JN
James Nichols — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this James Nichols across the 1920, 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 8-person household.
Age 43
b. ~1897
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | Nichols |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pottawattamie |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Edna Twp |
| Est. Birth Year | ~1897 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Ashley Nichols | Daughter | — | 14 | ~1926 |
| Carol Nichols | Daughter | — | 17 | ~1923 |
| Miriam Nichols | Daughter | — | 11 | ~1929 |
| James Nichols | Head | — | 43 | ~1897 |
| Kendle Nichols | Son | — | 13 | ~1927 |
| Charles Nichols | Son | — | 5 | ~1935 |
| Dean Nichols | Son | — | 3 | ~1937 |
| Anna Nichols | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Cass, Iowa
Other, age 23
Cass, Iowa · implied b. ~1897 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | James E. |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | England |
| Occupation | Partner |
| Industry | General farm |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cass, Iowa
Other, age 33
Cass, Iowa · implied b. ~1897 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | James F. |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | England |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | O |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Head, age 43
Cass-County, Iowa · implied b. ~1897 — 8 household members
| Surname | Nichols |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Pottawattamie |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Iowa |
| 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 Nichols across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Nichols
Head · 1940 · age 43 · b. ~1897 · 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 — Cass-County, Iowa
Open full size
1940 US Federal Census — Cass-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01145-00286)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Leonard Ogden | 23 | hired-man | Laborer | Iowa |
| 42 | Virgil A. Yafanty | 33 | head | Farmer | Iowa |
| 43 | Edna B. Yafanty | 29 | wife | Farmer | Iowa |
| 44 | Robert Yafanty | 10 | son | — | Iowa |
| 45 | Richard Yafanty | 8 | son | — | Iowa |
| 46 | James Nichols THIS PERSON | 43 | head | Farmer | Iowa |
| 47 | Anna Nichols | 43 | wife | — | Iowa |
| 48 | Carol Nichols | 17 | daughter | — | Iowa |
| 49 | Ashley Nichols | 14 | daughter | — | Iowa |
| 50 | Kendle Nichols | 13 | son | — | Iowa |
| 51 | Miriam Nichols | 11 | daughter | — | Iowa |
| 52 | Charles Nichols | 5 | son | — | Iowa |
| 53 | Dean Nichols | 3 | son | — | Iowa |
| 54 | Fred B. Schrier | 76 | head | Unable To Work | Germany |
| 55 | Mary Schrier | 59 | wife | — | Iowa |
| 56 | Elmer Schrier | 34 | son | Farmer | South Dakota |
| 57 | Frank M. Schrier | 28 | son | Farmer | Iowa |
| 58 | Alvid Erickson | 42 | head | Farmer | Iowa |
| 59 | Agnes Erickson | 37 | wife | — | Iowa |
| 60 | Rudzell Erickson | 19 | son | Farmer | Iowa |
| 61 | Ralph Anderson | 49 | head | Farmer | Iowa |
| 62 | Lillie Anderson | 50 | wife | — | Iowa |
| 63 | Helen Anderson | 17 | daughter | — | Iowa |
| 64 | Cliff T. Kay | 48 | head | Farmer | Iowa |
| 65 | Marcia Kay | 47 | wife | — | Iowa |
| 66 | Aletha Kay | 24 | daughter | Teacher | Iowa |
| 67 | Helen Kay | 18 | daughter | — | Iowa |
| 68 | Frank Helton | 50 | head | Farmer | Iowa |
| 69 | Mary Alice Helton | 55 | wife | — | Iowa |
| 70 | Ralph Hilyard | 47 | head | Farmer | Iowa |
| 71 | Ida Mae Hilyard | 50 | wife | — | Missouri |
| 72 | Pearl Hilyard | 18 | daughter | — | Iowa |
| 73 | Donald Hilyard | 15 | son | — | Iowa |
| 74 | Filbur South | 34 | head | Farmer | Iowa |
| 75 | Geneva South | 33 | wife | — | Iowa |
| 76 | Clair South | 10 | son | — | Iowa |
| 77 | Delmar South | 3 | son | — | Iowa |
| 78 | Claude Brindley | 31 | head | Farmer | Iowa |
| 79 | Margaret Brindley | 24 | wife | — | Montana |
| 80 | Retta Marie Brindley | 3 | daughter | — | 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)