HC
Harry Collins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, South Dakota
Our Model Tree links this Harry Collins across the 1930 and 1940 US Censuses in Clay-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 8-person household.
Age 57
b. ~1883
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, South Dakota |
| Surname | Collins |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Vermillion City |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Occupation | Common Laborer |
| Industry | Sewer Construction |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 412 |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Common Laborer |
| Township / Ward | Vermillion City |
| Est. Birth Year | ~1883 |
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 |
|---|---|---|---|---|
| Gene Collins | Son | — | 11 | ~1929 |
| Harry Collins | Head | — | 57 | ~1883 |
| Dale Collins | Son | — | 18 | ~1922 |
| Margaret Collins | Spouse | — | 47 | ~1893 |
| Larry Collins | Son | — | 3 | ~1937 |
| Beverly Collins | Daughter | — | 9 | ~1931 |
| Dicky Collins | Son | — | 5 | ~1935 |
| Elaine Collins | Daughter | — | 7 | ~1933 |
Census Appearances
1930
Clay, South …
Head, age 47
Clay, South Dakota · implied b. ~1883 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 16 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Mason |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 16 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Clay-County, South …
Head, age 57
Clay-County, South Dakota · implied b. ~1883 — 8 household members
| Surname | Collins |
| Given Name | Harry A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Vermillion City |
| 1935 Residence (County) | Clay |
| Occupation | Common Laborer |
| Industry | Sewer Construction |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 412 |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Collins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harry Collins
Head · 1940 · age 57 · b. ~1883 · 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 — Clay-County, South Dakota
Open full size
1940 US Federal Census — Clay-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03851-01004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wendell Johnke | 20 | Son | — | South Dakota |
| 2 | Maureen Johnke | 17 | Daughter | — | South Dakota |
| 3 | William Elmen | 33 | Head | Teacher | South Dakota |
| 4 | Louise Elmen | 32 | Wife | — | South Dakota |
| 5 | Marilyn Elmen | 4 | Daughter | — | South Dakota |
| 6 | William Jr. Elmen | 3 | Son | — | South Dakota |
| 7 | Bess Stroh | 21 | Servant | Maid | Gettysburg |
| 8 | Mary R. Norman | 85 | Head | — | Wales |
| 9 | Mary Anderson | 64 | Head | — | Denmark |
| 10 | Freda Anderson | 30 | Daughter | Teacher | South Dakota |
| 11 | Severt Myron | 60 | Head | — | South Dakota |
| 12 | Esther Myron | 44 | Wife | — | Minnesota |
| 13 | Vivian Myron | 20 | Daughter | Assistant | Minnesota |
| 14 | Warren Myron | 15 | Son | News Boy | South Dakota |
| 15 | Mary Ann Myron | 7 | Daughter | — | Minnesota |
| 16 | Douglas Myron | 3 | Son | — | Minnesota |
| 17 | Harry A. Collins THIS PERSON | 57 | Head | Common Laborer | Illinois |
| 18 | Margaret Collins | 47 | Wife | Waitress | South Dakota |
| 19 | Dale Collins | 18 | Son | Foreman | South Dakota |
| 20 | Gene Collins | 11 | Son | — | South Dakota |
| 21 | Beverly Collins | 9 | Daughter | — | South Dakota |
| 22 | Elaine Ann Collins | 7 | Daughter | — | South Dakota |
| 23 | Dicky Collins | 5 | Son | — | South Dakota |
| 24 | Larry Collins | 3 | Son | — | South Dakota |
| 25 | Alice Hage | 35 | Head | — | Iowa |
| 26 | Frank J. Hage | 35 | Brother | — | Iowa |
| 27 | Ida D. Miller | 76 | Head | — | New York |
| 28 | George Miller | 55 | Son | Common Laborer | Kansas |
| 29 | Frances Dillon | 64 | Head | — | Iowa |
| 30 | J. William Thompson | 72 | Head | — | Kansas |
| 31 | Kemilla Thompson | 65 | Wife | — | Indiana |
| 32 | Miles Thompson | 30 | Son | Night Watchman | Kansas |
| 33 | Mildred Thompson | 21 | Daughter-in-law | — | Wisconsin |
| 34 | Douglas Thompson | 2 | Grandson | — | South Dakota |
| 35 | Celvin Russell | 68 | Head | Janitor | Iowa |
| 36 | Hannah Russell | 68 | Wife | — | Wisconsin |
| 37 | Lester Russell | 37 | Son | Night Watchman | South Dakota |
| 38 | Elmer Knoll | 50 | Head | Salesman | Nebraska |
| 39 | Lela Knoll | 45 | Wife | — | Nebraska |
| 40 | Chester Knoll | 20 | Son | Helper | South Dakota |
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)