MH
Mary Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Harris across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Geo & Lena — first a daughter (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Harris |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville city |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Bldg & Loan Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1196 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Clerk |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1898 |
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 |
|---|---|---|---|---|
| Mary Harris | Daughter | — | 42 | ~1898 |
| Geo Harris | Head | — | 62 | ~1878 |
| Ralph Harris | Son | — | 25 | ~1915 |
| Alvin Harris | Son | — | 28 | ~1912 |
| Lena Harris | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Jefferson, Kentucky
Other, age 23
Jefferson, Kentucky · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Saleslady |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Other, age 32
Jefferson, Kentucky · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Daughter-H |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Clerk |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 42
Jefferson-County, Kentucky · implied b. ~1898 — 5 household members
| Surname | Harris |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville city |
| 1935 Residence (County) | Jefferson |
| Occupation | Clerk |
| Industry | Bldg & Loan Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1196 |
| Highest Grade | Hs 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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Geo Harris (~0.92 confidence) and mother Lena Harris (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Geo Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Lena Harris
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Harris
Daughter · 1940 · age 42 · b. ~1898 · Kentucky
★ You are viewing this record
Sibling
Alvin Harris
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Harris
Sibling · 1940 · age 25
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-t0627-01365-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank Sarah Frances Bean | 2 | Daughter | — | Kentucky |
| 42 | Charles E Dugan | 70 | Lodger | — | Kentucky |
| 43 | Margaret E Manny | 18 | Daughter | — | Kentucky |
| 44 | Theo Englehart | 65 | Head | Compositor | Kentucky |
| 45 | Hannah Englehart | 64 | Wife | — | Kentucky |
| 46 | Adeline Hibbitt | 39 | Daughter | — | Kentucky |
| 47 | H. R. Hibbitt | 39 | Son in law | Salesman | Kentucky |
| 48 | Barbara Hibbitt | 5 | Granddaughter | — | Kentucky |
| 49 | Samuel Blair | 38 | Head | Meat Insp. | Missouri |
| 50 | Montie Blair | 35 | Wife | — | Missouri |
| 51 | John L. Blair | 12 | Son | — | Illinois |
| 52 | Elizabeth A. Blair | 9 | Daughter | — | Illinois |
| 53 | Lena B. Jones | 63 | Head | — | Kentucky |
| 54 | Ada Q. Dearing | 54 | Lodger | Salesman | Kentucky |
| 55 | Geo M. Harris | 62 | Head | Parking Lot | Kentucky |
| 56 | Lena Harris | 56 | Wife | — | Kentucky |
| 57 | Mary E. Harris THIS PERSON | 42 | Daughter | Clerk | Kentucky |
| 58 | Alvin Harris | 28 | Son | Attendant | Kentucky |
| 59 | Ralph Harris | 25 | Son | Laborer | Kentucky |
| 60 | Corine Jennings | 56 | Head | — | Tennessee |
| 61 | Mable Steier | 30 | Daughter | — | Kentucky |
| 62 | Nellie F. Price | 38 | Housekeeper | Housekeeper | Mississippi |
| 63 | C. D. Lohrman | 34 | Head | Salesman | Kentucky |
| 64 | H. L. Lohrman | 38 | Brother | Laborer | Kentucky |
| 65 | Catherine Lohrman | 68 | Mother | — | Kentucky |
| 66 | Michael Checkler | 55 | Head | Laborer | Kentucky |
| 67 | Lottie Checkler | 53 | Wife | — | Kentucky |
| 68 | Willette Checkler | 20 | Daughter | — | Kentucky |
| 69 | Ivan Checkler | 31 | Son | — | Kentucky |
| 70 | Ethel Checkler | 17 | Daughter | — | Kentucky |
| 71 | Betty C. Checkler | 1 | Granddaughter | — | Kentucky |
| 72 | Here Ends Enumeration Of Raymond Ave. | None | — | — | — |
| 73 | August B. Denzinger | 65 | Head | — | Kentucky |
| 74 | Ruth Denzinger | 43 | Daughter | Salesman | Kentucky |
| 75 | Charles Denzinger | 35 | Son | Salesman | Kentucky |
| 76 | Katherine Denzinger | 30 | Daughter in law | Clerk | Kentucky |
| 77 | Dorothy Pike | 30 | Daughter | Bookkeeper | Kentucky |
| 78 | J. C. Pike | 28 | Son in law | Clerk | Kentucky |
| 79 | Evelyn Honzaker | 28 | Daughter | Secretary | Kentucky |
| 80 | Alvin Honzaker | 29 | Son in law | Salesman | Kentucky |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 2 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)