ME
Mary Egan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Egan across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents James & Mary — first a daughter (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Egan |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Clerk |
| Industry | Dept Store |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 900 |
| 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 | ~1915 |
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 |
|---|---|---|---|---|
| Mary Egan | Spouse | — | 48 | ~1892 |
| Donald Egan | Son | — | 19 | ~1921 |
| James Egan | Head | — | 51 | ~1889 |
| Margaret Egan | Daughter | — | 23 | ~1917 |
| James Egan | Son | — | 20 | ~1920 |
| Mary Egan | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age 5
Jefferson, Kentucky · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Egan |
| Given Name | Mary C. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Daughter, age 15
Jefferson, Kentucky · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Egan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| 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 25
Jefferson-County, Kentucky · implied b. ~1915 — 6 household members
| Surname | Egan |
| Given Name | Mary Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Clerk |
| Industry | Dept Store |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 900 |
| 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 Mary Egan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Egan (~0.92 confidence) and mother Mary Egan (~0.92 confidence) and mother Mary Egan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Egan
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Egan
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Mary Egan
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Egan
Daughter · 1940 · age 25 · b. ~1915 · Kentucky
★ You are viewing this record
Sibling
Donald Egan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Egan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Egan
Sibling · 1940 · age 20
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-t0627-01366-00562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James J. Egan | 51 | Head | Machinist | Kentucky |
| 2 | Mary Egan | 48 | Wife | — | Kentucky |
| 3 | Mary Catherine Egan THIS PERSON | 25 | Daughter | Clerk | Kentucky |
| 4 | Margaret Egan | 23 | Daughter | — | Kentucky |
| 5 | James Jr. Egan | 20 | Son | Assistant Plant | Kentucky |
| 6 | Donald Egan | 19 | Son | — | Kentucky |
| 7 | Frank Klausing | 53 | Head | Rug Cleaning | Indiana |
| 8 | Margaret Klausing | 42 | Wife | — | Kentucky |
| 9 | Patricia Klausing | 10 | Daughter | — | Kentucky |
| 10 | Marie Bachman | 47 | Sister-in-law | — | Kentucky |
| 11 | John F. Watts | 73 | Head | — | Kentucky |
| 12 | Mattie Watts | 70 | Wife | — | Kentucky |
| 13 | Arthur E. Wicker | 46 | Head | Salesman | Ohio |
| 14 | Ethel Wicker | 45 | Wife | — | Ohio |
| 15 | Anita Wicker | 19 | Daughter | — | Ohio |
| 16 | Arthur Jr. Wicker | 13 | Son | — | Ohio |
| 17 | — | None | — | — | — |
| 18 | Earl Hill | 35 | Head | Asst Manager | Kentucky |
| 19 | Gertrude Hill | 37 | Wife | — | Kentucky |
| 20 | Caroline Hill | 2 | Daughter | — | Kentucky |
| 21 | Verne Haggerty | 45 | Head | Clerk | Ohio |
| 22 | Nelle Haggerty | 41 | Wife | Clerk | Kentucky |
| 23 | William Knoll | 60 | Head | Helper | Pennsylvania |
| 24 | Anna Knoll | 58 | Wife | — | Kentucky |
| 25 | James H. Underwood | 60 | Head | Private Boss | Kentucky |
| 26 | Ruby Underwood | 58 | Wife | — | Kentucky |
| 27 | Artie Cook | 28 | Head | Clerk | Kentucky |
| 28 | Dorothy Cook | 28 | Wife | — | Kentucky |
| 29 | John Sloan | 45 | Head | Salesman | Kentucky |
| 30 | Elizabeth Sloan | 42 | Wife | — | Kentucky |
| 31 | William Stiers | 40 | Head | Salesman | Kentucky |
| 32 | Marge Stiers | 38 | Wife | — | Kentucky |
| 33 | Joe Lowell | 47 | Head | Salesman | Kentucky |
| 34 | Ruth Lowell | 45 | Wife | — | Alabama |
| 35 | L. J. Lowell | 22 | Son | Salesman | Kentucky |
| 36 | Evelyn Lowell | 22 | Daughter-in-law | Manager | Kentucky |
| 37 | Ralph Brown | 35 | Head | Clerk | Kentucky |
| 38 | Brown | 35 | Wife | — | Kentucky |
| 39 | Edward Dehning | 29 | Son-in-law | Draftsman | Kentucky |
| 40 | Dorothy Dehning | 24 | Daughter | — | Kentucky |
Related Census Records
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 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)