DN
Donald Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this Donald Nelson across the 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | Nelson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Highest Grade | G 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Atlantic City |
| Est. Birth Year | ~1930 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Patricia Nelson | Daughter | — | 6 | ~1934 |
| Darlene Nelson | Daughter | — | 8 | ~1932 |
| James Nelson | Head | — | 36 | ~1904 |
| Donald Nelson | Son | — | 10 | ~1930 |
| Dorothy Nelson | Daughter | — | 9 | ~1931 |
| Roger Nelson | Son | — | 2 | ~1938 |
| Rose Nelson | Spouse | — | 33 | ~1907 |
| Marilyn Nelson | Daughter | — | 4 | ~1936 |
Census Appearances
1930
Cass, Iowa
Son, age 1
Cass, Iowa · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Son, age 10
Cass-County, Iowa · implied b. ~1930 — 8 household members
| Surname | Nelson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic city |
| 1935 Residence (County) | Cass |
| Highest Grade | G 3 |
| 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 Donald Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Nelson
Son · 1940 · age 10 · b. ~1930 · Iowa
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Sibling
Darlene Nelson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Nelson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Nelson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Nelson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Nelson
Sibling · 1940 · age 2
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
38 people indexed on this census page (nara:1940:m-t0627-01145-00020)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James D. Nelson | 36 | Head | Project Supervisor | Iowa |
| 42 | Rose D. Nelson | 33 | Wife | — | Iowa |
| 43 | Donald Nelson THIS PERSON | 10 | Son | — | Iowa |
| 44 | Dorothy Nelson | 9 | Daughter | — | Iowa |
| 45 | Darlene Nelson | 8 | Daughter | — | Iowa |
| 46 | Patricia Nelson | 6 | Daughter | — | Iowa |
| 47 | Marilyn Nelson | 4 | Daughter | — | Iowa |
| 48 | Roger Nelson | 2 | Son | — | Iowa |
| 49 | Fred Poch | 46 | Head | Janitor | Iowa |
| 50 | Florence D. Poch | 36 | Wife | — | Iowa |
| 51 | Clyde Jr. Woolsey | 19 | Step Son | — | Iowa |
| 52 | Norma J. Woolsey | 15 | Step Daughter | — | Iowa |
| 53 | Donna J. Poch | 14 | Daughter | — | Iowa |
| 54 | Harold F. Poch | 12 | Son | — | Iowa |
| 55 | Shirley A. Poch | 9 | Daughter | — | Iowa |
| 56 | Rose Marie Poch | 8 | Daughter | — | Iowa |
| 57 | Edwin R. Towne | 32 | Head | Proprietor | Iowa |
| 58 | Mary Towne | 23 | Wife | — | Iowa |
| 60 | Richard D. Anderson | 43 | Head | Engineer | Iowa |
| 61 | Fern Anderson | 39 | Wife | — | Iowa |
| 62 | Norma Anderson | 14 | Daughter | — | Iowa |
| 63 | Kenneth Anderson | 12 | Son | — | Iowa |
| 64 | Richard Jr. Anderson | 7 | Son | — | Iowa |
| 65 | Gerald Anderson | 6 | Son | — | Iowa |
| 66 | John M. Reason | 68 | Head | Retired Farmer | Indiana |
| 67 | Katie D. Reason | 64 | Wife | — | Iowa |
| 68 | Rex Wright | 36 | Head | Poultry Packer | Iowa |
| 69 | Doris Wright | 29 | Wife | Egg Grader | Iowa |
| 71 | Leo Cushing | 22 | Head | Truck Driver | Minnesota |
| 72 | Myrtle D. Cushing | 22 | Wife | Secretary | Iowa |
| 73 | Janice Cushing | 2 | Daughter | — | Iowa |
| 74 | Rinehart Ruhl | 60 | Head | Janitor | Missouri |
| 75 | Julia Ruhl | 53 | Wife | — | Iowa |
| 76 | Lawrence Ruhl | 22 | Son | Deliveryman | Iowa |
| 77 | Mildred Ruhl | 15 | Daughter | — | Iowa |
| 78 | Carl Jenkins | 41 | Head | Truck Driver | Iowa |
| 79 | Lela D. Jenkins | 34 | Wife | — | Missouri |
| 80 | Clair R. Jenkins | 18 | 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)