MF
Mary Frey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Frey across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Mose & Charles — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Frey |
| Given Name | Mary Elizabeth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Kathleen Coffey | Other | — | 23 | ~1917 |
| Irene Frey | Spouse | — | 49 | ~1891 |
| Charles Frey | Head | — | 56 | ~1884 |
| Mary Frey | Daughter | — | 21 | ~1919 |
| Frank Coffey | Other | — | 26 | ~1914 |
| John Gannon | Other | — | 28 | ~1912 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age
Jefferson, Kentucky · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fray |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Daughter, age 11
Jefferson, Kentucky · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frey |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 21
Jefferson-County, Kentucky · implied b. ~1919 — 6 household members
| Surname | Frey |
| Given Name | Mary Elizabeth |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Highest Grade | Hs 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 Frey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mose Fray (~0.92 confidence) and father Charles Frey (~0.92 confidence) and mother Julia Fray (~0.92 confidence) and mother Irene Frey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mose Fray
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Charles Frey
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Julia Fray
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Irene Frey
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Frey
Daughter · 1940 · age 21 · b. ~1919 · 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
39 people indexed on this census page (nara:1940:m-t0627-01370-00455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Worth | 22 | boarder | Nickel Plater | Kentucky |
| 42 | Lizzie Dyer | 81 | boarder | — | Kentucky |
| 43 | Ray Bryant | 38 | boarder | Foreman | Kentucky |
| 44 | Newton Herndon | 48 | boarder | Salesman | Kentucky |
| 45 | William Vessles | 20 | boarder | Laborer | Kentucky |
| 46 | Houston Fisher | 38 | boarder | Lather | Tennessee |
| 47 | Earl Thomas | 28 | head | Porter | Illinois |
| 48 | Jewell Thomas | 21 | wife | — | Florida |
| 49 | Fanny Khourt | 70 | head | — | Austria |
| 50 | Sam Khourt | 35 | son | Salesman | Kentucky |
| 51 | William Mcleod | 37 | head | Salesman | Massachusetts |
| 52 | Ola Mcleod | 28 | wife | — | Ohio |
| 54 | Charles A. Frey | 56 | head | Maintenance Man | Kentucky |
| 55 | Irene Frey | 49 | wife | — | Kentucky |
| 56 | Mary Elizabeth Frey THIS PERSON | 21 | daughter | — | Kentucky |
| 57 | Frank Coffey | 26 | boarder | Student Salesman | Kentucky |
| 58 | Kathleen Coffey | 23 | boarder | — | Kentucky |
| 59 | John T. Gannon | 28 | boarder | Salesman | Kentucky |
| 60 | Neil Skillman | 29 | head | Installator | California |
| 61 | Edna Skillman | 29 | wife | — | Kentucky |
| 62 | Clint A. Tucker | 70 | head | Conductor | Kentucky |
| 63 | Ella J. Tucker | 64 | wife | — | Kentucky |
| 64 | Ernest Tucker | 34 | son | Mechanic | Kentucky |
| 65 | Doris Tucker | 11 | grand-daughter | — | Kentucky |
| 66 | Hugh J. Doben | 47 | head | Bookkeeper Salesman | Kentucky |
| 67 | Erma Doben | 36 | wife | — | Kentucky |
| 68 | Thessa Threge | 38 | head | Nurse | Kentucky |
| 69 | Mckelley Bradshaw | 31 | head | Carpenter | Kentucky |
| 70 | Mae Bradshaw | 29 | wife | — | Kentucky |
| 71 | Mary Lou Bradshaw | 6 | daughter | — | Kentucky |
| 72 | Rebecca Goldstein | 76 | head | — | Poland |
| 73 | Mollie Goldstein | 45 | daughter | Cashier Chooser | Kentucky |
| 74 | Molly Lerner | 38 | daughter | — | Kentucky |
| 75 | Louis Lerner | 39 | son-in-law | Clerk | Kentucky |
| 76 | Howard H. Lerner | 2 | grand-son | — | Kentucky |
| 77 | Robert Kaufman | 44 | son-in-law | Partner | Kentucky |
| 78 | Sarah Kaufman | 42 | daughter | — | Kentucky |
| 79 | Jay F. Kaufman | 12 | grand-son | — | Kentucky |
| 80 | Harvey H. Kaufman | 6 | grand-son | — | Kentucky |
Pedigree Summary
Mary
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)