JC
John Cavanaugh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this John Cavanaugh across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents John & Francis — first a head (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Cavanaugh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Paint Foreman |
| Industry | Air Filter Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Paint Foreman |
| Township / Ward | Louisville |
| Est. Birth Year | ~1903 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Laura Kaiser | Other | — | 58 | ~1882 |
| John Cavanaugh | Head | — | 37 | ~1903 |
| Louise Cavanaugh | Spouse | — | 35 | ~1905 |
| Emma Franck | Other | — | 61 | ~1879 |
| Louise Cavanaugh | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 17
Jefferson, Kentucky · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Occupation | Labeller |
| Industry | Varnish Works |
| 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 27
Jefferson, Kentucky · implied b. ~1903 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | John J |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Occupation | Painter |
| Industry | Auto Body Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Head, age 37
Jefferson-County, Kentucky · implied b. ~1903 — 5 household members
| Surname | Cavanaugh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville |
| 1935 Residence (County) | Jefferson |
| Occupation | Paint Foreman |
| Industry | Air Filter Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | H-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 John Cavanaugh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cavanaugh (~0.92 confidence) and mother Francis Cavanaugh (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cavanaugh
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Francis Cavanaugh
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cavanaugh
Head · 1940 · age 37 · b. ~1903 · 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
40 people indexed on this census page (nara:1940:m-t0627-01369-00647)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eileen Meyer (Jr) | 24 | Wife | — | Kentucky |
| 42 | Nancy Meyer (Jr) | 1 | Daughter | — | Kentucky |
| 43 | Herbert Metcalf | 41 | Head | General Contractor | Kansas |
| 44 | Antoinette Metcalf | 32 | Wife | — | Kentucky |
| 45 | Jack E. Metcalf | 13 | Son | — | Kansas |
| 46 | Howard F. Farriell | 32 | Head | Machinist Helper | Kentucky |
| 47 | Alene Farriell | 29 | Wife | — | Kentucky |
| 48 | Fred Farriell | 6 | Son | — | Kentucky |
| 49 | Robert Farriell | 3 | Son | — | Kentucky |
| 50 | Thomas Farriell | 0 | Son | — | Kentucky |
| 51 | Ann Defoe | 48 | Aunt | Beautician | Kentucky |
| 52 | Fred G. Frykell | 52 | Father-in-law | — | Ohio |
| 53 | Copeland Johnson | 36 | Head | Garage Foreman | Kentucky |
| 54 | Margaret Johnson | 32 | Wife | — | Kentucky |
| 55 | Jerry Johnson | 9 | Son | — | Kentucky |
| 56 | Edythe Rogers | 50 | Mother-in-law | — | Kentucky |
| 57 | Margaret Johnson | 5 | Daughter | — | Kentucky |
| 58 | Thomas E. Markwell | 39 | Head | Manager | Kentucky |
| 59 | Amelia Markwell | 43 | Wife | — | Kentucky |
| 60 | Patricia Markwell | 10 | Daughter | — | Kentucky |
| 61 | David R. Hickey | 43 | Head | Accountant | Iowa |
| 62 | Ann E. Hickey | 43 | Wife | — | Kentucky |
| 63 | Virginia Hickey | 19 | Daughter | — | Kentucky |
| 64 | Dorothy Hickey | 17 | Daughter | — | Iowa |
| 65 | Richard R. Richardson | 38 | Head | Attorney | Kentucky |
| 66 | Genevieve Richardson | 36 | Wife | — | Kentucky |
| 67 | William Richardson | 9 | Son | — | Kentucky |
| 68 | Arch Wunderlich | 60 | Head | Salesman | Ohio |
| 69 | Ida Wunderlich | 52 | Wife | — | Kentucky |
| 70 | Rhea Wunderlich | 23 | Daughter | — | Kentucky |
| 71 | Polly Birk | 57 | Sister-in-law | — | Kentucky |
| 72 | John Cavanaugh THIS PERSON | 37 | Head | Paint Foreman | Kentucky |
| 73 | Louise Cavanaugh | 35 | Wife | — | Kentucky |
| 74 | Louise Cavanaugh | 10 | Daughter | — | Kentucky |
| 75 | Laura Kaiser | 58 | Mother-in-law | — | Kentucky |
| 76 | Emma Franck | 61 | Aunt | Seamstress | Kentucky |
| 77 | Ralph L. Kennedy | 32 | Head | Medical Mgr. | Mississippi |
| 78 | Florence Kennedy | 31 | Wife | Steno-Typist | Kentucky |
| 79 | Julia A. Bickle | 68 | Mother-in-law | — | Illinois |
| 80 | Dr. Lewis Baker | 37 | Head | Physician | Kentucky |
Pedigree Summary
John
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)