RN
Richard Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cerro-Gordo-County, Iowa
Our Model Tree links this Richard Nelson across the 1930 and 1940 US Censuses in Cerro-Gordo-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 | Cerro-Gordo-County, Iowa |
| Surname | Nelson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Union Twp. |
| 1935 Residence (County) | Cerro Gordo |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Union 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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Janice Nelson | Daughter | — | 9 | ~1931 |
| Melva Nelson | Daughter | — | 7 | ~1933 |
| Leola Nelson | Daughter | — | 18 | ~1922 |
| Shirley Nelson | Daughter | — | 4 | ~1936 |
| Wonka Nelson | Daughter | — | 3 | ~1937 |
| Theodore Nelson | Head | — | 33 | ~1907 |
| Roger Nelson | Son | — | 13 | ~1927 |
| Richard Nelson | Son | — | 13 | ~1927 |
| Darwin Nelson | Son | — | 11 | ~1929 |
| Greene Nelson | Spouse | — | 36 | ~1904 |
Census Appearances
1930
Cerro Gordo, …
Son, age 3
Cerro Gordo, Iowa · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cerro-Gordo-County, Iowa
Son, age 13
Cerro-Gordo-County, Iowa · implied b. ~1927 — 10 household members
| Surname | Nelson |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Union Twp. |
| 1935 Residence (County) | Cerro Gordo |
| Highest Grade | G 7 |
| 1935 Residence | Same house |
| 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 Richard Nelson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Nelson
Son · 1940 · age 13 · b. ~1927 · Iowa
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Sibling
Melva Nelson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Nelson
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darwin Nelson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leola Nelson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Nelson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wonka Nelson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roger Nelson
Sibling · 1940 · age 13
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 — Cerro-Gordo-County, Iowa
Open full size
1940 US Federal Census — Cerro-Gordo-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01146-01229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wayne Basher | 12 | Son | — | Iowa |
| 42 | Clifford Otom | Oton | 30 | Head | Farm Laborer | Missouri |
| 43 | Alma Otom | Oton | 25 | Wife | — | Iowa |
| 44 | Mary Lou Lofson | Lofsen | 5 | Lodger | — | Iowa |
| 45 | Henry Walker | 61 | Head | Farmer | Illinois |
| 46 | Mary Walker | 60 | Wife | — | Denmark |
| 47 | Arthur Grattidge | 51 | Head | Farmer | Iowa |
| 48 | Grace Grattidge | 43 | Wife | — | Iowa |
| 49 | Dorothy Grattidge | 18 | Daughter | — | Iowa |
| 50 | Evelyn Grattidge | 16 | Daughter | New Worker | Iowa |
| 51 | Marjorie Grattidge | 15 | Daughter | New Worker | Iowa |
| 52 | Lois Grattidge | 13 | Daughter | — | Iowa |
| 53 | Lucille Grattidge | 10 | Daughter | — | Iowa |
| 54 | Melvin Grattidge | 9 | Son | — | Iowa |
| 55 | Merle Grattidge | 9 | Son | — | Iowa |
| 56 | Clyde Stanley | 22 | Hired help | Farm Laborer | Iowa |
| 57 | Roy W. Scott | 24 | Head | Farm Laborer | Minnesota |
| 58 | Lila Scott | 23 | Wife | — | Iowa |
| 59 | Jerry Scott | 2 | Son | — | Iowa |
| 60 | Abner Worthington | 27 | Hired help | Farm Laborer | Missouri |
| 61 | Theodore Nelson | 33 | Head | Farmer | Iowa |
| 62 | Greene Nelson | 36 | Wife | — | Iowa |
| 63 | Leola Nelson | 18 | Daughter | New Worker | Iowa |
| 64 | Richard Nelson THIS PERSON | 13 | Son | — | Iowa |
| 65 | Roger Nelson | 13 | Son | — | Iowa |
| 66 | Darwin Nelson | 11 | Son | — | Iowa |
| 67 | Janice Nelson | 9 | Daughter | — | Iowa |
| 68 | Melva Nelson | 7 | Daughter | — | Iowa |
| 69 | Shirley Nelson | 4 | Daughter | — | Iowa |
| 70 | Wonka | Wonla Nelson | 3 | Daughter | — | Iowa |
| 71 | Edward Miles | 53 | Head | Farmer | Iowa |
| 72 | Minnie Miles | 54 | Wife | — | Iowa |
| 73 | Esther Miles | 27 | Daughter | — | Iowa |
| 74 | Leonard Bourcy | 37 | Hired help | Farm Laborer | South Dakota |
| 75 | Charles Tenz | Lenz | 59 | Head | Farmer | Missouri |
| 76 | Ona Tenz | Lenz | 53 | Wife | — | Iowa |
| 77 | Iva Tenz | Lenz | 17 | Daughter | New Worker | Missouri |
| 78 | Harry Cobb | 72 | Hired help | Farm Laborer | Iowa |
| 79 | Tony Tebben | 37 | Head | Farmer | Iowa |
| 80 | Tebben | 31 | Wife | — | 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)