ET
Ernest Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Butler-County, Ohio
Our Model Tree links this Ernest Thompson across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed), with identified parents Perry & Nellie — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Ohio |
| Surname | Thompson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Butler |
| Additional Details | |
| Occupation | App. Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 884 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | App. Mechanic |
| Township / Ward | Hamilton |
| Est. Birth Year | ~1920 |
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 Ernest | Age | Birth yr |
|---|---|---|---|---|
| Perry Thompson | Head | — | 41 | ~1899 |
| Ernest Thompson | Son | — | 20 | ~1920 |
| Nellie Thompson | Spouse | — | 37 | ~1903 |
| Janet Thompson | Daughter | — | 6 | ~1934 |
| Daisy Thompson | Daughter | — | 15 | ~1925 |
Census Appearances
1920
Butler, Ohio
Son, age
Butler, Ohio · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Butler, Ohio
Son, age 10
Butler, Ohio · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Butler-County, Ohio
Son, age 20
Butler-County, Ohio · implied b. ~1920 — 5 household members
| Surname | Thompson |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Butler |
| Occupation | App. Mechanic |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 884 |
| 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 Ernest Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Perry Thompson (~0.92 confidence) and mother Nellie Thompson (~0.92 confidence) and mother Nellie Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Perry Thompson
b. ~1899
Source father
● Household
· direct · ~0.92
Mother
Nellie Thompson
b. ~1903
Source mother
● Household
· direct · ~0.92
Mother
Nellie Thompson
b. ~1903
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ernest Thompson
Son · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Janet Thompson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daisy Thompson
Sibling · 1940 · age 15
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 — Butler-County, Ohio
Open full size
1940 US Federal Census — Butler-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03033-00624)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Doris Meier | 1 | Daughter | — | Ohio |
| 42 | Edward J. Meier | 30 | Head | Meat Cutter | Ohio |
| 43 | Ida Meier | 32 | Wife | — | Ohio |
| 44 | Juanita Meier | 8 | Daughter | — | Ohio |
| 45 | William C. Meier | 4 | Son | — | Ohio |
| 46 | Perry Thompson | 41 | Head | Foreman | Kentucky |
| 47 | Nellie Thompson | 37 | Wife | — | Kentucky |
| 48 | Ernest Thompson THIS PERSON | 20 | Son | App. Mechanic | Kentucky |
| 49 | Daisy Thompson | 15 | Daughter | — | Ohio |
| 50 | Janet Thompson | 6 | Daughter | — | Ohio |
| 51 | Homer Mcfadden | 33 | Head | Owner | Kentucky |
| 52 | Neoma Mcfadden | 26 | Wife | Beautician | Kentucky |
| 53 | Mathias Euche | 56 | Head | Moulder | Austria |
| 54 | Teresa Euche | 45 | Wife | — | Austria |
| 55 | John Euche | 26 | Son | Paper Mill Worker | Ohio |
| 56 | Robert Gennwein | 58 | Head | Machinist | Ohio |
| 57 | Cora Gennwein | 59 | Wife | — | Kentucky |
| 59 | George Kenners | 27 | Head | Bartender | Ohio |
| 60 | Cora Kenners | 32 | Wife | — | Ohio |
| 61 | Harry Keppler | 56 | Father-in-law | Brick Layer | Ohio |
| 62 | Lillian Keppler | 55 | Mother-in-law | — | Ohio |
| 63 | Robert Mercer | 40 | Head | Trainman | Virginia |
| 64 | May Mercer | 46 | Wife | — | Ohio |
| 65 | Allene Mercer | 17 | Daughter | — | Arkansas |
| 66 | Laura Smith | 44 | Roomer | Housework | Virginia |
| 67 | Ralph Burget | 46 | Head | Owner | Ohio |
| 68 | Lydia Burget | 42 | Wife | — | Ohio |
| 69 | Robert Burget | 15 | Son | — | Ohio |
| 70 | Herman Nulli | 46 | Head | Machinist | Ohio |
| 71 | Lucille Nulli | 42 | Wife | — | Indiana |
| 72 | Betty Butcher | 25 | Step-daughter | Market Research | Ohio |
| 73 | Carrie Rohrkumper | 51 | Head | — | Ohio |
| 74 | Ruth Rohrkumper | 31 | Daughter | Stenographer | Ohio |
| 75 | Ralph Rohrkumper | 19 | Son | Market Research | Ohio |
| 76 | Lois Rohrkumper | 17 | Daughter | — | Ohio |
| 77 | Otto Wambach | 59 | Head | Millwright | Indiana |
| 78 | Mary Wambach | 53 | Wife | — | Ohio |
| 79 | John Bierman | 45 | Head | Superintend. | Ohio |
| 80 | Daisy Bierman | 35 | Wife | — | Kentucky |
Pedigree Summary
Ernest + 2 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)