RA
Robert Arnold — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winneshiek-County, Iowa
Our Model Tree links this Robert Arnold across the 1930 and 1940 US Censuses in Winneshiek-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 11-person household.
Age 10
b. ~1930
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winneshiek-County, Iowa |
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Burr Oak twp. |
| 1935 Residence (County) | Winneshiek |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Burr Oak Twp |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Gladys Arnold | Spouse | — | 42 | ~1898 |
| Carmen Arnold | Daughter | — | 18 | ~1922 |
| Dale Arnold | Son | — | 17 | ~1923 |
| Robert Arnold | Son | — | 10 | ~1930 |
| Arland Arnold | Son | — | 16 | ~1924 |
| Janice Arnold | Daughter | — | 2 | ~1938 |
| Norma Arnold | Daughter | — | 4 | ~1936 |
| Daniel Arnold | Son | — | 8 | ~1932 |
| Dwayne Arnold | Son | — | 12 | ~1928 |
| Neal Arnold | Son | — | 6 | ~1934 |
| Lloyd Arnold | Head | — | 39 | ~1901 |
Census Appearances
1930
Winneshiek, Iowa
Son, age
Winneshiek, Iowa · implied b. ~1930 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Winneshiek-County, Iowa
Son, age 10
Winneshiek-County, Iowa · implied b. ~1930 — 11 household members
| Surname | Arnold |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Burr Oak twp. |
| 1935 Residence (County) | Winneshiek |
| Highest Grade | 3 |
| 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 Robert Arnold across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Arnold
Son · 1940 · age 10 · b. ~1930 · Iowa
★ You are viewing this record
Sibling
Neal Arnold
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Arnold
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carmen Arnold
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arland Arnold
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dwayne Arnold
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janice Arnold
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Arnold
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Arnold
Sibling · 1940 · age 17
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 — Winneshiek-County, Iowa
Open full size
1940 US Federal Census — Winneshiek-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01213-00474)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lloyd M. Arnold | 39 | Head | Farmer | Iowa |
| 2 | Gladys E. Arnold | 42 | Wife | — | Iowa |
| 3 | Dale E. Arnold | 17 | Son | Farm Laborer | Iowa |
| 4 | Carmen E. Arnold | 18 | Daughter | Servant | Iowa |
| 5 | Arland F. Arnold | 16 | Son | Farm Laborer | Iowa |
| 6 | Dwayne F. E. Arnold | 12 | Son | — | Iowa |
| 7 | Robert L. Arnold THIS PERSON | 10 | Son | — | Iowa |
| 8 | Daniel A. Arnold | 8 | Son | — | Iowa |
| 9 | Neal D. R. Arnold | 6 | Son | — | Iowa |
| 10 | Norma J. Arnold | 4 | Daughter | — | Iowa |
| 11 | Janice A. Arnold | 2 | Daughter | — | Iowa |
| 12 | Raymond Armstrong | 33 | Head | Farmer | Iowa |
| 13 | Mae M. Armstrong | 26 | Wife | — | Iowa |
| 14 | Rowene M. Armstrong | 2 | Daughter | — | Iowa |
| 15 | Louise B. Armstrong | 12 | Daughter | — | Iowa |
| 16 | Dorothy G. Rolfe | 33 | Head | Farmer | Iowa |
| 17 | Evelyn J. Rolfe | 12 | Daughter | — | Iowa |
| 18 | Louise E. Rolfe | 9 | Daughter | — | Iowa |
| 19 | Margaret A. Rolfe | 5 | Daughter | — | Iowa |
| 20 | Leslie L. Laterman | 17 | Nephew | Farm Laborer | Iowa |
| 21 | Charles E. Pollitt | 65 | Head | Farmer | Iowa |
| 22 | Mabel Pollitt | 62 | Wife | — | Iowa |
| 23 | Jessie Emery | 30 | Hired hand | Farm Laborer | Minnesota |
| 24 | Giles K. Wilbur | 48 | Head | Farmer | Iowa |
| 25 | Valeda A. Wilbur | 43 | Wife | — | Iowa |
| 26 | Beverly D. Wilbur | 15 | Daughter | — | Iowa |
| 27 | Jeanette R. Wilbur | 13 | Daughter | — | Iowa |
| 28 | Ronald A. Wilbur | 9 | Son | — | Iowa |
| 29 | Earl M. Richard | 40 | Hired hand | Farm Laborer | Iowa |
| 30 | The Roland F. Stockman | 37 | Head | Farm Laborer | Iowa |
| 31 | George L. Wernett | 44 | Head | Farmer | Iowa |
| 32 | Lydia I. Wernett | 43 | Wife | — | Iowa |
| 33 | Lloyd L. Wernett | 17 | Son | — | Iowa |
| 34 | Earl R. Wernett | 13 | Son | — | Iowa |
| 35 | Doris M. Wernett | 12 | Daughter | — | Iowa |
| 36 | Florence E. Wernett | 6 | Daughter | — | California |
| 37 | Arthur E. Olson | 41 | Head | Quarry Worker | Iowa |
| 38 | Hazel I. Olson | 29 | Wife | — | Wisconsin |
| 39 | Vernon C. Olson | 8 | Son | — | Iowa |
| 40 | Donald A. Olson | 5 | 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)