MK
Mary Keller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kenton-County, Kentucky
Our Model Tree links this Mary Keller across the 1920, 1930 and 1940 US Censuses in Kenton-County, Kentucky (XGBoost, ~Confirmed), with identified parents Peter & Mary — first a daughter (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kenton-County, Kentucky |
| Surname | Keller |
| Given Name | Mary Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 5 |
| 1935 Residence (County) | Kenton |
| Additional Details | |
| Occupation | Domestic |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 28 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Domestic |
| Township / Ward | Mag Dist 5 |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Keller | Daughter | — | 25 | ~1915 |
| John Keller | Head | — | 57 | ~1883 |
| Mary Keller | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Kenton, Kentucky
Daughter, age 4
Kenton, Kentucky · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keller |
| Given Name | Mary B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Kenton, Kentucky
Daughter, age 15
Kenton, Kentucky · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keller |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Kenton-County, Kentucky
Daughter, age 25
Kenton-County, Kentucky · implied b. ~1915 — 3 household members
| Surname | Keller |
| Given Name | Mary Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Mag. Dist. 5 |
| 1935 Residence (County) | Kenton |
| Occupation | Domestic |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 66 |
| Income (1939) | 28 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Keller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Keller (~0.92 confidence) and mother Mary Keller (~0.92 confidence) and father Pete Keller (~0.92 confidence) and father John Keller (~0.92 confidence) and mother Mary Keller (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Keller
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Keller
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Pete Keller
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Keller
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Keller
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Keller
Daughter · 1940 · age 25 · b. ~1915 · Kentucky
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kenton-County, Kentucky
Open full size
1940 US Federal Census — Kenton-County, Kentucky
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01325-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ollie Baumer | 43 | Head | Laborer | Kentucky |
| 42 | Sadie Baumer | 41 | Wife | — | Kentucky |
| 43 | Elderd Baumer | 10 | Son | — | Kentucky |
| 44 | Avery Pruitt | 49 | Head | Farming | Kentucky |
| 45 | Jennie Pruitt | 45 | Wife | — | Kentucky |
| 46 | George Pruitt | 20 | Son | Farming | Kentucky |
| 47 | Verdie Pruitt | 15 | Daughter | — | Kentucky |
| 48 | Alfred Pruitt | 15 | Son | — | Kentucky |
| 49 | Charles Pruitt | 11 | Son | — | Kentucky |
| 50 | Merrill Pruitt | 8 | Daughter | — | Kentucky |
| 51 | Frank Pruitt | 5 | Son | — | Kentucky |
| 52 | Onieda Ware | 57 | Head | Lawyer | Kentucky |
| 53 | Louise C. Ware | 58 | Wife | — | Kentucky |
| 54 | Richard Robinson | 29 | Head | General Work | Kentucky |
| 55 | Mary Virginia Robinson | 27 | Wife | Cook | Kentucky |
| 56 | William J. Haney | 51 | Head | Farming | Kentucky |
| 57 | Ollie Haney | 51 | Wife | — | Kentucky |
| 58 | William L. Haney | 21 | Son | General | Kentucky |
| 59 | Jessie Haney | 18 | Son | Farming | Kentucky |
| 60 | Georgia M. Haney | 14 | Daughter | — | Kentucky |
| 61 | Mildred L. Haney | 10 | Daughter | — | Kentucky |
| 62 | Louis Mankotti | 34 | Son-in-law | Sergeant | Minnesota |
| 63 | Catherine Mankotti | 27 | Daughter | — | Kentucky |
| 64 | Frank L. Stagman | 49 | Head | Farming | Kentucky |
| 65 | Isabel Stagman | 43 | Wife | — | Ohio |
| 66 | William Plunkett | 58 | Head | Switchman | Kentucky |
| 67 | Alice Plunkett | 53 | Wife | — | Kentucky |
| 68 | John Keller | 57 | Head | Machinist | Kentucky |
| 69 | Mary Elizabeth Keller | 43 | Wife | — | Kentucky |
| 70 | Mary Elizabeth Keller THIS PERSON | 25 | Daughter | Domestic | Kentucky |
| 71 | John P. Bickers | 61 | Head | Farming | Kentucky |
| 72 | Ora J. Bickers | 45 | Wife | — | Kentucky |
| 73 | Klein Bickers | 26 | Son | Farming | Kentucky |
| 74 | Milton Hall | 42 | Lodger | Electrician | Kentucky |
| 75 | Arthur W. Boggs | 34 | Head | Steam Engineer | Kentucky |
| 76 | Amy Boggs | 36 | Wife | — | Tennessee |
| 77 | Ernest Mardis | 64 | Head | Line Insp | Kentucky |
| 78 | Marie C. Mardis | 63 | Wife | — | Kentucky |
| 79 | Elizabeth A. Mardis | 33 | Daughter | — | Kentucky |
Related Census Records
Pedigree Summary
Mary
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)