EN
Ethel Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this Ethel Nelson across the 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | Nelson |
| Given Name | Ethel M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pymosa Twp. |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | PW |
| Income (1939) | 349 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | Pymosa Twp |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ethel | Age | Birth yr |
|---|---|---|---|---|
| Margaret Nelson | Daughter | — | 12 | ~1928 |
| Ethel Nelson | Daughter | — | 18 | ~1922 |
| Howard Nelson | Son | — | 21 | ~1919 |
| Myrtle Nelson | Daughter | — | 15 | ~1925 |
| Patricia Nelson | Daughter | — | 5 | ~1935 |
| Arthur Nelson | Head | — | 48 | ~1892 |
| Glenn Nelson | Son | — | 23 | ~1917 |
| Elmer Nelson | Son | — | 24 | ~1916 |
| Emma Nelson | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Cass, Iowa
Daughter, age 8
Cass, Iowa · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Ethel M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| 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
Cass-County, Iowa
Daughter, age 18
Cass-County, Iowa · implied b. ~1922 — 9 household members
| Surname | Nelson |
| Given Name | Ethel M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Pymosa Twp. |
| 1935 Residence (County) | Cass |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | PW |
| Income (1939) | 349 |
| Highest Grade | H-4 |
| 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 Ethel Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ethel Nelson
Daughter · 1940 · age 18 · b. ~1922 · Iowa
★ You are viewing this record
Sibling
Glenn Nelson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Nelson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Nelson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Nelson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Nelson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Nelson
Sibling · 1940 · age 21
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-t0627-01145-00510)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alfred C. Jensen | 30 | Head | Farm | Iowa |
| 42 | Ada P. Jensen | 28 | Wife | — | Iowa |
| 43 | Arnold J. Jensen | 3 | Son | — | — |
| 44 | Norman Jensen | 20 | Hired man | Hired Hand | Iowa |
| 45 | William M. Nelson | 38 | Head | Farm | Iowa |
| 46 | Lillie E. Nelson | 29 | Wife | — | Iowa |
| 47 | Mary A. Nelson | 3 | Daughter | — | — |
| 48 | Raymond J. Nelson | 34 | Brother | Farm | Iowa |
| 49 | John D. Meader | 66 | Head | Farm | Iowa |
| 50 | Rose J. Meader | 44 | Wife | — | Illinois |
| 51 | Harry C. Hubert | 46 | Head | Farm | Iowa |
| 52 | Marie Hubert | 42 | Wife | — | Iowa |
| 53 | Robert Renwick | 18 | Hired man | Hired Hand | Iowa |
| 54 | John D. Westphalen | 57 | Head | Farm | Germany |
| 55 | Dagmar M. Westphalen | 53 | Wife | — | Denmark |
| 56 | Dale J. Westphalen | 27 | Head | Farm | Iowa |
| 57 | Olive A. Westphalen | 23 | Wife | — | Iowa |
| 58 | Roland Kruse | 18 | Hired man | Hired Hand | Iowa |
| 59 | Christie A. Nelson | 66 | Head | Farm | Iowa |
| 60 | Nellie A. Nelson | 66 | Wife | — | Illinois |
| 61 | Eva S. Nelson | 30 | Daughter | — | Iowa |
| 62 | Arthur J. Nelson | 48 | Head | Farm | Iowa |
| 63 | Emma S. Nelson | 48 | Wife | — | Iowa |
| 64 | Elmer L. Nelson | 24 | Son | Farm | Iowa |
| 65 | Glenn V. Nelson | 23 | Son | Farm | Iowa |
| 66 | Howard S. Nelson | 21 | Son | Farm | Iowa |
| 67 | Ethel M. Nelson THIS PERSON | 18 | Daughter | Teacher | Iowa |
| 68 | Myrtle N. Nelson | 15 | Daughter | — | Iowa |
| 69 | Margaret V. Nelson | 12 | Daughter | — | Iowa |
| 70 | Patricia A. Nelson | 5 | Daughter | — | — |
| 71 | George D. Petersen | 56 | Head | Farm | Iowa |
| 72 | Lillian V. Petersen | 39 | Wife | — | Iowa |
| 73 | Morris J. Petersen | 18 | Son | Farm | Iowa |
| 74 | Margaret J. Petersen | 15 | Daughter | — | Iowa |
| 75 | Marilyn J. Petersen | 3 | Daughter | — | — |
| 76 | Louis P. Eighardt | 64 | Head | Farm | Iowa |
| 77 | Emma A. Eighardt | 53 | Wife | — | Iowa |
| 78 | Blanche C. Eighardt | 28 | Daughter | — | Iowa |
| 79 | Paul L. Eighardt | 27 | Son | Farm | Iowa |
| 80 | Earl G. Eighardt | 24 | Son | Farm | Iowa |
Related Census Records
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)