MB
Mary Bradford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Bradford across the 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Bradford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Clerk |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1921 |
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 |
|---|---|---|---|---|
| James Bradford | Son | — | 18 | ~1922 |
| John Bradford | Son | — | 17 | ~1923 |
| Barthenew Bradford | Head | — | 48 | ~1892 |
| Mary Bradford | Daughter | — | 19 | ~1921 |
| Marie Bradford | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Jefferson, Kentucky
Daughter, age 9
Jefferson, Kentucky · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradford |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| 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
Jefferson-County, Kentucky
Daughter, age 19
Jefferson-County, Kentucky · implied b. ~1921 — 5 household members
| Surname | Bradford |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Clerk |
| Industry | Drug Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Bradford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bradford
Daughter · 1940 · age 19 · b. ~1921 · Kentucky
★ You are viewing this record
Sibling
John Bradford
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Bradford
Sibling · 1940 · age 18
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-t0627-01376-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bett Jean Lockett | 13 | Grand Daughter | — | Kentucky |
| 2 | Peter Paul Schlang | 51 | Head | Laborer | Kentucky |
| 3 | Louise Schlang | 49 | Wife | — | Kentucky |
| 4 | Marion Schlang | 13 | Daughter | — | Kentucky |
| 5 | Ruth Schlang | 11 | Daughter | — | Kentucky |
| 6 | Robert Warner | 31 | Head | Truck Driver | Indiana |
| 7 | Alpha Warner | 30 | Wife | — | Indiana |
| 8 | Patricia Meyers | 10 | Sister In Law | — | Indiana |
| 9 | Joseph P. Budd | 23 | Head | Candy Salesman | Kentucky |
| 10 | Ethel Mudd | 21 | Wife | — | Kentucky |
| 11 | James Faitch | 6 | Nephew | — | New York |
| 12 | Joan Faitch | 2 | Niece | — | New York |
| 13 | William Banks | 34 | Head | Claim Attorney | Kentucky |
| 14 | Ruth Banks | 34 | Wife | — | Kentucky |
| 15 | William Jr. Banks | 10 | Son | — | Kentucky |
| 16 | James Banks | 3 | Son | — | Kentucky |
| 17 | Lillie Mcdonald | 58 | Head | Typist | Kentucky |
| 18 | William Mcdonald | 28 | Nephew | Laborer | Kentucky |
| 19 | Dallas Nance | 42 | Head | Salesman | Kentucky |
| 20 | Mary Nance | 42 | Wife | — | Kentucky |
| 21 | Mary K. Nance | 16 | Daughter | — | Kentucky |
| 22 | Stella Kaufman | 62 | Head | — | Kentucky |
| 23 | Frances Kaufman | 30 | Daughter | Stenographer | Kentucky |
| 24 | John Klien | 45 | Head | Locksmith Shop | Kentucky |
| 25 | Nellie Klien | 45 | Wife | — | Kentucky |
| 26 | Willis Klien | 25 | Nephew | Locksmith | Kentucky |
| 27 | Marion Haines | 46 | Head | Clerk | Kentucky |
| 28 | Violet Haines | 42 | Wife | — | Kentucky |
| 29 | Eunice Haines | 14 | Daughter | — | Kentucky |
| 30 | Joyce Haines | 13 | Daughter | — | Kentucky |
| 31 | Marion Jr. Haines | 10 | Son | — | Kentucky |
| 32 | Barthenew Bradford | 48 | Head | Salesman | Kentucky |
| 33 | Marie Bradford | 48 | Wife | Cook | Kentucky |
| 34 | Mary Bradford THIS PERSON | 19 | Daughter | Clerk | Kentucky |
| 35 | James Bradford | 18 | Son | Messenger | Kentucky |
| 36 | John R. Bradford | 17 | Son | — | Kentucky |
| 37 | Joseph S. Dale | 69 | Head | Machinist | Kentucky |
| 38 | Mattie Dale | 69 | Wife | — | Kentucky |
| 39 | Viola Dale | 26 | Daughter | Bookkeeper | Kentucky |
| 40 | Joseph S. Jr. Dale | 28 | Son | Machinist | 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)