RH
Robert Harmon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Corson, South Dakota
Our Model Tree links this Robert Harmon across the 1920 and 1930 US Censuses in Corson, South Dakota (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Male
Son
Born: Minnesota
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Corson, South Dakota |
| Surname | Harmon |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Township 18 Rang 19 |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Helen Harmon | Daughter | — | 8 | ~1922 |
| Kenneth Harmon | Son | — | 6 | ~1924 |
| Robert Harmon | Son | — | 13 | ~1917 |
| Aileen Harmon | Daughter | — | 11 | ~1919 |
| Darrel Harmon | Son | — | 16 | ~1914 |
| Ross Harmon | Head | — | 43 | ~1887 |
| Maud Spicer | Other | — | 21 | ~1909 |
| Lucile Harmon | Daughter | — | 18 | ~1912 |
| Hazel Harmon | Spouse | — | 43 | ~1887 |
Census Appearances
1920
Corson, South …
Son, age 3
Corson, South Dakota · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harman |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Corson, South …
Son, age 13
Corson, South Dakota · implied b. ~1917 — 9 household members
| Surname | Harmon |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Robert Harmon across 2 US Census years (1920 and 1930) in Corson, South Dakota, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harmon
Son · 1930 · age 13 · b. ~1917 · South Dakota
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Sibling
Lucile Harmon
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darrel Harmon
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Aileen Harmon
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Harmon
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Harmon
Sibling · 1930 · age 6
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
1930 US Federal Census — Corson, South Dakota
Open full size
1930 US Federal Census — Corson, South Dakota
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2220unit:0940)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Basil L. Boynton | 24 | Head | Laborer | South Dakota |
| 2 | Marie L. Boynton | 20 | Wife | — | Kansas |
| 3 | Mildred A. Boynton | 1 | Daughter | — | South Dakota |
| 4 | Andrew Erbale | 46 | Head | Farmer | Russia |
| 5 | Mary Erbale | 43 | Wife | — | Russia |
| 6 | Elizabeth Erbale | 12 | Daughter | — | North Dakota |
| 7 | Jake Erbale | 9 | Son | — | South Dakota |
| 8 | Pauline Erbale | 5 | Daughter | — | South Dakota |
| 9 | Christine Erbale | 4 | Daughter | — | South Dakota |
| 10 | Caroline Erbale | 1 | Daughter | — | South Dakota |
| 11 | Ross H. Harmon | 43 | Head | Farmer | Minnesota |
| 12 | Hazel G. Harmon | 43 | Wife | — | Minnesota |
| 13 | Lucile M. Harmon | 18 | Daughter | — | Minnesota |
| 14 | Darrel R. Harmon | 16 | Son | — | Minnesota |
| 15 | Robert W. Harmon THIS PERSON | 13 | Son | — | Minnesota |
| 16 | Aileen J. Harmon | 11 | Daughter | — | Minnesota |
| 17 | Helen J. Harmon | 8 | Daughter | — | South Dakota |
| 18 | Kenneth P. Harmon | 6 | Son | — | South Dakota |
| 19 | Maud Spicer | 21 | Boarder | Teacher | South Dakota |
| 20 | John Ley | 40 | Head | Farmer | North Dakota |
| 21 | Lydia Ley | 37 | Wife | — | North Dakota |
| 22 | John Ley | 16 | Son | — | North Dakota |
| 23 | Fred Ley | 16 | Son | — | North Dakota |
| 24 | Henry Ley | 13 | Son | — | North Dakota |
| 25 | Esther Ley | 9 | Daughter | — | North Dakota |
| 26 | Irene Ley | 8 | Daughter | — | North Dakota |
| 27 | Clarence Ley | 6 | Son | — | North Dakota |
| 28 | Inez Ley | 5 | Daughter | — | North Dakota |
| 29 | Floyd Ley | 2 | Son | — | North Dakota |
| 30 | Joseph Diebert | 53 | Head | Farmer | Russia |
| 31 | Lena Diebert | 48 | Wife | — | Russia |
| 32 | Kasper Diebert | 23 | Son | Laborer | South Dakota |
| 33 | Katherine Diebert | 18 | Daughter | — | Canada |
| 34 | Rose Diebert | 16 | Daughter | — | Canada |
| 35 | Anna M. Diebert | 12 | Daughter | — | North Dakota |
| 36 | George J. Diebert | 11 | Son | — | North Dakota |
| 37 | Leo J. Diebert | 10 | Son | — | North Dakota |
| 38 | Caroline M. Diebert | 7 | Daughter | — | North Dakota |
| 39 | Michael Diebert | 5 | Son | — | North Dakota |
| 40 | Magdalene Diebert | 2 | Daughter | — | South Dakota |
| 41 | Katherine Keller | 54 | Sister-in-law | — | Russia |
| 42 | Pete Keller | 23 | Nephew | Laborer | South Dakota |
| 43 | David L. Thomas | 36 | Head | — | Wisconsin |
| 44 | Maude E. Thomas | 33 | Wife | — | Wisconsin |
| 45 | Paul A. Thomas | 14 | Son | — | Wisconsin |
| 46 | Erma M. Thomas | 11 | Daughter | — | Wisconsin |
| 47 | Rosie A. Thomas | 9 | Daughter | — | South Dakota |
| 48 | Joseph P. Thomas | 7 | Son | — | South Dakota |
| 49 | Ruby L. Thomas | 6 | Daughter | — | South Dakota |
| 50 | Doris D. Thomas | 5 | Daughter | — | South Dakota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)