DD
Dorothy Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this Dorothy Davis across the 1920, 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed), with identified parents Chris & Ellis — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Davis |
| Given Name | Dorothy Pearl |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dallas Twp |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dallas Twp |
| Est. Birth Year | ~1916 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Davis | Daughter | — | 24 | ~1916 |
| Edna Davis | Daughter | — | 16 | ~1924 |
| Mary Davis | Daughter | — | 7 | ~1933 |
| Wilma Davis | Daughter | — | 11 | ~1929 |
| Alberta Davis | Daughter | — | 12 | ~1928 |
| Chris Davis | Head | — | 56 | ~1884 |
| Ray Davis | Son | — | 18 | ~1922 |
| Mae Davis | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Marion, Iowa
Daughter, age 4
Marion, Iowa · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Marion, Iowa
Daughter, age 14
Marion, Iowa · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Daughter, age 24
Marion-County, Iowa · implied b. ~1916 — 8 household members
| Surname | Davis |
| Given Name | Dorothy Pearl |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dallas Twp |
| 1935 Residence (County) | Marion |
| Highest Grade | H-4 |
| 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 Dorothy Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Chris Davis (~0.92 confidence) and father Ellis Davis (~0.92 confidence) and father C Davis (~0.92 confidence) and mother Mae Davis (~0.92 confidence) and mother Lulu Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Chris Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Ellis Davis
b. ~1885
Source father
● Household
· direct · ~0.92
Father
C Davis
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mae Davis
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Lulu Davis
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Davis
Daughter · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Wilma Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alberta 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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00118)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Janice Roberta Waught | 3 | Daughter | Same Place | — |
| 42 | Eugene Roland Waught | 1 | Son | Same Place | — |
| 43 | M. R. Frye | 63 | Head | Farmer | Iowa |
| 44 | Lucy Frye | 62 | Wife | Housewife | Iowa |
| 45 | Corlis Frye | 22 | Son | Clerk | Iowa |
| 46 | Albert S. Muir | 34 | Head | Laborer | Illinois |
| 47 | Nella Muir | 32 | Wife | Housewife | Iowa |
| 48 | Kenneth Muir | 11 | Son | — | Iowa |
| 49 | Madonna Muir | 7 | Daughter | — | Iowa |
| 50 | Sam Monaco | 53 | Head | Laborer | Italy |
| 51 | Margaret Monaco | 48 | Wife | Housewife | Italy |
| 52 | Rosalie Monaco | 22 | Daughter | — | Iowa |
| 53 | Rocco Monaco | 20 | Son | Laborer | Iowa |
| 54 | Theresa Monaco | 14 | Daughter | — | Iowa |
| 55 | Norine Monaco | 3 | Daughter | — | Iowa |
| 56 | Dan Paul Antomoni | 34 | Head | Farmer | France |
| 57 | Glenn Offenburger | 42 | Head | Farmer | Iowa |
| 58 | Myrtle Offenburger | 37 | Wife | — | Iowa |
| 59 | Steven F. Miley | 63 | Head | Farmer | Indiana |
| 60 | Barbara A. Miley | 62 | Wife | Housewife | Iowa |
| 61 | Victor Miley | 24 | Son | Farmer | Iowa |
| 62 | Leo Miley | 22 | Son | Laborer | Iowa |
| 63 | Alban Miley | 20 | Son | Laborer | Iowa |
| 64 | Theresa Frueh | 76 | Head | Housewife | Iowa |
| 65 | Irvin Rigel | 43 | Head | Farmer | Iowa |
| 66 | Eva Rigel | 39 | Wife | Housewife | Iowa |
| 67 | Charles Glenn Rigel | 15 | Son | — | Iowa |
| 68 | Robert Rigel | 11 | Son | — | Iowa |
| 69 | Harold Rigel | 7 | Son | — | Iowa |
| 70 | Albert Rigel | 5 | Son | — | Iowa |
| 71 | John Aronberg | 74 | Step-father | — | Sweden |
| 72 | Chris Davis | 56 | Head | Farmer | Iowa |
| 73 | Mae Davis | 49 | Wife | Housewife | Iowa |
| 74 | Dorothy Pearl Davis THIS PERSON | 24 | Daughter | — | Iowa |
| 75 | Ray Edward Davis | 18 | Son | Laborer | Iowa |
| 76 | Edna Fay Davis | 16 | Daughter | — | Iowa |
| 77 | Alberta Mae Davis | 12 | Daughter | — | Iowa |
| 78 | Wilma Fern Davis | 11 | Daughter | — | Iowa |
| 79 | Mary Louise Davis | 7 | Daughter | — | Iowa |
| 80 | Edd Garr | 60 | Head | Farmer | Iowa |
Pedigree Summary
Dorothy + 5 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)