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Mary Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Lewis across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Lucinda — first a head (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Female
Head
Born: Kentucky
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Separated |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 300 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Housekeeper |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jennie Lewis | Daughter | — | 15 | ~1925 |
| Mary Lewis | Head | — | 30 | ~1910 |
| Mollie Mcdaniel | Other | — | 63 | ~1877 |
| Lucinda Lewis | Other | — | 63 | ~1877 |
| Lotha Crawford | Other | — | 25 | ~1915 |
| Elinor Reynolds | Other | — | 26 | ~1914 |
| Carl Lewis | Son | — | 12 | ~1928 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age 10
Jefferson, Kentucky · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Daughter, age 20
Jefferson, Kentucky · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Cook |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 30
Jefferson-County, Kentucky · implied b. ~1910 — 7 household members
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Separated |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Housekeeper |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 70 |
| Income (1939) | 300 |
| Highest Grade | No 8 |
| 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 Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lucinda Lewis (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lucinda Lewis
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Lewis
Head · 1940 · age 30 · b. ~1910 · 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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01367-00564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roscoe Clay | 28 | Nephew | Bell Boy | Missouri |
| 2 | Mary Lewis THIS PERSON | 30 | Head | Housekeeper | Kentucky |
| 3 | Jennie S. Lewis | 15 | Daughter | 0 | Kentucky |
| 4 | Carl Lewis | 12 | Son | — | Kentucky |
| 5 | Elinor Reynolds | 26 | Sister | Cook | Kentucky |
| 6 | Lotha Crawford | 25 | Sister | Housekeeper | Kentucky |
| 7 | Lucinda Lewis | 63 | Mother | — | Kentucky |
| 8 | Mollie Mcdaniel | 63 | Aunt | — | Kentucky |
| 9 | Henry Neighbors | 48 | Head | Chauffeur | Kentucky |
| 10 | Allie Neighbors | 42 | Wife | — | Florida |
| 11 | Ruth Wesley | 24 | Daughter | — | Florida |
| 12 | R. D. Christmas | 36 | Head | District Manager | Pennsylvania |
| 13 | Flossie Christmas | 33 | Wife | — | Georgia |
| 14 | Bruce Weaver | 23 | Son | Librarian Assistant | Indiana |
| 15 | Reuben Lee | 40 | Head | Porter | Kentucky |
| 16 | Rituea Lee | 38 | Wife | — | Kentucky |
| 17 | Nellie Lee | 73 | Mother | — | Kentucky |
| 18 | Cottrel Adkins | 45 | Lodger | Porter | Kentucky |
| 19 | Christopher Perkins | 57 | Head | Engine Wiper | Alabama |
| 20 | Dashia Perkins | 48 | Wife | Laundress | Alabama |
| 21 | Roy Rogers | 48 | Head | Janitor | Kentucky |
| 22 | Georgia Rogers | 45 | Wife | — | Tennessee |
| 23 | John Paves | 42 | Head | Janitor | Alabama |
| 24 | Cora L. Paves | 38 | Wife | Caterer | Alabama |
| 25 | Mary Lou Paves | 18 | Daughter | — | Kentucky |
| 26 | Gladys Marie Paves | 16 | Daughter | — | Kentucky |
| 27 | Carrie Mae Paves | 11 | Daughter | — | Kentucky |
| 28 | Frank Lee Paves | 9 | Son | — | Kentucky |
| 29 | Cora Lee Paves | 6 | Daughter | — | Kentucky |
| 30 | James Kennedy Paves | 4 | Son | — | Kentucky |
| 31 | Oscar Henry Paves | 2 | Son | — | Kentucky |
| 32 | Robert Bell | 31 | Head | Laborer | Tennessee |
| 33 | Hattie Mae Bell | 29 | Wife | — | Tennessee |
| 34 | Arcada Mae Collins | 6 | Daughter | — | Kentucky |
| 35 | George L. Johnson | 39 | Head | Truck Driver | Kentucky |
| 36 | Gertrude Johnson | 39 | Wife | Saleswoman | Kentucky |
| 37 | Wesley Davis | 52 | Brother in law | — | Kentucky |
| 38 | Mattie Scott | 49 | Head | Maid | Same House |
| 39 | Edward Wilson | 30 | Son | Chauffeur | Same House |
Pedigree Summary
Mary
Gen 1 · 1 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)