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Richard Hall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · O'Brien-County, Iowa
Our Model Tree links this Richard Hall across the 1930 and 1940 US Censuses in O'Brien-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 9-person household.
Age 11
b. ~1929
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | O'Brien-County, Iowa |
| Surname | Hall |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Primghar |
| 1935 Residence (County) | O'Brien |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Sheldon |
| Est. Birth Year | ~1929 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Maybelle Hall | Daughter | — | 15 | ~1925 |
| Delores Hall | Daughter | — | 5 | ~1935 |
| Alice Hall | Daughter | — | 4 | ~1936 |
| Henry Hall | Head | — | 38 | ~1902 |
| Robert Hall | Son | — | 17 | ~1923 |
| Richard Hall | Son | — | 11 | ~1929 |
| Leonard Hall | Son | — | 9 | ~1931 |
| Keith Hall | Son | — | 12 | ~1928 |
| Essie Hall | Spouse | — | 39 | ~1901 |
Census Appearances
1930
O Brien, …
Son, age 1
O Brien, Iowa · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hall |
| Given Name | Richard |
| 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
O'Brien-County, Iowa
Son, age 11
O'Brien-County, Iowa · implied b. ~1929 — 9 household members
| Surname | Hall |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Primghar |
| 1935 Residence (County) | O'Brien |
| Highest Grade | No 6 |
| 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 Richard Hall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Hall
Son · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Alice Hall
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Keith Hall
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Hall
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maybelle Hall
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Hall
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Hall
Sibling · 1940 · age 9
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 — O'Brien-County, Iowa
Open full size
1940 US Federal Census — O'Brien-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01187-00148)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa Pappe | 7 | Daughter | — | S. Dakota |
| 42 | Rudolph Pappe | 4 | Son | — | Iowa |
| 43 | Anthony Pappe | 2 | Son | — | Iowa |
| 44 | Helena Broekman | 56 | Head | — | Holland |
| 45 | William Broekman | 26 | Son | Egg Candler | Iowa |
| 46 | Peter Broekman | 25 | Son | Chicken Picker | S. Dakota |
| 47 | Henry Broekman | 23 | Son | Clerk | S. Dakota |
| 48 | Martin Broekman | 20 | Son | Oils Eggs Etc. | Iowa |
| 49 | Ralph Warner | 36 | Head | Delivery | Iowa |
| 50 | Evelyn Warner | 26 | Wife | — | Iowa |
| 51 | Ardis Warner | 5 | Daughter | — | Iowa |
| 52 | Carol Warner | 3 | Daughter | — | Iowa |
| 53 | Gloria Warner | 2 | Daughter | — | Iowa |
| 54 | Darrell Warner | 0 | Son | — | Iowa |
| 55 | Adam Eich | 18 | Brother in-law | — | Iowa |
| 56 | Herman N. Brunk | 50 | Head | Manager | Iowa |
| 57 | Bertha Brunk | 44 | Wife | — | Illinois |
| 58 | Clarence Brunk | 17 | Son | Candles Eggs | Iowa |
| 59 | Julius Gebauer | 20 | Head | Filling Station | Iowa |
| 60 | Darlene Gebauer | 17 | Wife | — | Iowa |
| 61 | Davey Gebauer | 0 | Son | — | Iowa |
| 62 | Edwin Wahl | 39 | Head | Clerk | S. Dakota |
| 63 | Dorothy Wahl | 30 | Wife | Dishwasher | S. Dakota |
| 64 | Robert Wahl | 8 | Son | — | S. Dakota |
| 65 | Bonny Wahl | 7 | Daughter | — | S. Dakota |
| 66 | Jacqueline Wahl | 3 | Daughter | — | Iowa |
| 67 | Snoze Baker | 19 | Maid | Maid | Iowa |
| 68 | Henry Hall | 38 | Head | Day Laborer | Iowa |
| 69 | Essie Hall | 39 | Wife | — | Iowa |
| 70 | Robert Hall | 17 | Son | Library Work Janitor At School | Iowa |
| 71 | Maybelle Hall | 15 | Daughter | — | Iowa |
| 72 | Keith Hall | 12 | Son | — | Iowa |
| 73 | Richard Hall THIS PERSON | 11 | Son | — | Iowa |
| 74 | Leonard Hall | 9 | Son | — | Iowa |
| 75 | Delores Hall | 5 | Daughter | — | Iowa |
| 76 | Alice Hall | 4 | Daughter | — | Iowa |
| 77 | Marshall Wynn | 24 | Head | Clerk | Iowa |
| 78 | Maureen Wynn | 25 | Wife | — | Iowa |
| 79 | Colleen Wynn | 2 | Daughter | 0 | Iowa |
| 80 | Carl Koepnick | 74 | Head | — | Germany |
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)