JL
John Larson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Roberts, South Dakota
Our Model Tree links this John Larson across the 1930 and 1940 US Censuses in Roberts, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 10-person household.
Age 38
b. ~1892
Male
Head
Born: Denmark
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Roberts, South Dakota |
| Surname | Larson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 20 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Goshen Twp Part |
| Est. Birth Year | ~1892 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Larson | Daughter | — | 8 | ~1922 |
| Viola Larson | Daughter | — | 15 | ~1915 |
| John Larson | Head | — | 38 | ~1892 |
| Ernest Vandhof | Other | — | 22 | ~1908 |
| Reuben Larson | Son | — | 7 | ~1923 |
| Elton Larson | Son | — | 9 | ~1921 |
| Merle Larson | Son | — | 1 | ~1929 |
| Kenneth Larson | Son | — | 5 | ~1925 |
| Leonard Larson | Son | — | 14 | ~1916 |
| Marie Larson | Spouse | — | 40 | ~1890 |
Census Appearances
1930
Roberts, South …
Head, age 38
Roberts, South Dakota · implied b. ~1892 — 10 household members
| Surname | Larson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 20 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Home Owned/Rented | R |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
Head, age 48
Roberts-County, South Dakota · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | John C. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Roberts Co Dakota |
| 1935 Residence (County) | Roberts |
| Naturalization Status | Naturalized |
| Occupation | Farm Operator |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | South Dakota |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 John Larson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Larson
Head · 1930 · age 38 · b. ~1892 · South Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Roberts, South Dakota
Open full size
1930 US Federal Census — Roberts, South Dakota
Page Contents
49 people indexed on this census page (ia:1930:15thcensus2230unit:0080)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mildred Christianson | 25 | lodger | Teacher | South Dakota |
| 52 | Frank Pavis | 63 | Head | Farmer | Wisconsin |
| 53 | Emma Pavis | 56 | Wife | — | Minnesota |
| 54 | Leonard Pavis | 27 | Head | Laborer | South Dakota |
| 55 | Sarah Pavis | 23 | Wife | — | South Dakota |
| 56 | Viola Pavis | 4 | Daughter | — | South Dakota |
| 57 | Herman Schulze | 20 | Lodger | Laborer | Germany |
| 58 | Edward A. Johnson | 50 | Head | Farmer | Minnesota |
| 59 | Martha Johnson | 45 | Wife | — | Minnesota |
| 60 | Elmer Johnson | 24 | Son | Laborer | South Dakota |
| 61 | Vernon M. Johnson | 22 | Son | — | South Dakota |
| 62 | Vera M. Johnson | 22 | Daughter | — | South Dakota |
| 63 | Leslie Johnson | 17 | Son | Laborer | South Dakota |
| 64 | John Hanson | 22 | Head | Laborer | South Dakota |
| 65 | John C. Larson THIS PERSON | 38 | Head | Farmer | Denmark |
| 66 | Marie M. Larson | 40 | Wife | — | Denmark |
| 67 | Viola A. Larson | 15 | Daughter | — | South Dakota |
| 68 | Leonard L. Larson | 14 | Son | — | South Dakota |
| 69 | Elton J. Larson | 9 | Son | — | South Dakota |
| 70 | Evelyn M. Larson | 8 | Daughter | — | South Dakota |
| 71 | Reuben R. Larson | 7 | Son | — | South Dakota |
| 72 | Kenneth G. Larson | 5 | Son | — | South Dakota |
| 73 | Merle L. Larson | 1 | Son | — | South Dakota |
| 74 | Ernest Vandhof | 22 | Lodger | Laborer | Montana |
| 75 | David E. Babb | 34 | Head | Farmer | South Dakota |
| 76 | Louise Babb | 20 | Wife | — | Illinois |
| 77 | Dick Van Horn | 35 | Head | Farmer | Germany |
| 78 | Emma Van Horn | 29 | Wife | — | Illinois |
| 79 | Merlin Van Horn | 5 | Son | — | South Dakota |
| 80 | Eugene Van Horn | 4 | Son | — | South Dakota |
| 81 | Arnold A. Teehafer | 34 | Head | Farmer | Wisconsin |
| 82 | Naomi H. Teehafer | 31 | Wife | — | Wisconsin |
| 83 | Wilfred R. Teehafer | 7 | Son | — | South Dakota |
| 84 | Violet E. Teehafer | 3 | Daughter | — | South Dakota |
| 85 | Herman Schultz | 58 | Head | Farmer | Germany |
| 86 | Dora Schultz | 54 | Wife | — | Germany |
| 87 | Harry Schultz | 21 | Son | Laborer | Nebraska |
| 88 | Hilda Schultz | 19 | Daughter | Maid | Nebraska |
| 89 | Elmer Schultz | 17 | Son | Laborer | Nebraska |
| 90 | Emma Schultz | 12 | Daughter | — | Nebraska |
| 91 | William W. Johnson | 42 | Head | Farmer | Iowa |
| 92 | Jennie Johnson | 37 | Wife | — | Nebraska |
| 93 | Lillie Johnson | 11 | Daughter | — | South Dakota |
| 94 | Elsie Johnson | 10 | Daughter | — | South Dakota |
| 95 | Jimmy Miles | 17 | Lodger | Laborer | South Dakota |
| 96 | Byron Davis | 69 | Head | Laborer | Delaware |
| 97 | Isaac L. Davis | 26 | Son | Laborer | South Dakota |
| 98 | Alma M. Davis | 26 | Wife | Maid | Nebraska |
| 99 | Martha Hoerze | 20 | Lodger | Maid | Germany |
Related Census Records
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)