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Mary Best — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Best across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Martin & Mudin — first a daughter (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Best |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Second Magisterial Dist. |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Second Magisterial Dist |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Best | Daughter | — | 20 | ~1920 |
| Martin Best | Head | — | 45 | ~1895 |
| Paul Best | Son | — | 9 | ~1931 |
| Kenneth Best | Son | — | 15 | ~1925 |
| Hallie Best | Spouse | — | 43 | ~1897 |
| Keith Best | Son | — | 18 | ~1922 |
| Helen Best | Daughter | — | 2 | ~1938 |
| Catherine Best | Daughter | — | 14 | ~1926 |
| Louis Best | Son | — | 23 | ~1917 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age
Jefferson, Kentucky · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Best |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Daughter, age 10
Jefferson, Kentucky · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Best |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 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
Jefferson-County, Kentucky
Daughter, age 20
Jefferson-County, Kentucky · implied b. ~1920 — 9 household members
| Surname | Best |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Second Magisterial Dist. |
| 1935 Residence (County) | Jefferson |
| Highest Grade | Hs 2 |
| 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 Best across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Best (~0.92 confidence) and father Mudin Best (~0.92 confidence) and mother Hallie Best (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Best
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Mudin Best
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Hallie Best
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Best
Daughter · 1940 · age 20 · b. ~1920 · Kentucky
★ You are viewing this record
Sibling
Catherine Best
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Keith Best
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Best
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Best
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Best
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Best
Sibling · 1940 · age 23
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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01320-00956)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert K. Morris | 4 | Grandson | — | Kentucky |
| 42 | Harry H. Bridges | 45 | Head | Meter Man | Kentucky |
| 43 | Louise F. Bridges | 30 | Wife | — | Kentucky |
| 44 | Viola B. Bridges | 16 | Daughter | — | Kentucky |
| 45 | William Grimm | 61 | Head | Foreman | Kentucky |
| 46 | Eva A. Grimm | 58 | Wife | — | Kentucky |
| 47 | Herman F. Meier | 77 | Head | — | Kentucky |
| 48 | Emma B. Meier | 72 | Wife | — | Kentucky |
| 49 | Charlotte M. Meier | 45 | Daughter | — | Kentucky |
| 50 | Caroline E. Meier | 44 | Daughter | Teacher | Kentucky |
| 51 | Anita A. Meier | 41 | Daughter | Bookkeeper | Kentucky |
| 52 | Margaret E. Meier | 39 | Daughter | Teacher | Kentucky |
| 53 | Julia A. Meier | 38 | Daughter | — | Kentucky |
| 54 | William Eimermenger | 72 | Head | Metal Worker | Kentucky |
| 55 | Emma C. Eimermenger | 77 | Wife | — | Kentucky |
| 56 | Martin L. Best | 45 | Head | Proprietor Peddler | Kentucky |
| 57 | Hallie F. Best | 43 | Wife | — | Kentucky |
| 58 | Louis M. Best | 23 | Son | Apprentice Machinist | Kentucky |
| 59 | Mary E. Best THIS PERSON | 20 | Daughter | — | Kentucky |
| 60 | Keith W. Best | 18 | Son | Helper | Kentucky |
| 61 | Catherine E. Best | 14 | Daughter | Saleslady | Kentucky |
| 62 | Kenneth F. Best | 15 | Son | — | Kentucky |
| 63 | Paul E. Best | 9 | Son | — | Kentucky |
| 64 | Helen L. Best | 2 | Daughter | — | Kentucky |
| 65 | Philip L. Miller | 27 | Head | Grinder | Kentucky |
| 66 | Anna M. Miller | 23 | Wife | — | Kentucky |
| 67 | Walter C. Cook | 44 | Head | Car Man | Kentucky |
| 68 | Dorothy C. Cook | 36 | Wife | — | Kentucky |
| 69 | Amanda C. Cook | 11 | Daughter | — | Kentucky |
| 70 | Lynn C. Cook | 5 | Son | — | Kentucky |
| 71 | Mich. H. Dristenstein | 50 | Head | Farmer | Kentucky |
| 72 | Minnie C. Dristenstein | 46 | Wife | — | Kentucky |
| 73 | Thelma M. Dristenstein | 21 | Daughter | Teacher | Kentucky |
| 74 | James M. Lovorn | 77 | Head | — | Kentucky |
| 75 | Sallie G. Lovorn | 53 | Wife | Seamstress | Kentucky |
| 76 | Will Bates | 68 | Boarder | — | Kentucky |
| 77 | Henry J. Hopke | 71 | Head | Farmer | Germany |
| 78 | Mary M. Hopke | 58 | Wife | — | Indiana |
| 79 | Fred Mussman | 59 | Brother in law | — | Indiana |
| 80 | August A. Blum | 62 | Head | Bartender | Kentucky |
Pedigree Summary
Mary + 6 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)