MD
Mary Day — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Daviess-County, Kentucky
Our Model Tree links this Mary Day across the 1920, 1930 and 1940 US Censuses in Daviess-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Daviess-County, Kentucky |
| Surname | Day |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Daviss |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Owensboro |
| Est. Birth Year | ~1889 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Emma Day | Daughter | — | 21 | ~1919 |
| Nellie Day | Daughter | — | 16 | ~1924 |
| Isaac Day | Head | — | 58 | ~1882 |
| Richard Hayden | Other | — | 24 | ~1916 |
| Mary Day | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Daviess, Kentucky
Spouse, age 30
Daviess, Kentucky · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Daviess, Kentucky
Other, age 41
Daviess, Kentucky · implied b. ~1889 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Day |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Daviess-County, Kentucky
Spouse, age 51
Daviess-County, Kentucky · implied b. ~1889 — 5 household members
| Surname | Day |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Daviss |
| Class of Worker | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Day across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Day
Spouse · 1940 · age 51 · b. ~1889 · Kentucky
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Daviess-County, Kentucky
Open full size
1940 US Federal Census — Daviess-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01298-00594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James R. Thomas | 43 | Head | Carpenter | Kentucky |
| 42 | Elizabeth Thomas | 33 | Wife | Seamstress | Kentucky |
| 43 | Charles Thomas | 14 | Son | — | Kentucky |
| 44 | Dennis Thomas | 9 | Son | — | Kentucky |
| 45 | Nadia E. Thomas | 7 | Daughter | — | Kentucky |
| 46 | Clyde L. Thomas | 3 | Son | — | Kentucky |
| 47 | Bertie S. Abshire | 24 | Head | Mechanic | Indiana |
| 48 | Nancy Abshire | 25 | Wife | Secretary | Kentucky |
| 49 | Bertie Jr. Abshire | 4 | Son | — | Kentucky |
| 50 | Victor U. Abshire | 2 | Son | — | Kentucky |
| 51 | Genevieve Thompson | 22 | Lodger | House Keeper | Kentucky |
| 52 | Emmit Wallace | 49 | Head | Carpenter | Kentucky |
| 53 | Myrtle H. Wallace | 45 | Wife | — | Kentucky |
| 54 | Isabel Wallace | 25 | Daughter | Book Keeper | Kentucky |
| 55 | William S. Evans | 73 | Head | — | Kentucky |
| 56 | Sarah M. Evans | 66 | Wife | — | Kentucky |
| 57 | Earl R. Thurman | 21 | Head | Electrician | Kentucky |
| 58 | Elizabeth T. Thurman | 19 | Wife | Monitor | Kentucky |
| 59 | Isaac E. Day | 58 | Head | Carpenter | Kentucky |
| 60 | Mary E. Day THIS PERSON | 51 | Wife | — | Kentucky |
| 61 | Emma E. Day | 21 | Daughter | Sealer | Kentucky |
| 62 | Nellie J. Day | 16 | Daughter | — | Kentucky |
| 63 | Richard Hayden | 24 | Nephew | Cutter | Kentucky |
| 64 | Robert L. Day | 26 | Head | Welder | Kentucky |
| 65 | Ruby L. Day | 22 | Wife | — | Kentucky |
| 66 | Darrell L. Day | 2 | Son | — | Kentucky |
| 67 | Ernest J. Hoagland | 55 | Head | Painter | Kentucky |
| 68 | Bertha Hoagland | 56 | Wife | — | Kentucky |
| 69 | Elizabeth Hoagland | 16 | Daughter | — | Kentucky |
| 70 | Ernest Jr. Hoagland | 13 | Son | — | Kentucky |
| 71 | Dorothy Hoagland | 24 | Daughter | Inspector | Kentucky |
| 72 | Jasper Hoagland | 2 | Son | — | Kentucky |
| 73 | Leander Clark | 58 | Head | Carpenter | Kentucky |
| 74 | Clara E. Clark | 48 | Wife | — | Kentucky |
| 75 | Lena Clark | 30 | Daughter | Stem Maker | Kentucky |
| 76 | Sam Lawrence | 23 | Head | Sander | Kentucky |
| 77 | Mary E. Lawrence | 19 | Wife | — | Kentucky |
| 78 | Rommie A. Erb | 36 | Head | Contractor | Kentucky |
| 79 | Jessie Erb | 29 | Wife | Nurse | Indiana |
| 80 | Rommie Jr. Erb | 1 | Son | — | Kentucky |
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)