HT
Herbert Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this Herbert Thomas across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Centerville |
| 1935 Residence (County) | Appanoose |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Iowa |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Hammond City |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Herbert | Age | Birth yr |
|---|---|---|---|---|
| Roy Thomas | Son | — | 7 | ~1933 |
| Steve Thomas | Son | — | 16 | ~1924 |
| Donald Thomas | Son | — | 14 | ~1926 |
| Steve Thomas | Head | — | 39 | ~1901 |
| Golda Thomas | Spouse | — | 34 | ~1906 |
| Barbara Thomas | Daughter | — | 9 | ~1931 |
| Herbert Thomas | Son | — | 11 | ~1929 |
Census Appearances
1930
Lake, Indiana
Son, age 1
Lake, Indiana · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Lake-County, Indiana
Son, age 11
Lake-County, Indiana · implied b. ~1929 — 7 household members
| Surname | Thomas |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Centerville |
| 1935 Residence (County) | Appanoose |
| Highest Grade | No 5 |
| 1935 Residence | Iowa |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Herbert Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Herbert Thomas
Son · 1940 · age 11 · b. ~1929 · Indiana
★ You are viewing this record
Sibling
Donald Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Thomas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Steve Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Thomas
Sibling · 1940 · age 7
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 — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01066-01035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Mcclenahan | 17 | Daughter | — | Indiana |
| 42 | Leland Jr. Mcclenahan | 9 | Son | — | Indiana |
| 43 | Steve Thomas | 39 | Head | Cement Finisher | Missouri |
| 44 | Golda Thomas | 34 | Wife | — | Missouri |
| 45 | Steve, Jr. Thomas | 16 | Son | — | Iowa |
| 46 | Donald Thomas | 14 | Son | — | Indiana |
| 47 | Herbert Thomas THIS PERSON | 11 | Son | — | Indiana |
| 48 | Barbara Thomas | 9 | Daughter | — | Indiana |
| 49 | Roy Wayne Thomas | 7 | Son | — | Iowa |
| 50 | John Donan | 36 | Head | Clerical | Illinois |
| 51 | Geraldine Donan | 33 | Wife | — | Illinois |
| 52 | Paul Lucien Donan | 4 | Son | — | New York |
| 53 | David Donan | 2 | Son | — | Indiana |
| 54 | Joseph Flamm | 58 | Head | Machinist | Poland |
| 55 | Helen Flamm | 48 | Wife | — | Poland |
| 56 | Anne Flamm | 22 | Daughter | Stenographer | Indiana |
| 57 | James Trinstick | 62 | Head | Stationary Engineer | Indiana |
| 58 | Theda Trinstick | 56 | Wife | — | Denmark |
| 59 | William Clark | 30 | Head | Truck Driver | Indiana |
| 60 | Alberta Clark | 27 | Wife | — | Illinois |
| 61 | George Beebe | 68 | Head | — | Indiana |
| 62 | Laura Beebe | 69 | Wife | — | Indiana |
| 63 | Dale Pratt | 40 | Head | Motor Coach Operator | Illinois |
| 64 | Emma Pratt | 37 | Wife | — | Illinois |
| 66 | John Blixt | 41 | Head | Laborer | Sweden |
| 67 | Agnes Blixt | 42 | Wife | — | Wisconsin |
| 68 | Eric Blixt | 5 | Son | — | Indiana |
| 69 | Mary A. Keegan | 62 | Head | — | Illinois |
| 70 | Thomas Keegan | 27 | Son | Watchman | Indiana |
| 71 | William Hamay | 38 | Head | Machinist | Illinois |
| 72 | Olive Hamay | 35 | Wife | — | Wisconsin |
| 73 | Marla Mae Hamay | 5 | Daughter | — | Illinois |
| 74 | Charles E. Seaman | 63 | Head | Watchman | New York |
| 75 | Sarah M. Seaman | 62 | Wife | — | Wisconsin |
| 76 | Carl Bird | 42 | Head | Proprietor | Wisconsin |
| 77 | Dorothy A. Bird | 38 | Daughter | — | Indiana |
| 78 | Carl Leslie Bird | 15 | Son | — | Indiana |
| 79 | Virgil Ratcliff | 58 | Head | Watchman | Kentucky |
| 80 | Maude Ratcliff | 60 | Wife | — | Kentucky |
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)