HT
Harold Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Scioto-County, Ohio
Our Model Tree links this Harold Thompson across the 1910, 1920, 1930 and 1940 US Censuses in Scioto-County, Ohio (XGBoost, ~Confirmed), with identified parents Isaac & Isaac — first a head (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scioto-County, Ohio |
| Surname | Thompson |
| Given Name | Harold R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Scioto |
| Additional Details | |
| Occupation | Music teacher |
| Industry | Own School |
| Class of Worker | OA |
| Income (1939) | 914 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Teacher |
| Township / Ward | Portsmouth |
| Est. Birth Year | ~1907 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Kay Thompson | Daughter | — | 3 | ~1937 |
| Harold Thompson | Head | — | 33 | ~1907 |
| Eloise Thompson | Spouse | — | 26 | ~1914 |
Census Appearances
1910
Scioto, Ohio
Son, age 3
Scioto, Ohio · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Scioto, Ohio
Son, age 12
Scioto, Ohio · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Harold R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Scioto, Ohio
Son, age 23
Scioto, Ohio · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Teacher |
| Industry | Music |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Scioto-County, Ohio
Head, age 33
Scioto-County, Ohio · implied b. ~1907 — 3 household members
| Surname | Thompson |
| Given Name | Harold R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Scioto |
| Occupation | Music teacher |
| Industry | Own School |
| Class of Worker | OA |
| Income (1939) | 914 |
| Highest Grade | Hs 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 Harold Thompson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Thompson (~0.92 confidence) and father Isaac Thompson (~0.92 confidence) and mother Estella Thompson (~0.92 confidence) and mother Katherine Thompson (~0.92 confidence) and mother Nellie Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Thompson
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Isaac Thompson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Estella Thompson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Katherine Thompson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Nellie Thompson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Thompson
Head · 1940 · age 33 · b. ~1907 · Ohio
★ 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 — Scioto-County, Ohio
Open full size
1940 US Federal Census — Scioto-County, Ohio
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03143-00059)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Orin L. Graves | 47 | Head | State Representative | Ohio |
| 2 | Kay Graves | 45 | Wife | — | Ohio |
| 3 | George E. Gildea | 55 | Head | Sole Cutter | Ohio |
| 4 | Edna E. Gildea | 51 | Wife | — | Ohio |
| 5 | Walter M. Grierson | 28 | Head | Meat Cutter | Ohio |
| 6 | Gladys M. Grierson | 23 | Wife | — | Ohio |
| 7 | Bettie J. Grierson | 3 | Daughter | — | Ohio |
| 8 | Marilyn S. Grierson | 2 | Daughter | — | Ohio |
| 9 | Linda L. Grierson | 0 | Daughter | — | Ohio |
| 10 | Harold R. Thompson THIS PERSON | 33 | Head | Music Teacher | Ohio |
| 11 | Eloise Thompson | 26 | Wife | — | Ohio |
| 12 | Kay Thompson | 3 | Daughter | — | Ohio |
| 13 | Walter H. Wells | 43 | Head | Truck Driver | Ohio |
| 14 | Evelyn I. Wells | 38 | Wife | — | Ohio |
| 15 | Anna Shank | 68 | Mother-in-law | — | Ohio |
| 16 | Kathryn Germond | 45 | Sister-in-law | — | Ohio |
| 17 | Gus V. Warman | 58 | Head | Proprietor | Ohio |
| 18 | Chattie S. Warman | 56 | Wife | — | Ohio |
| 19 | Roger E. Warman | 24 | Son | Laborer | Ohio |
| 20 | Richard K. Warman | 20 | Son | Dip Heels | Ohio |
| 21 | James Moore | 59 | Head | — | Kentucky |
| 22 | Fannie E. Moore | 48 | Wife | — | West Virginia |
| 23 | Dorothy L. Moore | 23 | Daughter | — | Ohio |
| 24 | Harry J. Moore | 18 | Son | — | Ohio |
| 25 | Mary K. Moore | 15 | Daughter | — | Ohio |
| 26 | Ralph M. Moore | 14 | Son | — | Ohio |
| 27 | Charles L. Wales | 44 | Head | Foreman | Ohio |
| 28 | Edna P. Wales | 43 | Wife | — | Ohio |
| 29 | John B. Heid | 46 | Head | Secretary | Ohio |
| 30 | Lillie E. Heid | 46 | Wife | — | Ohio |
| 31 | Millard F. Stewart | 38 | Head | Storekeeper | Virginia |
| 32 | Ruth M. Stewart | 38 | Wife | — | Virginia |
| 33 | Ralph M. Kohn | 41 | Head | Welder | Illinois |
| 34 | Louise M. Kohn | 40 | Wife | Sales Lady | Illinois |
| 35 | Ralph M. Jr. Kohn | 13 | Son | — | Georgia |
| 36 | Kenneth Kohn | 11 | Son | — | Ohio |
| 37 | Lester Hartman | 44 | Head | Baggage Man | Ohio |
| 38 | Beatrice Hartman | 45 | Wife | — | Kentucky |
| 39 | Jack A. Maynard | 19 | Nephew | — | Kentucky |
Pedigree Summary
Harold
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)