa |
| 39 | Betty Dunsmore | 4 | Daughter | — | Iowa |
| 40 | Fred Drake | 39 | Head | Truck Driver | Iowa |
Pedigree Summary
John + 2 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)