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Donald Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Donald Davis across the 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 10-person household.
Age 12
b. ~1928
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Davis |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Ottumwa City |
| Est. Birth Year | ~1928 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Darlene Davis | Daughter | — | 14 | ~1926 |
| Mary Davis | Daughter | — | 3 | ~1937 |
| Elizabeth Davis | Daughter | — | 9 | ~1931 |
| Lois Davis | Daughter | — | 5 | ~1935 |
| Albert Davis | Head | — | 41 | ~1899 |
| Gerald Davis | Son | — | 16 | ~1924 |
| Jerry Davis | Son | — | 6 | ~1934 |
| Robert Davis | Son | — | 4 | ~1936 |
| Donald Davis | Son | — | 12 | ~1928 |
| Ethel Davis | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Wapello, Iowa
Son, age 2
Wapello, Iowa · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Donald E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Son, age 12
Wapello-County, Iowa · implied b. ~1928 — 10 household members
| Surname | Davis |
| Given Name | Donald E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Highest Grade | No 5 |
| 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 Donald Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Davis
Son · 1940 · age 12 · b. ~1928 · Iowa
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Sibling
Elizabeth Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Davis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Davis
Sibling · 1940 · age 5
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 — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas E Wright | 76 | Head | Painter | Iowa |
| 2 | James N Wright | 67 | Brother | Painter | Iowa |
| 3 | Amanda C Vandegriff | 72 | Head | Housewife | Iowa |
| 4 | Harry E Ballinger | 69 | Head | Drayman | Iowa |
| 5 | Clara B Ballinger | 66 | Wife | Housewife | Illinois |
| 6 | Steven E Lowe | 21 | Head | Laborer | Iowa |
| 7 | Sylvia B Lowe | 22 | Wife | Housewife | Iowa |
| 8 | Helene C Lowe | 1 | Daughter | — | Iowa |
| 9 | Ellis H Barnhart | 45 | Head | Painter | Iowa |
| 10 | Lydia C Barnhart | 37 | Wife | Housewife | Iowa |
| 11 | George A Barnhart | 15 | Son | New Worker | Iowa |
| 12 | Noah M Hancock | 49 | Head | Housewife | Iowa |
| 13 | Oliver L Smith | 21 | Daughter | Housewife | Iowa |
| 14 | Chas. T Smith | 27 | Son-in-law | Trucker | Iowa |
| 15 | Elizabeth A Hancock | 25 | Daughter | Waitress | Iowa |
| 16 | Pauline E Lundeen | 31 | Head | Manager | Iowa |
| 17 | Hazel M Lundeen | 50 | Mother | Housewife | Iowa |
| 18 | John E Lundeen | 25 | Brother | Porter | Iowa |
| 19 | Opal Lundeen | 28 | Sister-in-law | — | Iowa |
| 20 | Jerry A Shelton | 28 | Head | Dairy | Iowa |
| 21 | Raymond J Shelton | 32 | Brother | Sausage Dept | Iowa |
| 22 | Stella C Shelton | 30 | Sister-in-law | Housewife | Iowa |
| 23 | Harry E Shreves | 66 | Head | Carpenter | Iowa |
| 24 | Harry E Shreves | 16 | Son | New Worker | Iowa |
| 25 | Chas Reed | 55 | Head | Machinist | Iowa |
| 26 | Maude E Reed | 50 | Wife | Housewife | Kansas |
| 27 | George W Dean | 70 | Head | Farmer | Illinois |
| 28 | Madge Dean | 68 | Wife | Housewife | Iowa |
| 29 | Albert G Davis | 41 | Head | Watchman | Iowa |
| 30 | Ethel M Davis | 37 | Wife | Housewife | Iowa |
| 31 | Gerald L Davis | 16 | Son | New Worker | Iowa |
| 32 | Darlene L Davis | 14 | Daughter | New Worker | Iowa |
| 33 | Donald E Davis THIS PERSON | 12 | Son | — | Iowa |
| 34 | Elizabeth R Davis | 9 | Daughter | — | Iowa |
| 35 | Jerry L Davis | 6 | Son | — | Iowa |
| 36 | Lois I Davis | 5 | Daughter | — | Iowa |
| 37 | Robert D Davis | 4 | Son | — | Iowa |
| 38 | Mary F Davis | 3 | Daughter | — | Iowa |
| 39 | Lewis T Gray | 57 | Head | Street Dept | Iowa |
| 40 | Mary M Gray | 52 | Wife | Housewife | Iowa |
Related Census Records
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)