MD
Mabel Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Miami-County, Ohio
Our Model Tree links this Mabel Davis across the 1920, 1930 and 1940 US Censuses in Miami-County, Ohio (XGBoost, ~Confirmed), with identified parents Abe & Bertha — first a daughter (b.~1914), then head of a 8-person household.
Age 26
b. ~1914
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Miami-County, Ohio |
| Surname | Davis |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lostcreek Twp |
| 1935 Residence (County) | Miami |
| Additional Details | |
| Occupation | Coil winder |
| Industry | Copper mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Coil Winder |
| Township / Ward | Lostcreek Twp |
| Est. Birth Year | ~1914 |
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 Mabel | Age | Birth yr |
|---|---|---|---|---|
| Margaret Davis | Daughter | — | 14 | ~1926 |
| Mabel Davis | Daughter | — | 26 | ~1914 |
| Martha Davis | Daughter | — | 23 | ~1917 |
| Mary Davis | Daughter | — | 20 | ~1920 |
| Zella Davis | Daughter | — | 28 | ~1912 |
| Calva Davis | Head | — | 54 | ~1886 |
| Charles Davis | Son | — | 18 | ~1922 |
| Bertha Davis | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Miami, Ohio
Daughter, age 5
Miami, Ohio · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mabel I. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Miami, Ohio
Daughter, age 15
Miami, Ohio · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Miami-County, Ohio
Daughter, age 26
Miami-County, Ohio · implied b. ~1914 — 8 household members
| Surname | Davis |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lostcreek Twp |
| 1935 Residence (County) | Miami |
| Occupation | Coil winder |
| Industry | Copper mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mabel Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Abe Davis (~0.92 confidence) and mother Bertha Davis (~0.92 confidence) and father Calva Davis (~0.92 confidence) and mother Eva Davis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Abe Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Bertha Davis
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Calva Davis
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Eva Davis
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mabel Davis
Daughter · 1940 · age 26 · b. ~1914 · Ohio
★ You are viewing this record
Sibling
Martha Davis
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zella Davis
Sibling · 1940 · age 28
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 — Miami-County, Ohio
Open full size
1940 US Federal Census — Miami-County, Ohio
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-03115-00473)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Saul | 17 | Brother | Farm Hand | Ohio |
| 2 | John William Troth | 44 | Head | Steam Fitter | Ohio |
| 3 | Marie Troth | 45 | Wife | — | Ohio |
| 4 | Calva Davis | 54 | Head | Operator | Indiana |
| 5 | Bertha Davis | 55 | Wife | — | Ohio |
| 6 | Zella Davis | 28 | Daughter | Coil Winder | Ohio |
| 7 | Mabel Davis THIS PERSON | 26 | Daughter | Coil Winder | Ohio |
| 8 | Martha Davis | 23 | Daughter | Armature Winder | Ohio |
| 9 | Mary Davis | 20 | Daughter | Armature Winder | Ohio |
| 10 | Charles Davis | 18 | Son | Farm Hand | Ohio |
| 11 | Margaret Davis | 14 | Daughter | — | Ohio |
| 12 | William Rayfield | 65 | Head | Farm Hand | Ohio |
| 13 | George Long | 50 | Head | Teamster | Ohio |
| 14 | Ethel Long | 42 | Wife | — | Ohio |
| 15 | Vernon Long | 18 | Son | Printer | Ohio |
| 16 | Morris Long | 16 | Son | School Pupil | Ohio |
| 17 | Elmer Ray | 45 | Head | Farm Operator | Ohio |
| 18 | Ida Ray | 43 | Wife | — | Ohio |
| 19 | Harry Ray | 13 | Son | — | Ohio |
| 20 | W. O. Colbert | None | Head | — | — |
| 24 | William Harvey | 36 | Head | Farm Operator | Ohio |
| 25 | Myrtle Harvey | 36 | Wife | — | Ohio |
| 26 | T. M. Hines | 43 | Head | — | Ohio |
| 27 | Mary Hines | 44 | Wife | — | Ohio |
| 28 | Dorothy Hines | 14 | Daughter | — | Ohio |
| 29 | William Riley | 40 | Head | Farm Hand | Ohio |
| 30 | Charles Rundrail | 40 | Head | Sheet Metal Worker | Ohio |
| 31 | Charles Jr. Rundrail | 15 | Son | Operator | Ohio |
| 32 | Irene Shaffer | 22 | Lodger | Winder | Ohio |
| 33 | Mary Ann Shaffer | 5 | Daughter | — | Ohio |
| 34 | Jimmy Lee Shaffer | 2 | Daughter | — | Ohio |
| 35 | William G. Borchers | 76 | Head | Operator | Ohio |
| 36 | Rosa Bee Borchers | 72 | Wife | — | Ohio |
| 37 | Otto Wolf | 53 | Head | Farm Operator | Ohio |
| 38 | Kathryn Wolf | 50 | Wife | — | Ohio |
| 39 | John Frisby | 43 | Head | Road Worker | Ohio |
| 40 | Margaret Frisby | 42 | Wife | — | Ohio |
Pedigree Summary
Mabel + 5 siblings
Gen 1 · 4 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)