TH
Thomas Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kossuth-County, Iowa
Our Model Tree links this Thomas Hamilton across the 1930 and 1940 US Censuses in Kossuth-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 14-person household.
Age 10
b. ~1930
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kossuth-County, Iowa |
| Surname | Hamilton |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Greenwood |
| 1935 Residence (County) | Kossuth |
| Additional Details | |
| Highest Grade | S-9 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Greenwood |
| Est. Birth Year | ~1930 |
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.
14 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Hamilton | Son | — | 10 | ~1930 |
| Edward Hamilton | Son | — | 20 | ~1920 |
| Gertrude Hamilton | Spouse | — | 47 | ~1893 |
| Martin Hamilton | Son | — | 12 | ~1928 |
| Joseph Hamilton | Son | — | 8 | ~1932 |
| Mary Hamilton | Daughter | — | 18 | ~1922 |
| Harold Hamilton | Head | — | 45 | ~1895 |
| Robert Hamilton | Son | — | 14 | ~1926 |
| Leo Hamilton | Son | — | 7 | ~1933 |
| Harold Hamilton | Son | — | 17 | ~1923 |
| George Hamilton | Son | — | 16 | ~1924 |
| Deny Hamilton | Son | — | 5 | ~1935 |
| Luke Hamilton | Son | — | 11 | ~1929 |
| John Hamilton | Son | — | 21 | ~1919 |
Census Appearances
1930
Kossuth, Iowa
Son, age 1
Kossuth, Iowa · implied b. ~1929 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Tomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Kossuth-County, Iowa
Son, age 10
Kossuth-County, Iowa · implied b. ~1930 — 14 household members
| Surname | Hamilton |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Greenwood |
| 1935 Residence (County) | Kossuth |
| Highest Grade | S-9 |
| 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 Thomas Hamilton across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Hamilton
Son · 1940 · age 10 · b. ~1930 · Iowa
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Sibling
George Hamilton
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Hamilton
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Hamilton
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luke Hamilton
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Deny Hamilton
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Hamilton
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Hamilton
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hamilton
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Hamilton
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Hamilton
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Hamilton
Sibling · 1940 · age 14
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 — Kossuth-County, Iowa
Open full size
1940 US Federal Census — Kossuth-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01173-00382)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice Nyman | 37 | Wife | — | Minnesota |
| 42 | Wayne Nyman | 14 | Son | — | Iowa |
| 43 | Dale Nyman | 8 | Son | — | Iowa |
| 44 | John Johannsen | 36 | Head | Farm Operator | Iowa |
| 45 | Lillie Johannsen | 32 | Wife | — | Iowa |
| 46 | Morris Johannsen | 11 | Son | — | Iowa |
| 47 | Marlys Johannsen | 9 | Daughter | — | Iowa |
| 48 | Lawrence Johannsen | 28 | Head | Farm Operator | Iowa |
| 49 | Edna Johannsen | 25 | Wife | — | Iowa |
| 50 | Kathryn Johannsen | 1 | Daughter | — | Iowa |
| 51 | Ever Bergum | 54 | Head | Farm Operator | Iowa |
| 52 | Katrina Bergum | 45 | Wife | — | Iowa |
| 53 | Arthur Bergum | 24 | Son | Farm Operator | Iowa |
| 54 | Raymond Bergum | 20 | Son | Farm Operator | Iowa |
| 55 | Julia Bergum | 18 | Daughter | — | Iowa |
| 56 | Helen Bergum | 15 | Daughter | — | Iowa |
| 57 | John A. Nyman | 47 | Head | Farm Operator | Iowa |
| 58 | Victoria Nyman | 44 | Wife | — | Iowa |
| 59 | Mavis (A.) Nyman | 17 | Daughter | — | Iowa |
| 60 | John C. Nyman | 13 | Son | — | Iowa |
| 61 | Harley Braddock | 54 | Head | Farm Operator | Illinois |
| 62 | Irene Braddock | 48 | Wife | — | Illinois |
| 63 | Frances Braddock | 19 | Daughter | — | Iowa |
| 64 | Raymond Braddock | 16 | Son | Farm Laborer | Iowa |
| 65 | Clarence Braddock | 13 | Son | — | Iowa |
| 66 | Cecil Braddock | 10 | Son | — | Iowa |
| 67 | Harold Hamilton | 45 | Head | Hatchery Operator | Iowa |
| 68 | Gertrude Hamilton | 47 | Wife | — | Iowa |
| 69 | John Hamilton | 21 | Son | Farm Laborer | Iowa |
| 70 | Edward Hamilton | 20 | Son | Farm Laborer | Iowa |
| 71 | Mary Ann Hamilton | 18 | Daughter | — | Iowa |
| 72 | Harold Hamilton | 17 | Son | — | Iowa |
| 73 | George Hamilton | 16 | Son | — | Iowa |
| 74 | Robert Hamilton | 14 | Son | — | Iowa |
| 75 | Martin Hamilton | 12 | Son | — | Iowa |
| 76 | Luke Hamilton | 11 | Son | — | Iowa |
| 77 | Thomas Hamilton THIS PERSON | 10 | Son | — | Iowa |
| 78 | Joseph Hamilton | 8 | Son | — | Iowa |
| 79 | Leo Hamilton | 7 | Son | — | Iowa |
| 80 | Deny Hamilton | 5 | Son | — | Iowa |
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)