RN
Roy Nelson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Sioux, Iowa
Our Model Tree links this Roy Nelson across the 1910, 1920 and 1930 US Censuses in Sioux, Iowa (XGBoost, ~Confirmed), with identified parents Chris & Anna — first a son (b.~1897), then head of a 6-person household.
Age 23
b. ~1897
Male
Son
Born: South Dakota
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Sioux, Iowa |
| Surname | Nelson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Farm Laborer |
| Township / Ward | Logan Township |
| 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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Roy | Age | Birth yr |
|---|---|---|---|---|
| Anna Nelson | Spouse | — | 40 | ~1880 |
| Roy Nelson | Son | — | 23 | ~1897 |
| Chris Nelson | Head | — | 45 | ~1875 |
| Edward Smith | Other | — | 23 | ~1897 |
| Idella Nelson | Daughter | — | 16 | ~1904 |
| Julia Smith | Daughter | — | 20 | ~1900 |
Census Appearances
1910
Cass, Iowa
Son, age 13
Cass, Iowa · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Roy E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1920
Sioux, Iowa
Son, age 23
Sioux, Iowa · implied b. ~1897 — 6 household members
| Surname | Nelson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Occupation | Farm Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1930
Sioux, Iowa
Head, age 32
Sioux, Iowa · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nilson |
| Given Name | Roy E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 25 |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | South Dakota |
| Occupation | Truck Driver |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 2700 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Roy Nelson across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father Chris Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence) and mother Anna Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Chris Nelson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Anna Nelson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Nelson
Son · 1920 · age 23 · b. ~1897 · Iowa
★ You are viewing this record
Sibling
Julia Smith
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Idella Nelson
Sibling · 1920 · age 16
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
1920 US Federal Census — Sioux, Iowa
Open full size
1920 US Federal Census — Sioux, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu514unit:0868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William H. Edmunds | 63 | Head | Farmer | Canada |
| 2 | Christina Edmunds | 53 | Wife | — | Canada |
| 3 | Christopher E. Barton | 39 | Son-in-law | Farm Laborer | Missouri |
| 4 | Bessie L. Barton | 33 | Daughter | — | Canada |
| 5 | Edmund E. Barton | 1 | Grandson | — | Iowa |
| 6 | Matt Doctor | 48 | Head | Farmer | Illinois |
| 7 | Mary C. Doctor | 46 | Wife | — | Pennsylvania |
| 8 | Frederick C. Doctor | 17 | Son | Laborer | South Dakota |
| 9 | Paul E. Doctor | 11 | Son | — | Iowa |
| 10 | George E. Doctor | 7 | Son | — | Iowa |
| 11 | Helen G. Doctor | 5 | Daughter | — | Iowa |
| 12 | John A. Trinter | 55 | Brother-in-law | — | Pennsylvania |
| 13 | Chris Nelson | 45 | Head | Farmer | South Dakota |
| 14 | Anna S. Nelson | 40 | Wife | — | South Dakota |
| 15 | Roy E. Nelson THIS PERSON | 23 | Son | Farm Laborer | South Dakota |
| 16 | Idella Nelson | 16 | Daughter | — | South Dakota |
| 17 | Julia O. Smith | 20 | Daughter | School Teacher | South Dakota |
| 18 | Edward C. Smith | 23 | Son-in-law | Farm Laborer | Iowa |
| 19 | William G. Kircher | 43 | Head | Farmer | Illinois |
| 20 | Elizabeth Kircher | 72 | Mother | — | Germany |
| 21 | Catharine E. Kircher | 32 | Sister | Housekeeper | Illinois |
| 22 | Daniel Roman | 33 | Head | Farmer | Iowa |
| 23 | Margaret E. Roman | 24 | Wife | — | Denmark |
| 24 | Margaret A. Roman | 3 | Daughter | — | Iowa |
| 25 | Bernice A. Roman | 2 | Daughter | — | Iowa |
| 26 | Ellen L. Roman | 0 | Daughter | — | Iowa |
| 27 | Walter P. Jensen | 20 | Hired man | Farm Laborer | Denmark |
| 28 | Victor P. Anderson | 43 | Head | Farmer | Sweden |
| 29 | Mary Anderson | 41 | Wife | — | South Dakota |
| 30 | Myrtle L. Anderson | 17 | Daughter | — | Iowa |
| 31 | Edna E. Anderson | 13 | Daughter | — | Iowa |
| 32 | Fern E. Anderson | 7 | Daughter | — | South Dakota |
| 33 | Viola L. Anderson | 3 | Daughter | — | South Dakota |
| 34 | Alva S. Reed | 55 | Hired man | Farm Laborer | Illinois |
| 35 | Dina Katze | 42 | Head | Farmer | Holland |
| 36 | Gerrit Katze | 21 | Son | Farm Laborer | New Jersey |
| 37 | Bertha Katze | 16 | Daughter | — | New Jersey |
| 38 | Harry Katze | 12 | Son | — | New Jersey |
| 39 | Dina Katze | 9 | Daughter | — | New Jersey |
| 40 | Henrietta Katze | 5 | Daughter | — | Iowa |
| 41 | Kora Katze | 3 | Son | — | Iowa |
| 42 | Carl Johnson | 53 | Head | Farmer | Germany |
| 43 | Freda Johnson | 46 | Wife | — | Germany |
| 44 | William H. Johnson | 21 | Son | Farm Laborer | Iowa |
| 45 | Edith H. Johnson | 20 | Daughter | — | Iowa |
| 46 | George F. Johnson | 17 | Son | — | Iowa |
| 47 | Amelia M. Johnson | 13 | Daughter | — | Iowa |
| 48 | Joel V. Hills | 48 | Head | Farm Manager | Missouri |
| 49 | Danae E. Hills | 49 | Wife | — | Iowa |
| 50 | Grover B. Jones | 33 | Head | Farmer | Iowa |
Pedigree Summary
Roy + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)