MD
Mary Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sedgwick-County, Kansas
Our Model Tree links this Mary Davis across the 1920, 1930 and 1940 US Censuses in Sedgwick-County, Kansas (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a daughter (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Female
Daughter
Born: Kansas
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Sedgwick-County, Kansas |
| Surname | Davis |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Separated |
| Birthplace | Kansas |
| 1935 Residence (City) | Wichita City |
| 1935 Residence (County) | Sedgwick |
| Additional Details | |
| Occupation | Nurse |
| Industry | Private Patient |
| Class of Worker | OA |
| Hours Worked | 4 |
| Income (1939) | 1184 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Nurse |
| Township / Ward | Wichita City |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Davis | Daughter | — | 39 | ~1901 |
| Mary Davis | Head | — | 72 | ~1868 |
| Robert Davis | Son | — | 27 | ~1913 |
| Charles Davis | Son | — | 37 | ~1903 |
Census Appearances
1920
Sedgwick, Kansas
Daughter, age 21
Sedgwick, Kansas · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Illinois |
| Occupation | Nurse |
| Industry | Hospital |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Sedgwick, Kansas
Daughter, age 30
Sedgwick, Kansas · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Illinois |
| Occupation | Nurse |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Sedgwick-County, Kansas
Daughter, age 39
Sedgwick-County, Kansas · implied b. ~1901 — 4 household members
| Surname | Davis |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Separated |
| Birthplace | Kansas |
| 1935 Residence (City) | Wichita City |
| 1935 Residence (County) | Sedgwick |
| Occupation | Nurse |
| Industry | Private Patient |
| Class of Worker | OA |
| Hours Worked | 4 |
| Income (1939) | 1184 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Mary Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence) and mother Mary Davis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Davis
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mary Davis
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Davis
Daughter · 1940 · age 39 · b. ~1901 · Kansas
★ You are viewing this record
Sibling
Robert Davis
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Davis
Sibling · 1940 · age 37
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 — Sedgwick-County, Kansas
Open full size
1940 US Federal Census — Sedgwick-County, Kansas
Page Contents
18 people indexed on this census page (nara:1940:m-t0627-01275-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Olivia Morton | 31 | Head | Stenographer | Kansas |
| 2 | Paladin Morton | 8 | Son | — | Kansas |
| 3 | Thelma Merdie | 34 | Lodger | Saleslady | Kansas |
| 4 | Harold Clarke | 26 | Lodger | Truck Driver | Kansas |
| 5 | Sarah Mohr | 64 | Housekeeper | Housekeeper | Illinois |
| 6 | Bertha E Robison | 64 | Mother | — | Kansas |
| 7 | Robert J Pollock | 47 | Head | Cement Finisher | Kansas |
| 8 | Verna Pollock | 44 | Wife | Saleslady | Kansas |
| 9 | Kenneth Pollock | 14 | Son | — | Kansas |
| 10 | Mary E Davis | 72 | Head | — | Illinois |
| 11 | Mary E Davis THIS PERSON | 39 | Daughter | Nurse | Kansas |
| 12 | Charles H Davis | 37 | Son | Office Clerk | Kansas |
| 13 | Robert J Davis | 27 | Son | Mail Clerk | Kansas |
| 14 | G. Tom Long | 43 | Head | Heating Engineer | Kansas |
| 15 | Leona Long | 43 | Wife | — | Kansas |
| 16 | Ray Mcclintock | 27 | Head | Station Personnel | Texas |
| 17 | Ruby Mcclintock | 27 | Wife | — | Texas |
| 18 | Sarah Fortney | 25 | Maid | Maid | Kansas |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 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)