CD
Charles Day — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Humboldt-County, Iowa
Our Model Tree links this Charles Day across the 1920, 1930 and 1940 US Censuses in Humboldt-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Humboldt-County, Iowa |
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Beaver Twp |
| 1935 Residence (County) | Humboldt |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Beaver Twp |
| Est. Birth Year | ~1900 |
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 Charles | Age | Birth yr |
|---|---|---|---|---|
| Paul Anglum | Other | — | 46 | ~1894 |
| Ruth Day | Daughter | — | 18 | ~1922 |
| Charles Day | Head | — | 40 | ~1900 |
| Edna Day | Spouse | — | 40 | ~1900 |
| Earl Day | Son | — | 17 | ~1923 |
Census Appearances
1920
Humboldt, Iowa
Head, age 20
Humboldt, Iowa · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Humboldt, Iowa
Head, age 30
Humboldt, Iowa · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Charles L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | New York |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5 |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Humboldt-County, Iowa
Head, age 40
Humboldt-County, Iowa · implied b. ~1900 — 5 household members
| Surname | Day |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Beaver Twp |
| 1935 Residence (County) | Humboldt |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 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 Charles Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Day
Head · 1940 · age 40 · b. ~1900 · 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 — Humboldt-County, Iowa
Open full size
1940 US Federal Census — Humboldt-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01167-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clifford O Saddoris | 48 | Head | Farmer | Iowa |
| 2 | Mamie Saddoris | 47 | Wife | — | Iowa |
| 3 | Percy Saddoris | 51 | Brother | Farm Laborer | Iowa |
| 4 | Laur O Soppeland | 57 | Head | Laborer | Illinois |
| 5 | Anna M Soppeland | 53 | Wife | — | Illinois |
| 6 | Doty Betty L Soppeland | 13 | Daughter | — | Iowa |
| 7 | Knute Gord | 86 | Father-in-law | — | Norway |
| 8 | Albert Thalacker | 66 | Head | — | Wisconsin |
| 9 | Elara O Thalacker | 62 | Wife | — | Wisconsin |
| 10 | Louis D Fort | 39 | Head | Farmer | Kansas |
| 11 | Eva Fort | 39 | Wife | — | Iowa |
| 12 | Delores Fort | 14 | Daughter | — | Iowa |
| 13 | Murry Fort | 12 | Son | — | Iowa |
| 14 | Merlin Fort | 11 | Son | — | Iowa |
| 15 | Will Anselment | 52 | Head | Farmer | Illinois |
| 16 | Nora O Anselment | 46 | Wife | — | Iowa |
| 17 | William Jr Anselment | 11 | Son | — | Iowa |
| 18 | Bernard Watts | 25 | Step-son | Farm Laborer | Iowa |
| 19 | Berton Watts | 22 | Step-son | Salesman | Iowa |
| 20 | Marlin Maassen | 22 | Head | Truck Driver | Iowa |
| 21 | Iola R Maassen | 21 | Wife | — | Iowa |
| 22 | Clyde D Boore | 68 | Head | Farmer | Iowa |
| 23 | Gertrude Boore | 62 | Wife | — | Minnesota |
| 24 | Phillip Lane | 27 | Step-son | Laborer | Indiana |
| 25 | Ruth Lane | 24 | Daughter-in-law | — | Iowa |
| 26 | Sue Ellen Lane | 0 | Granddaughter | — | Iowa |
| 27 | H. B. Crandall | 67 | Father-in-law | Helper | Minnesota |
| 28 | Elmer Crandall | 63 | Brother-in-law | Helper | Minnesota |
| 29 | Charles Foley | 28 | Hired Hand | Farm Laborer | Iowa |
| 30 | Charles Day THIS PERSON | 40 | Head | Farmer | Iowa |
| 31 | Edna P Day | 40 | Wife | — | Iowa |
| 32 | Ruth Day | 18 | Daughter | — | Iowa |
| 33 | Earl Day | 17 | Son | — | Iowa |
| 34 | Paul Anglum | 46 | Hired Hand | Farm Laborer | Iowa |
| 35 | Anton D Stoebe | 57 | Head | Farmer | Iowa |
| 36 | Myrtle Stoebe | 51 | Wife | — | Iowa |
| 37 | Edith Stoebe | 25 | Daughter | Superintendent | Iowa |
| 38 | Harlyn A. B. Stoebe | 20 | Son | — | Iowa |
| 39 | Betty Erikson | 16 | Niece | — | Iowa |
| 40 | Charles Whipple | 21 | Hired Hand | — | Iowa |
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)