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Bernice Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Iowa
Our Model Tree links this Bernice Davis across the 1930 and 1940 US Censuses in Jefferson-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Iowa |
| Surname | Davis |
| Given Name | Bernice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Polk twp |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Polk Twp |
| Est. Birth Year | ~1923 |
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 Bernice | Age | Birth yr |
|---|---|---|---|---|
| Geneva Davis | Daughter | — | 9 | ~1931 |
| Bernice Davis | Daughter | — | 17 | ~1923 |
| Bernice Davis | Spouse | — | 30 | ~1910 |
| Mary Davis | Daughter | — | 5 | ~1935 |
| Lewis Davis | Head | — | 40 | ~1900 |
| Barbara Davis | Daughter | — | 3 | ~1937 |
| Wayne Davis | Son | — | 8 | ~1932 |
| Dale Davis | Son | — | 12 | ~1928 |
| Doris Davis | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Jefferson, Iowa
Daughter, age 7
Jefferson, Iowa · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Bernice A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Jefferson-County, Iowa
Daughter, age 17
Jefferson-County, Iowa · implied b. ~1923 — 9 household members
| Surname | Davis |
| Given Name | Bernice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Polk twp |
| 1935 Residence (County) | Jefferson |
| Highest Grade | H-4 |
| 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 Bernice Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bernice Davis
Daughter · 1940 · age 17 · b. ~1923 · Iowa
★ You are viewing this record
Sibling
Doris Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Davis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Davis
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geneva Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Davis
Sibling · 1940 · age 12
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 — Jefferson-County, Iowa
Open full size
1940 US Federal Census — Jefferson-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01170-00444)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lewis Davis | 40 | Head | Farming | Missouri |
| 42 | Bernice Davis | 30 | Wife | Housekeeper | Missouri |
| 43 | Bernice Davis THIS PERSON | 17 | Daughter | — | Iowa |
| 44 | Dale Davis | 12 | Son | — | Iowa |
| 45 | Doris Davis | 11 | Daughter | — | Iowa |
| 46 | Geneva Davis | 9 | Daughter | — | Iowa |
| 47 | Wayne Davis | 8 | Son | — | Iowa |
| 48 | Mary Davis | 5 | Daughter | — | Iowa |
| 49 | Barbara Davis | 3 | Daughter | — | Iowa |
| 50 | Dayton Small | 47 | Head | Farming | Ill. |
| 51 | Alice Small | 47 | Wife | Housekeeper | Ill. |
| 52 | Earley Small | 21 | Son | — | Ill. |
| 53 | Radford Small | 17 | Son | — | Iowa |
| 54 | Hugh Jones | 53 | Head | Farming | Iowa |
| 55 | Hattie Jones | 50 | Wife | Housekeeper | Iowa |
| 56 | Marian Jones | 19 | Daughter | Housekeeper | Iowa |
| 57 | Donald Jones | 16 | Son | — | Iowa |
| 58 | Ruth Jones | 13 | Daughter | — | Iowa |
| 59 | Earl Salterbery | 34 | Head | Farming | Iowa |
| 60 | Mary Salterbery | 29 | Wife | Housekeeper | Iowa |
| 61 | Yvonne Salterbery | 7 | Daughter | — | Iowa |
| 62 | Mildred Salterbery | 4 | Daughter | — | Iowa |
| 63 | Rodger Salterbery | 2 | Son | — | Iowa |
| 64 | Clarence Mitchell | 46 | Head | Farming | Iowa |
| 65 | Josephine Mitchell | 28 | Wife | Housekeeper | Iowa |
| 66 | Beatrice Mitchell | 6 | Daughter | — | Iowa |
| 67 | Danny Mitchell | 5 | Son | — | Iowa |
| 68 | John Huffman | 34 | Head | Farming | Iowa |
| 69 | Mable Huffman | 52 | Wife | Housekeeper | Iowa |
| 70 | Hollis Huffman | 28 | Son | Farming | Iowa |
| 71 | Jessie Huffman | 28 | Daughter-in-law | Housekeeper | Iowa |
| 72 | Keith Huffman | 9 | Son | — | Iowa |
| 73 | Bertha Huffman | 8 | Grandson | — | Iowa |
| 74 | Glen Huffman | 4 | Grandson | — | Iowa |
| 75 | Clarence Hague | 66 | Head | Farming | Iowa |
| 76 | Elger Winslow | 60 | Lodger | Carpenter | Iowa |
| 77 | Sadie Winslow | 60 | Lodger | Housekeeper | Iowa |
| 78 | Arthur Winslow | 34 | Lodger | Farming | Iowa |
| 79 | Eugene Winslow | 28 | Lodger | Carpenter | Iowa |
| 80 | Louise Winslow | 23 | Lodger | Housekeeper | 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)