FK
Frank Knight — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Frank Knight across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Knight |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Air-Brakeman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 2280 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Air-Brakeman |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1888 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| John Knight | Son | — | 19 | ~1921 |
| Donald Knight | Son | — | 12 | ~1928 |
| Margaret Knight | Daughter | — | 16 | ~1924 |
| Isabelle Knight | Spouse | — | 51 | ~1889 |
| Frank Knight | Head | — | 52 | ~1888 |
Census Appearances
1920
Jefferson, Kentucky
Head, age 31
Jefferson, Kentucky · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Fireman |
| Industry | Fire Dept. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Head, age 41
Jefferson, Kentucky · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 28 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Pipe fitter helper |
| Industry | Steam railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2,000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 52
Jefferson-County, Kentucky · implied b. ~1888 — 5 household members
| Surname | Knight |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Air-Brakeman |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 2280 |
| 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 Frank Knight across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Knight
Head · 1940 · age 52 · b. ~1888 · Kentucky
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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-t0627-01376-00065)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles J. Fisher | 66 | Head | Janitor | Kentucky |
| 42 | Edith Fisher | 64 | Wife | — | Kentucky |
| 43 | Chester Zimmerman | 32 | Head | Senior Clerk | Kentucky |
| 44 | Ruth Zimmerman | 24 | Wife | — | Kentucky |
| 45 | Gordon Zimmerman | 2 | Son | — | Kentucky |
| 46 | Julia Fox | 57 | Head | — | Indiana |
| 47 | James Fox | 28 | Son | Locomotive Fireman | Indiana |
| 48 | Harriett Fox | 17 | Daughter | Stenographer | Indiana |
| 49 | Nora Donovan | 83 | Mother | — | Kentucky |
| 50 | Martin Eckmann | 42 | Head | Cabinet Mkr. | Kentucky |
| 51 | Josephine Eckmann | 42 | Wife | — | Kentucky |
| 52 | Clarice Eckmann | 19 | Daughter | Junior Clerk | Kentucky |
| 53 | Louis Eckmann | 15 | Son | — | Kentucky |
| 54 | Albert Eckmann | 9 | Son | — | Kentucky |
| 55 | Clarence Eckmann | 6 | Son | — | Kentucky |
| 56 | Roberta Eckmann | 5 | Daughter | — | Kentucky |
| 57 | Margaret Mathison | 57 | Head | — | Kentucky |
| 58 | Mary Margaret Mathison | 30 | Daughter | Stenographer | Kentucky |
| 59 | Harry Lee Mathison | 20 | Son | Mach. Operator | Kentucky |
| 60 | Edw. J. Jr. Mathison | 28 | Head | Clerk | Kentucky |
| 61 | Ann Mathison | 26 | Wife | — | Kentucky |
| 62 | Nancy Lee Mathison | 1 | Daughter | — | Kentucky |
| 63 | Frank Knight THIS PERSON | 52 | Head | Air-Brakeman | Kentucky |
| 64 | Isabelle Knight | 51 | Wife | — | Kentucky |
| 65 | John Francis Knight | 19 | Son | Wood-Worker | Kentucky |
| 66 | Margaret E. Knight | 16 | Daughter | — | Kentucky |
| 67 | Donald Knight | 12 | Son | — | Kentucky |
| 68 | Robert Fredrich | 33 | Head | Carpenter | Kentucky |
| 69 | Virginia Fredrich | 27 | Wife | Inspector | Kentucky |
| 70 | Gerald Fredrich | 7 | Son | — | Kentucky |
| 71 | Joan Fredrich | 3 | Daughter | — | Indiana |
| 72 | W. R. Borders | 32 | Head | Rate Clerk | Kentucky |
| 73 | Robert Edw. Borders | 9 | Son | — | Kentucky |
| 74 | Donald Lee Borders | 8 | Son | — | Kentucky |
| 75 | Frederick W. Borden | 62 | Head | Wood Worker | Kentucky |
| 76 | Willie Borden | 56 | Wife | — | Kentucky |
| 77 | Louise Kelley | 62 | Head | — | New Jersey |
| 78 | William Dalworth | 30 | Head | Proprietor | Kentucky |
| 79 | Frances Dalworth | 28 | Wife | — | Kentucky |
| 80 | William Dalworth | 7 | Son | — | 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)