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Eugene Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this Eugene Brown across the 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | Brown |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Edna Twp |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Edna Twp |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Carol Brown | Daughter | — | 2 | ~1938 |
| Rosella Brown | Daughter | — | 4 | ~1936 |
| Jeanette Brown | Daughter | — | 11 | ~1929 |
| George Brown | Head | — | 37 | ~1903 |
| Eugene Brown | Son | — | 13 | ~1927 |
| George Brown | Son | — | 6 | ~1934 |
| Delbert Brown | Son | — | 8 | ~1932 |
| Lee Brown | Son | — | 14 | ~1926 |
| Neal Brown | Son | — | 9 | ~1931 |
| Bernidette Brown | Spouse | — | 33 | ~1907 |
Census Appearances
1930
Cass, Iowa
Son, age 3
Cass, Iowa · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Son, age 13
Cass-County, Iowa · implied b. ~1927 — 10 household members
| Surname | Brown |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Edna Twp |
| 1935 Residence (County) | Cass |
| 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 Eugene Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eugene Brown
Son · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Rosella Brown
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Brown
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Neal Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Brown
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Brown
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lee Brown
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delbert Brown
Sibling · 1940 · age 8
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 — 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-t0627-01145-00280)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Brown | 37 | Head | Farmer | Iowa |
| 42 | Bernidette Brown | 33 | Wife | — | Iowa |
| 43 | Lee Brown | 14 | Son | — | Iowa |
| 44 | Eugene Brown THIS PERSON | 13 | Son | — | Iowa |
| 45 | Jeanette Brown | 11 | Daughter | — | Iowa |
| 46 | Neal Brown | 9 | Son | — | Iowa |
| 47 | Delbert Brown | 8 | Son | — | Iowa |
| 48 | George Jr. Brown | 6 | Son | — | Iowa |
| 49 | Rosella Brown | 4 | Daughter | — | Iowa |
| 50 | Carol Brown | 2 | Daughter | — | Iowa |
| 51 | B. D. Dower | 49 | Head | Priest | Eire |
| 52 | Ella O'Conner | 69 | Housekeeper | Housekeeping | Nebraska |
| 53 | Lloyd Schrier | 35 | Head | Farmer | North Dakota |
| 54 | Mabel Schrier | 33 | Wife | — | Iowa |
| 55 | Joe Nichols | 43 | Head | Farmer | Illinois |
| 56 | Lillie D. Nichols | 43 | Wife | — | Iowa |
| 57 | Joan Strong | 14 | Granddaughter | — | Iowa |
| 58 | Hamaley Leslie | 60 | Head | Farmer | Iowa |
| 59 | Agnes Leslie | 63 | Wife | — | Iowa |
| 60 | Edwin Perry | 92 | Father-in-law | — | Illinois |
| 61 | James A. Leslie | 34 | Head | Farmer | Iowa |
| 62 | Thelma Leslie | 22 | Wife | — | Iowa |
| 63 | Marilyn Leslie | 2 | Daughter | — | Iowa |
| 64 | Beulah Grimstead | 6 | Sister-in-law | — | Iowa |
| 65 | C. Frank Boos | 38 | Head | Farmer | Iowa |
| 66 | Mabel Boos | 40 | Wife | — | Iowa |
| 67 | Henry Ratheamp | 64 | Head | Farmer | Germany |
| 68 | Augusta Ratheamp | 57 | Wife | — | Iowa |
| 69 | Louis G. Ratheamp | 34 | Son | Farmer | Iowa |
| 70 | Mabel Ratheamp | 27 | Daughter | — | Iowa |
| 71 | Everett Ratheamp | 25 | Son | Farmer | Iowa |
| 72 | Roland Edlen | 32 | Head | Farmer | Iowa |
| 73 | Thelma Edlen | 27 | Wife | — | Iowa |
| 74 | Ronald Edlen | 4 | Son | — | Iowa |
| 75 | Arnold Edlen | 3 | Son | — | Iowa |
| 76 | Donald Edlen | 0 | Son | — | Iowa |
| 77 | Glen Chester | 24 | Head | Farm | Iowa |
| 78 | Ellen Chester | 23 | Wife | — | Iowa |
| 79 | Virginia Chester | 1 | Daughter | — | Iowa |
| 80 | Jerold Chester | 0 | Son | — | 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)