RT
Ralph Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Miami-County, Ohio
Our Model Tree links this Ralph Thompson across the 1930 and 1940 US Censuses in Miami-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 10-person household.
Age 26
b. ~1914
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Miami-County, Ohio |
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Newton Twp |
| 1935 Residence (County) | Miami |
| Additional Details | |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 225 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farm Hand |
| Township / Ward | Newton Twp |
| Est. Birth Year | ~1914 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Bertha Thompson | Spouse | — | 44 | ~1896 |
| Ralph Thompson | Son | — | 26 | ~1914 |
| Nelda Thompson | Daughter | — | 30 | ~1910 |
| Judd Thompson | Son | — | 6 | ~1934 |
| Martha Thompson | Daughter | — | 11 | ~1929 |
| Gladys Thompson | Daughter | — | 15 | ~1925 |
| Josephine Thompson | Daughter | — | 17 | ~1923 |
| Richard Thompson | Son | — | 11 | ~1929 |
| Judd Thompson | Head | — | 45 | ~1895 |
| Charles Thompson | Son | — | 23 | ~1917 |
Census Appearances
1930
Miami, Ohio
Son, age 16
Miami, Ohio · implied b. ~1914 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Miami-County, Ohio
Son, age 26
Miami-County, Ohio · implied b. ~1914 — 10 household members
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Newton Twp |
| 1935 Residence (County) | Miami |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 225 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Ralph Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Thompson
Son · 1940 · age 26 · b. ~1914 · Ohio
★ You are viewing this record
Sibling
Charles Thompson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Thompson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Thompson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nelda Thompson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Thompson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Judd Thompson
Sibling · 1940 · age 6
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 — Miami-County, Ohio
Open full size
1940 US Federal Census — Miami-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03115-00766)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Judd Thompson | 45 | Head | Farmer | Ohio |
| 2 | Bertha Thompson | 44 | Wife | — | Ohio |
| 3 | Ralph Thompson THIS PERSON | 26 | Son | Farm Hand | Ohio |
| 4 | Charles Thompson | 23 | Son | Farmer | Ohio |
| 5 | Josephine Thompson | 17 | Daughter | — | Ohio |
| 6 | Gladys Thompson | 15 | Daughter | — | Ohio |
| 7 | Martha Thompson | 11 | Daughter | — | Ohio |
| 8 | Richard Thompson | 11 | Son | — | Ohio |
| 9 | Judd Jr. Thompson | 6 | Son | — | Ohio |
| 10 | Nelda Thompson | 30 | Daughter | Clerk | Ohio |
| 11 | W. A. Meredith | 68 | Head | Farmer | Ohio |
| 12 | Jennie Meredith | 65 | Wife | — | New York |
| 13 | Lillian G. Meredith | 33 | Daughter | — | New York |
| 14 | S. L. West | 50 | Head | Farmer | Ohio |
| 15 | Pearl West | 46 | Wife | — | Ohio |
| 16 | Robert West | 18 | Son | — | Ohio |
| 17 | John West | 17 | Son | — | Ohio |
| 18 | Kenneth West | 16 | Son | — | Ohio |
| 19 | Nora Jean West | 12 | Daughter | — | Ohio |
| 20 | Barbara Ellen West | 8 | Daughter | — | Ohio |
| 21 | James Owen West | 4 | Son | — | Ohio |
| 22 | Minnie Coppock | 55 | Head | Domestic | Ohio |
| 23 | Donald A. Coppock | 23 | Son | Farmer | Ohio |
| 24 | Ora Fair | 64 | Head | Farmer | Ohio |
| 25 | Clara Fair | 58 | Wife | — | Ohio |
| 26 | Charles Pemberton | 44 | Head | Research Work | Ohio |
| 27 | Clara Grace Pemberton | 47 | Wife | — | Indiana |
| 28 | Donald C. Pemberton | 15 | Son | — | Ohio |
| 29 | James R. Pemberton | 12 | Son | — | Ohio |
| 30 | Fred Matthews | 50 | Head | City Water Works / Truck Farmer | Ohio |
| 31 | Mari Belle Matthews | 14 | Daughter | — | Ohio |
| 32 | Melvin Kelly | 23 | Son in law | Clerk | Ohio |
| 33 | Helen Kelly | 22 | Daughter | Office Work | Ohio |
| 34 | Raymond Drake | 47 | Head | Laborer | Ohio |
| 35 | Alora Drake | 16 | Daughter | — | Ohio |
| 36 | Roger Black | 65 | Head | — | Ohio |
| 37 | Vinnie Black | 62 | Wife | — | Ohio |
| 38 | Vacant Farm | None | — | — | — |
Related Census Records
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)