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Mary Mchugh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Mchugh across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Katherine & Thomas — first a daughter (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | McHugh |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Night Chief Operator |
| Industry | Telephone & Telegraph Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1770 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Night Chief Operator |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Katherine Mchugh | Daughter | — | 31 | ~1909 |
| Louis Mchugh | Son | — | 35 | ~1905 |
| Thomas Mchugh | Head | — | 69 | ~1871 |
| Mary Mchugh | Daughter | — | 39 | ~1901 |
| Katherine Mchugh | Spouse | — | 69 | ~1871 |
| Joseph Mchugh | Son | — | 26 | ~1914 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age 19
Jefferson, Kentucky · implied b. ~1901 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Operator |
| Industry | Telephone Co. |
| 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
Daughter, age 29
Jefferson, Kentucky · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | England |
| Occupation | City Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 39
Jefferson-County, Kentucky · implied b. ~1901 — 6 household members
| Surname | McHugh |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Night Chief Operator |
| Industry | Telephone & Telegraph Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1770 |
| Highest Grade | No 8 |
| 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 Mchugh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Katherine Mchugh (~0.92 confidence) and father Thomas Mchugh (~0.92 confidence) and father Thomas Mchugh (~0.92 confidence) and mother Catherine Mchugh (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Katherine Mchugh
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
Thomas Mchugh
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Thomas Mchugh
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Catherine Mchugh
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mchugh
Daughter · 1940 · age 39 · b. ~1901 · Kentucky
★ You are viewing this record
Sibling
Louis Mchugh
Sibling · 1940 · age 35
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Mchugh
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mchugh
Sibling · 1940 · age 26
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-t0627-01370-00328)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lloyd M. Mcrae | 56 | Head | Proprietor | New York |
| 2 | Dorothy D. Mcrae | 52 | Wife | — | Mississippi |
| 3 | Lyman Rawlings | 20 | Head | Utility Clerk | Kentucky |
| 4 | Pearl Rawlings | 19 | Wife | — | Kentucky |
| 5 | Sally Harris | 48 | Head | Practical Nurse | Kentucky |
| 6 | Charles J. Harris | 24 | Son | Photo Engraver | Kentucky |
| 7 | Fahrman Parkin | 31 | Head | — | Kentucky |
| 8 | Iva Ray Parkin | 29 | Wife | — | Kentucky |
| 9 | Anna Ray Parkin | 8 | Daughter | — | Kentucky |
| 10 | Harry Bear | 29 | Head | Cement Finisher | Kentucky |
| 11 | Lucille Bear | 34 | Wife | — | Kentucky |
| 12 | John B. Eubank | 55 | Head | — | Kentucky |
| 13 | Mamie Eubank | 54 | Wife | Asst. Buyer | Kentucky |
| 14 | Hattie Hirschfield | 54 | Head | — | Kentucky |
| 15 | Eugene Crombaugh | 39 | Lodger | Manager | Kentucky |
| 16 | Noah Breed | 54 | Head | Inspector | Kentucky |
| 17 | Mamie Breed | 46 | Wife | Cook | Kentucky |
| 18 | Mary H. Breed | 20 | Daughter | Salesgirl | Kentucky |
| 19 | Thomas Mchugh | 69 | Head | — | Irish Free State |
| 20 | Katherine Mchugh | 69 | Wife | — | Irish Free State |
| 21 | Mary J. Mchugh THIS PERSON | 39 | Daughter | Night Chief Operator | Kentucky |
| 22 | Louis J. Mchugh | 35 | Son | Building Inspector | Kentucky |
| 23 | Katherine W. Mchugh | 31 | Daughter | Operator | Kentucky |
| 24 | Joseph T. Mchugh | 26 | Son | Substitute Clerk | Kentucky |
| 25 | Rebecca Hughes | 15 | Head | — | Virginia |
| 26 | Billy Oxford | 25 | Roomer | Registered Nurse | Wisconsin |
| 27 | R. F. Stutewille | 72 | Roomer | — | Kentucky |
| 28 | Russell Burton | 29 | Head | Salesman | Kentucky |
| 29 | Bernard Burton | 19 | Wife | Saleswoman | Kentucky |
| 30 | Donald Blanchard | 22 | Head | — | Kentucky |
| 31 | Mattie L. Blanchard | 65 | Wife | — | Kentucky |
| 32 | George M. Blanchard | 45 | Son | Lawyer | Arkansas |
| 33 | Leonard P. Hyatt | 55 | Head | Traveling Auditor | Mississippi |
| 34 | Louise B. Hyatt | 40 | Wife | — | Kentucky |
| 35 | Edward Terrell | 43 | Head | Salesman | Kentucky |
| 36 | Ruth Terrell | 42 | Wife | Typist | Tennessee |
| 37 | Phil Karling | 41 | Head | Soda Clerk | Kentucky |
| 38 | Betty Karling | 21 | Wife | Saleswoman | Kentucky |
| 39 | Chas. Angram | 36 | Head | Salesman | Kentucky |
| 40 | Jewell D. Angram | 11 | Daughter | — | Kentucky |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 4 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)