HT
Harry Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Harry Thomas across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed), with identified parents Charles & Effie — first a head (b.~1901), then head of a 8-person household.
Age 39
b. ~1901
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Hardin twp. |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | Farm operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 91 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Operator |
| Township / Ward | Hardin Twp |
| Est. Birth Year | ~1901 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Dolores Thomas | Daughter | — | 10 | ~1930 |
| Ellamae Thomas | Daughter | — | 8 | ~1932 |
| Audrey Thomas | Daughter | — | 12 | ~1928 |
| Janice Thomas | Daughter | — | 5 | ~1935 |
| Harry Thomas | Head | — | 39 | ~1901 |
| Edward Tarneten | Other | — | 70 | ~1870 |
| Wayne Thomas | Son | — | 16 | ~1924 |
| Sadie Thomas | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Pottawattamie, Iowa
Son, age 19
Pottawattamie, Iowa · implied b. ~1901 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | laborer |
| Industry | home farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pottawattamie, Iowa
Head, age 29
Pottawattamie, Iowa · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | General Farming |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Head, age 39
Pottawattamie-County, Iowa · implied b. ~1901 — 8 household members
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Hardin twp. |
| 1935 Residence (County) | Pottawattamie |
| Occupation | Farm operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 91 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Harry Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Thomas (~0.92 confidence) and mother Effie Thomas (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Thomas
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Effie Thomas
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Thomas
Head · 1940 · age 39 · b. ~1901 · Iowa
★ 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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01198-00214)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse L. Gray | 29 | Head | Farm Hand | Iowa |
| 2 | Myra L. Gray | 32 | Wife | — | Iowa |
| 3 | Claude Christian | 9 | Nephew | — | Iowa |
| 4 | Oscar A. Tarneten | 33 | Head | Farmer | Iowa |
| 5 | Ethel Tarneten | 27 | Wife | — | Iowa |
| 6 | Richard Tarneten | 3 | Son | — | Iowa |
| 7 | Marilyn Tarneten | 1 | Daughter | — | Iowa |
| 8 | Henry Coker | 62 | Hired Hand | Farm Helper | Germany |
| 9 | William Rodenburg | 57 | Head | Farm Operator | Germany |
| 10 | Bridget Rodenburg | 61 | Wife | — | Iowa |
| 11 | Sherman Mark | 18 | Hired Hand | Farm Hand | Iowa |
| 12 | Harry Thomas THIS PERSON | 39 | Head | Farm Operator | Iowa |
| 13 | Sadie Thomas | 38 | Wife | — | Iowa |
| 14 | Wayne Thomas | 16 | Son | Farm Helper | Iowa |
| 15 | Audrey Thomas | 12 | Daughter | — | Iowa |
| 16 | Dolores Thomas | 10 | Daughter | — | Iowa |
| 17 | Ellamae Thomas | 8 | Daughter | — | Iowa |
| 18 | Janice Thomas | 5 | Daughter | — | Iowa |
| 19 | Edward Tarneten | 70 | Hired Hand | Farm Hand | Iowa |
| 20 | Frank Slobodnik | 32 | Head | Farm Operator | Kansas |
| 21 | Anna Slobodnik | 30 | Wife | — | Iowa |
| 22 | Donald Slobodnik | 9 | Son | — | Iowa |
| 23 | William Slobodnik | 8 | Son | — | Iowa |
| 24 | James Slobodnik | 4 | Son | — | Iowa |
| 25 | John Slobodnik | 4 | Son | — | Iowa |
| 26 | Ray W. Barnett | 48 | Head | Farm Operator | Iowa |
| 27 | Iny W. Barnett | 48 | Wife | — | Iowa |
| 28 | Donald W. Barnett | 23 | Son | Farm Operator | Iowa |
| 29 | Gerald Lee Barnett | 14 | Son | — | Iowa |
| 30 | Ray Morris | 48 | Head | Farm Operator | Iowa |
| 31 | Mary Morris | 37 | Wife | — | Iowa |
| 32 | Gordon L. Green | 27 | Head | Merchant | Iowa |
| 33 | Maxine M. Green | 31 | Wife | — | Iowa |
| 34 | Le Roy Green | 9 | Son | — | Iowa |
| 35 | Lawrence Flood | 28 | Head | Farm Operator | Iowa |
| 36 | Marie Flood | 28 | Wife | — | Iowa |
| 37 | Lawrence Neal Flood | 5 | Son | — | Iowa |
| 38 | Faye Flood | 3 | Daughter | — | Iowa |
| 39 | Colleen Flood | 1 | Daughter | — | Iowa |
| 40 | Clifford Morrison | 23 | Hired Hand | Farm Helper | Iowa |
Pedigree Summary
Harry
Gen 1 · 2 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)