JM
John Mchugh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this John Mchugh across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Edward & John — first a son (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | McHugh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Fire Department |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 2050 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Clerk |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1906 |
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 |
|---|---|---|---|---|
| Edward Mchugh | Head | — | 65 | ~1875 |
| John Mchugh | Son | — | 34 | ~1906 |
| Mary Mchugh | Daughter | — | 38 | ~1902 |
| Catherine Mchugh | Daughter | — | 36 | ~1904 |
| Mary Mchugh | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 11
Jefferson, Kentucky · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | John E Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Son, age 21
Jefferson, Kentucky · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | John E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Assistant manager |
| Industry | Golf course |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Son, age 34
Jefferson-County, Kentucky · implied b. ~1906 — 5 household members
| Surname | McHugh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Clerk |
| Industry | Fire Department |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 2050 |
| 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 John Mchugh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Mchugh (~0.92 confidence) and father John Mchugh (~0.92 confidence) and father John Mchugh (~0.92 confidence) and mother Mary Mchugh (~0.92 confidence) and mother Mary Mchugh (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Mchugh
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Mchugh
b. ~1882
Source father
● Household
· direct · ~0.92
Father
John Mchugh
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Mary Mchugh
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Mary Mchugh
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mchugh
Son · 1940 · age 34 · b. ~1906 · Kentucky
★ You are viewing this record
Sibling
Catherine Mchugh
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mchugh
Sibling · 1940 · age 38
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-t0627-01376-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Strobel | 14 | Son | Bindery | Kentucky |
| 2 | Melvin Strobel | 12 | Son | — | Kentucky |
| 3 | Carmel Strobel | 11 | Daughter | — | Kentucky |
| 4 | Lafayette J. Potts | 52 | Head | Clothing Cutter | Kentucky |
| 5 | Virginia Potts | 51 | Wife | — | Kentucky |
| 6 | Francis E. Potts | 23 | Daughter | Seamstress | Kentucky |
| 7 | Jennifer L. Potts | 18 | Son | — | Kentucky |
| 8 | Joseph Kriel | 51 | Head | Foreman | Czechoslovakia |
| 9 | Marie Kriel | 48 | Wife | — | Kentucky |
| 10 | Joseph Kriel | 19 | Son | — | Kentucky |
| 11 | Gloria Kriel | 16 | Daughter | — | Kentucky |
| 12 | Milton Kriel | 14 | Son | — | Kentucky |
| 13 | Lee Kriel | 12 | Son | — | Kentucky |
| 14 | Stanley Kriel | 8 | Son | — | Kentucky |
| 15 | E. Floyd Crump | 39 | Head | Salesman | Kentucky |
| 16 | Frances Crump | 39 | Wife | — | Kentucky |
| 17 | Verna L. Crump | 10 | Daughter | — | Kentucky |
| 18 | Valentine Kaitucki | 71 | Father-in-law | Blacksmith | Kentucky |
| 19 | Ben F. Pufford | 69 | Head | Retired | Kentucky |
| 20 | Julia Pufford | 67 | Wife | — | Kentucky |
| 21 | Julia Pufford | 29 | Daughter | — | Kentucky |
| 22 | Mary Harkins | 72 | Head | — | Kentucky |
| 23 | Grace Harkins | 45 | Daughter | Press Operator | Pennsylvania |
| 24 | Catherine Harkins | 42 | Daughter | Press Operator | Kentucky |
| 25 | John Harkins | 40 | Son | Machinist Helper | Kentucky |
| 26 | Evelyn Harkins | 31 | Daughter | — | Kentucky |
| 27 | Edward Mchugh | 65 | Head | Fire Chief | Kentucky |
| 28 | Mary Mchugh | 65 | Wife | — | Kentucky |
| 29 | Mary Mchugh | 38 | Daughter | Clerk | Kentucky |
| 30 | Catherine Mchugh | 36 | Daughter | Secretary | Kentucky |
| 31 | John Mchugh THIS PERSON | 34 | Son | Clerk | Kentucky |
| 32 | Fred Heffler | 52 | Head | Carpenter | Kentucky |
| 33 | Louise Heffler | 45 | Wife | — | Kentucky |
| 34 | Ray Daniel | 51 | Head | Contractor | Kentucky |
| 35 | Lucile Daniel | 33 | Wife | — | Indiana |
| 36 | Margaret A. Daniel | 12 | Daughter | — | Kentucky |
| 37 | Thomas L. Daniel | 10 | Son | — | Kentucky |
| 38 | Ben Daniel | 5 | Son | — | Kentucky |
| 39 | Garnit C. Powers | 23 | Head | Solicitor | Kentucky |
| 40 | Mary E. Powers | 23 | Wife | — | Canada |
Pedigree Summary
John + 2 siblings
Gen 1 · 5 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)