TK
Thomas Kelley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clark-County, South Dakota
Our Model Tree links this Thomas Kelley across the 1920, 1930 and 1940 US Censuses in Clark-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 5-person household.
Age 54
b. ~1886
Male
Head
Born: South Dakota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, South Dakota |
| Surname | Kelley |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Clark City |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Occupation | Janitor |
| Industry | Court House |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 740 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Occupation | Janitor |
| Township / Ward | Clark City |
| Est. Birth Year | ~1886 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Kelley | Daughter | — | 16 | ~1924 |
| Thomas Kelley | Head | — | 54 | ~1886 |
| James Kelley | Son | — | 19 | ~1921 |
| Patrick Kelley | Son | — | 10 | ~1930 |
| Myrtle Kelley | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Clark, South …
Head, age 34
Clark, South Dakota · implied b. ~1886 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Farm Laborer |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | F |
| Home Free/Mortgaged | M |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
Head, age 45
Clark, South Dakota · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | South Dakota |
| Age at First Marriage | 34 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | Gen. farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Clark-County, South …
Head, age 54
Clark-County, South Dakota · implied b. ~1886 — 5 household members
| Surname | Kelley |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | South Dakota |
| 1935 Residence (City) | Clark City |
| 1935 Residence (County) | Clark |
| Occupation | Janitor |
| Industry | Court House |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 740 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Thomas Kelley
Head · 1940 · age 54 · b. ~1886 · South Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clark-County, South Dakota
Open full size
1940 US Federal Census — Clark-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03851-00486)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Diane Seefeldt | 7 | Daughter | — | South Dakota |
| 42 | Gloria Seefeldt | 5 | Daughter | — | South Dakota |
| 43 | Stanley Seefeldt | 2 | Son | — | South Dakota |
| 44 | Edgar Mackey | 62 | Head | Mason | Indiana |
| 45 | Victoria Mackey | 61 | Wife | — | Holland |
| 46 | Kathleen Nagle | 37 | Head | Teacher | Nebraska |
| 47 | John P. Nagle | 14 | Son | — | Nebraska |
| 48 | Richard Nagle | 12 | Son | — | South Dakota |
| 49 | Robert Nagle | 11 | Son | — | South Dakota |
| 50 | Michael Nagle | 8 | Son | — | Wyoming |
| 51 | James Woodland | 63 | Head | Proprietor | Iowa |
| 52 | Georgia Woodland | 63 | Wife | — | New York |
| 53 | Harley Woodland | 24 | Son | — | South Dakota |
| 54 | Katie Mcdonald | 81 | Head | — | Massachusetts |
| 55 | Winifred Ladenday | 55 | Lodger | Proprietor | Canada |
| 56 | Thomas Kelley THIS PERSON | 54 | Head | Janitor | South Dakota |
| 57 | Myrtle Kelley | 46 | Wife | Seamstress | South Dakota |
| 58 | James Kelley | 19 | Son | — | South Dakota |
| 59 | Marjorie Kelley | 16 | Daughter | — | South Dakota |
| 60 | Patrick Kelley | 10 | Son | — | South Dakota |
| 61 | Earl Larson | 28 | Head | Clerk | South Dakota |
| 62 | Edna Larson | 24 | Wife | — | South Dakota |
| 63 | Richard Larson | 1 | Son | — | South Dakota |
| 64 | Lyle Scouten | 24 | Head | Clerk | South Dakota |
| 65 | Harriet Scouten | 24 | Wife | — | South Dakota |
| 66 | Joan Scouten | 3 | Daughter | — | South Dakota |
| 67 | Evan Jones | 75 | Head | — | Wisconsin |
| 68 | Cora Jones | 74 | Wife | — | Wisconsin |
| 69 | Evelyn Reilly | 27 | Head | Proprietor | South Dakota |
| 70 | Margaret Reilly | 69 | Mother | — | Illinois |
| 71 | Patricia Reilly | 19 | Niece | Saleslady | South Dakota |
| 72 | Earl Olverson | 49 | Head | — | South Dakota |
| 73 | Lillian Olverson | 52 | Wife | Saleslady | South Dakota |
| 74 | Erfus Olverson | 24 | Son | Meat Market | South Dakota |
| 75 | Lenora Lyke | 32 | Lodger | Nya Supervisor | Minnesota |
| 76 | William Cook | 73 | Lodger | — | Michigan |
| 77 | Neva Henkle | 33 | Lodger | Manager | South Dakota |
| 78 | Janet Parrott | 37 | Lodger | Manager | South Dakota |
| 79 | Edna Schraeder | 18 | Lodger | Waitress | South Dakota |
| 80 | Palmer Momi | 22 | Lodger | Waitress | South Dakota |
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)