JH
John Hendrickson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bayfield, Wisconsin
Our Model Tree links this John Hendrickson across the 1910, 1920, 1930 and 1940 US Censuses in Bayfield, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 2-person household.
Age 64
b. ~1866
Male
Head
Born: Finland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Bayfield, Wisconsin |
| Surname | Hendrickson |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Occupation | Assistant Helper |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | O |
| Home Value / Rent | Value |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Assistant Helper |
| Township / Ward | Clover Township |
| Est. Birth Year | ~1866 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Hendrickson | Head | — | 64 | ~1866 |
| William Hendrickson | Son | — | 28 | ~1902 |
Census Appearances
1910
Bayfield, Wisconsin
Head, age 44
Bayfield, Wisconsin · implied b. ~1866 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Finland |
| Years Married | 11 |
| Year of Immigration | 1890 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1920
Bayfield, Wisconsin
Head, age 53
Bayfield, Wisconsin · implied b. ~1867 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Bayfield, Wisconsin
Head, age 64
Bayfield, Wisconsin · implied b. ~1866 — 2 household members
| Surname | Hendrickson |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Assistant Helper |
| Industry | Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | O |
| Home Value / Rent | Value |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Bayfield-County, Wisconsin
Other, age 74
Bayfield-County, Wisconsin · implied b. ~1866 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Clover Township |
| 1935 Residence (County) | Bayfield |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Hendrickson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Hendrickson
Head · 1930 · age 64 · b. ~1866 · Wisconsin
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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 — Bayfield, Wisconsin
Open full size
1930 US Federal Census — Bayfield, Wisconsin
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2560unit:0277)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alloysius J. Seidelhafen | 40 | Head | Mechanic | Illinois |
| 2 | Margaret A. Seidelhafen | 37 | Wife-H | — | Illinois |
| 3 | Marguerite A. Seidelhafen | 17 | Daughter | Postmaster | Illinois |
| 4 | James V. Seidelhafen | 10 | Son | — | Wisconsin |
| 5 | Callista C. Seidelhafen | 8 | Daughter | — | Wisconsin |
| 6 | Robert A. Seidelhafen | 6 | Son | — | Wisconsin |
| 7 | Eileen E. Seidelhafen | 2 | Daughter | — | Wisconsin |
| 8 | Jake De Jong | 43 | Head-Boarder | Laborer | Holland |
| 9 | Frank Jebrok | 55 | Head | Farm Laborer | Czechoslovakia |
| 10 | Anna Jebrok | 57 | Wife-H | — | Czechoslovakia |
| 11 | Anthony Jebrok | 25 | Son | Merchant | Illinois |
| 12 | Julius Scherer | 11 | Nephew | — | Illinois |
| 13 | Evelyn Scherer | 7 | Niece | — | Ohio |
| 14 | Arnold Lukermann | 29 | Head | Cheese Maker | Wisconsin |
| 15 | Mabel L. Lukermann | 28 | Wife-H | — | Wisconsin |
| 16 | Darrell Lukermann | 4 | Son | — | Wisconsin |
| 17 | Joyce R. Lukermann | 2 | Daughter | — | Wisconsin |
| 18 | John E. Hendrickson THIS PERSON | 64 | Head | Assistant Helper | Finland |
| 19 | William Hendrickson | 28 | Son | Merchant | Wisconsin |
| 20 | Nils G. Eastman | 61 | Head | Carpenter | Sweden |
| 21 | Kristine L. Eastman | 64 | Wife-H | — | Sweden |
| 22 | Magnus Berglund | 58 | Head | Farmer | Sweden |
| 23 | Ida Berglund | 51 | Wife-H | — | Sweden |
| 24 | Gustaf Riipi | 64 | Head | Farmer | Finland |
| 25 | Sylvester Biale | 49 | Head | Farmer | Italy |
| 26 | Angelina Biale | 55 | Wife-H | — | Italy |
| 27 | John Biale | 16 | Son | — | Connecticut |
| 28 | John Meyer | 45 | Head | Farmer | Lithuania |
| 29 | Mamie A. Meyer | 45 | Wife-H | — | Wisconsin |
| 30 | Charles Cattlin | 16 | Son | — | Minnesota |
| 31 | Captiolia Cattlin | 13 | Daughter | — | Minnesota |
| 32 | Knut Knutson | 67 | Trapper | Laborer | Norway |
| 33 | Henry Hill | 45 | Head | Farming | Finland |
| 34 | Maria S. Hill | 52 | Wife-H | — | Finland |
| 35 | Gerhardt W. Hill | 22 | Son | — | Michigan |
| 36 | Theodore J. Hill | 20 | Son | — | Michigan |
| 37 | Eva M. A. Hill | 18 | Daughter | — | Wisconsin |
| 38 | Elma A. Hill | 17 | Daughter | — | Wisconsin |
| 39 | Adolph F. Grunwald | 35 | Head | Teacher | Wisconsin |
| 40 | Ethel L. Grunwald | 32 | Wife-H | Teacher | Illinois |
| 41 | Ida L. Grunwald | 9 | Daughter | — | Wisconsin |
| 42 | Stanley W. Hoenig | 30 | Head | Teacher | Iowa |
| 43 | August Fisher | 58 | Head | Farmer | Illinois |
| 44 | Edith M. Fisher | 53 | Wife-H | — | Illinois |
| 45 | Paul E. Neiminen | 47 | Head | Farmer | Finland |
| 46 | Nilma Neiminen | 49 | Wife-H | — | Finland |
| 47 | Ewald Neiminen | 27 | Son | Fishing | Michigan |
| 48 | Eleanora E. Neiminen | 17 | Daughter | — | Wisconsin |
| 49 | Ilona N. Neiminen | 9 | Daughter | — | Wisconsin |
| 50 | Peter Nioletti | 41 | Head | Farmer | Italy |
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)