JD
James Day — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Story-County, Iowa
Our Model Tree links this James Day across the 1920, 1930 and 1940 US Censuses in Story-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 7-person household.
Age 48
b. ~1892
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Story-County, Iowa |
| Surname | Day |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Grant Twp |
| 1935 Residence (County) | Story |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 166 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Grant Twp |
| Est. Birth Year | ~1892 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Laurene Day | Daughter | — | 20 | ~1920 |
| Wynetta Day | Daughter | — | 15 | ~1925 |
| James Day | Head | — | 48 | ~1892 |
| Lloyd Kline | Other | — | 18 | ~1922 |
| James Day | Son | — | 10 | ~1930 |
| Lloyd Day | Son | — | 6 | ~1934 |
| Mildred Day | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Story, Iowa
Head, age 28
Story, Iowa · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Story, Iowa
Head, age 38
Story, Iowa · implied b. ~1892 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 31500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Story-County, Iowa
Head, age 48
Story-County, Iowa · implied b. ~1892 — 7 household members
| Surname | Day |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Grant Twp |
| 1935 Residence (County) | Story |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 166 |
| Highest Grade | 7 |
| 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 James Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Day
Head · 1940 · age 48 · b. ~1892 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Story-County, Iowa
Open full size
1940 US Federal Census — Story-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01206-00463)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marion Harrison | 41 | Head | Farmer | Iowa |
| 2 | Alma Harrison | 30 | Wife | — | Iowa |
| 3 | Dean Harrison | 11 | Son | — | Iowa |
| 4 | Wayne Harrison | 9 | Son | — | Iowa |
| 5 | Raymond Harrison | 7 | Son | — | Iowa |
| 6 | Floyd Dunshee | 61 | Head | Farming | Iowa |
| 7 | Dick Myers | 39 | Head | Farm Laborer | Okla |
| 8 | Helen Myers | 33 | Wife | — | Iowa |
| 9 | Mary Jo Myers | 2 | Daughter | — | Okla |
| 10 | Carl Hein | 38 | Head | Farmer | Iowa |
| 11 | Marjorie Hein | 31 | Wife | — | Iowa |
| 12 | Ernest Hein | 72 | Father | — | Germany |
| 13 | Ida Hein | 70 | Mother | — | Germany |
| 14 | James Day THIS PERSON | 48 | Head | Farmer | Iowa |
| 15 | Mildred Day | 45 | Wife | — | Iowa |
| 16 | Laurene Day | 20 | Daughter | — | Iowa |
| 17 | Wynetta Day | 15 | Daughter | — | Iowa |
| 18 | James Day | 10 | Son | — | Iowa |
| 19 | Lloyd Day | 6 | Son | — | Iowa |
| 20 | Lloyd Kline | 18 | Hired man | Farm Laborer | Iowa |
| 21 | Frank B. Frink | 62 | Head | Farmer | Iowa |
| 22 | Mattie Frink | 57 | Wife | — | Iowa |
| 23 | Mrs. H. J. Harrison | 67 | Head | — | Wisconsin |
| 24 | Samuel Weir | 77 | Hired man | Farm Laborer | Canada-English |
| 25 | Gordon Bates | 21 | Head | Farmer | Iowa |
| 26 | Jeanette Bates | 23 | Wife | — | Iowa |
| 27 | A. B. Groomes | 28 | Head | Farmer | Illinois |
| 28 | Bessie Groomes | 28 | Wife | — | Iowa |
| 29 | Janis Groomes | 2 | Daughter | — | Iowa |
| 30 | John Betts | 30 | Head | Farm Laborer | Kansas |
| 31 | Rosabell Betts | 24 | Wife | — | Nebraska |
| 32 | George Kaltenheuser | 38 | Head | Farmer | Iowa |
| 33 | Edith Kaltenheuser | 38 | Wife | — | Iowa |
| 34 | Fred Kaltenheuser | 16 | Son | — | Iowa |
| 35 | Edward Kaltenheuser | 25 | Son | — | Iowa |
| 36 | Evelyn Kaltenheuser | 12 | Daughter | — | Iowa |
| 37 | Eva May Kaltenheuser | 10 | Daughter | — | Iowa |
| 38 | Frank Kaltenheuser | 8 | Son | — | Iowa |
| 39 | Helen Jean Kaltenheuser | 6 | Daughter | — | Iowa |
| 40 | J. H. Christy | 46 | Head | Farmer | Illinois |
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)