RT
Ruth Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Ruth Thompson across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents Bert & Gus — first a daughter (b.~1905), then head of a 6-person household.
Age 35
b. ~1905
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Thompson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Private Garage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 848 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Bookkeeper |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1905 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Thompson | Daughter | — | 35 | ~1905 |
| Helen Thompson | Daughter | — | 22 | ~1918 |
| Bert Thompson | Head | — | 63 | ~1877 |
| Elmer Thompson | Son | — | 31 | ~1909 |
| Hewitt Thompson | Son | — | 19 | ~1921 |
| Lula Thompson | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Jefferson, Kentucky
Daughter, age 14
Jefferson, Kentucky · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Jefferson, Kentucky
Daughter, age 25
Jefferson, Kentucky · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Bookkeeper |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Daughter, age 35
Jefferson-County, Kentucky · implied b. ~1905 — 6 household members
| Surname | Thompson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Bookkeeper |
| Industry | Private Garage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 848 |
| 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 Ruth Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bert Thompson (~0.92 confidence) and father Gus Thompson (~0.92 confidence) and father Curtis Thompson (~0.92 confidence) and mother Lula Thompson (~0.92 confidence) and mother Lula Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bert Thompson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Gus Thompson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Curtis Thompson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Lula Thompson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Lula Thompson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Thompson
Daughter · 1940 · age 35 · b. ~1905 · Kentucky
★ You are viewing this record
Sibling
Hewitt Thompson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Thompson
Sibling · 1940 · age 31
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-t0627-01374-00695)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lena Berkey | 60 | Sister | — | Kentucky |
| 42 | Raymond Hummey | 54 | Head | Accountant | Kentucky |
| 43 | Delilah Hummey | 38 | Wife | — | Kentucky |
| 44 | Harvey Winkler | 80 | Uncle | — | Kentucky |
| 45 | Margaret Riley | 48 | Head | — | Kentucky |
| 46 | John Riley | 50 | Brother | Hammer Man | Kentucky |
| 47 | John J. Riley | 25 | Nephew | Clerk | Kentucky |
| 48 | William Riley | 22 | Nephew | Clerk | Kentucky |
| 49 | David Gray | 40 | Head | Manager | Kentucky |
| 50 | Inez Gray | 41 | Wife | — | Kentucky |
| 51 | Marguerite Gray | 16 | Daughter | — | Kentucky |
| 52 | Lois Gray | 14 | Daughter | — | Kentucky |
| 53 | Mary David Gray | 11 | Daughter | — | Kentucky |
| 54 | James Gray | 8 | Son | — | Kentucky |
| 55 | Barbara Gray | 3 | Daughter | — | Kentucky |
| 56 | Richard Gray | 1 | Son | — | Kentucky |
| 57 | Milton Waldrop | 69 | Head | — | Kentucky |
| 58 | Ollie Waldrop | 59 | Wife | — | Virginia |
| 59 | Marvin Waldrop | 26 | Son | Pressman | Kentucky |
| 60 | Herman De Witt | 33 | Head | Helper | Kentucky |
| 61 | Dorothy De Witt | 27 | Wife | Waitress | Kentucky |
| 62 | J. Richard Mcdowell | 60 | Head | Owner | Kentucky |
| 63 | Floyd Kessler | 50 | Head | Plumber | Kentucky |
| 64 | June Kessler | 47 | Wife | — | Kentucky |
| 65 | Roberta Kessler | 21 | Daughter | — | Kentucky |
| 66 | Marian Kessler | 19 | Daughter | Journey Woman | Kentucky |
| 67 | Warren Kessler | 18 | Son | Carrier | Kentucky |
| 68 | Wesley Kessler | 15 | Son | Carrier | Kentucky |
| 69 | John P. | 58 | Brother | Clerk | Kentucky |
| 70 | Bert Thompson | 63 | Head | Carpenter | Kentucky |
| 71 | Lula Thompson | 59 | Wife | — | Kentucky |
| 72 | Ruth Thompson THIS PERSON | 35 | Daughter | Bookkeeper | Kentucky |
| 73 | Elmer Thompson | 31 | Son | Inspector | Kentucky |
| 74 | Helen Thompson | 22 | Daughter | Typist | Kentucky |
| 75 | Hewitt Thompson | 19 | Son | — | Kentucky |
| 76 | Patricia | 25 | Daughter | — | Kentucky |
| 77 | Frank J. Ryan | 69 | Head | Watchman | Kentucky |
| 78 | Margaret Ryan | 70 | Wife | — | Kentucky |
| 79 | Curtis M. Frey | 47 | Lodger | Worker | Kentucky |
| 80 | John Presta | 31 | Head | Man | Kentucky |
Related Census Records
Pedigree Summary
Ruth + 3 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)