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John Jacobs — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bayfield, Wisconsin
Our Model Tree links this John Jacobs across the 1910, 1920 and 1930 US Censuses in Bayfield, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 4-person household.
Age 69
b. ~1861
Male
Head
Born: Ohio
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Bayfield, Wisconsin |
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland F.S. |
| Mother's Birthplace | Ireland F.S. |
| Additional Details | |
| Occupation | Retired |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Retired |
| Township / Ward | Washburn City |
| Est. Birth Year | ~1861 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Jacobs | Daughter | — | 44 | ~1886 |
| John Jacobs | Head | — | 69 | ~1861 |
| Edward Jacobs | Son | — | 38 | ~1892 |
| Margaret Jacobs | Spouse | — | 67 | ~1863 |
Census Appearances
1910
Bayfield, Wisconsin
Head, age 49
Bayfield, Wisconsin · implied b. ~1861 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 27 |
| Father's Birthplace | Ger Ireland |
| Mother's Birthplace | Ger Ireland |
| Occupation | agent |
| Industry | real estate |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Bayfield, Wisconsin
Head, age 59
Bayfield, Wisconsin · implied b. ~1861 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | John O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Holland |
| Mother's Birthplace | Ireland |
| Occupation | Agent |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Bayfield, Wisconsin
Head, age 69
Bayfield, Wisconsin · implied b. ~1861 — 4 household members
| Surname | Jacobs |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland F.S. |
| Mother's Birthplace | Ireland F.S. |
| Occupation | Retired |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Jacobs across 3 US Census years (1910, 1920 and 1930) in Bayfield, Wisconsin, using XGBoost record linkage.
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This person
Anchor record
John Jacobs
Head · 1930 · age 69 · b. ~1861 · 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:0480)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Effie Palm | 46 | Wife | — | Michigan |
| 52 | Johanna Palm | 75 | Mother | — | Sweden |
| 53 | Robert Fluck | 44 | Head | Lumber | Wisconsin |
| 54 | Martha Fluck | 68 | Mother | — | Wisconsin |
| 55 | Robert Jr. Fluck | 14 | Son | — | Wisconsin |
| 56 | George Fluck | 13 | Son | — | Wisconsin |
| 57 | Howard Fluck | 11 | Son | — | Wisconsin |
| 58 | John A. Jacobs THIS PERSON | 69 | Head | Retired | Ohio |
| 59 | Margaret Jacobs | 67 | Wife | — | Wisconsin |
| 60 | Mary Jacobs | 44 | Daughter | Cashier | Wisconsin |
| 61 | Edward Jacobs | 38 | Son | Asst. Master | Wisconsin |
| 62 | Matilda Langer | 33 | Head | — | Minnesota |
| 63 | Chester Langer | 14 | Son | — | Minnesota |
| 64 | Mary Langer | 12 | Daughter | — | Minnesota |
| 65 | Robert Langer | 3 | Son | — | Minnesota |
| 66 | Iver Finstad | 48 | Head | Electrician | Wisconsin |
| 67 | Lillian Finstad | 42 | Wife | — | Illinois |
| 68 | Ethel Finstad | 17 | Daughter | — | Wisconsin |
| 69 | John Finstad | 14 | Son | — | Wisconsin |
| 70 | Alex Ungrodt | 67 | Head | Merchant | South Africa |
| 71 | Helene Ungrodt | 60 | Wife | — | Missouri |
| 72 | Hugo Ungrodt | 25 | Son | — | Wisconsin |
| 73 | Herbert Ungrodt | 23 | Son | — | Wisconsin |
| 74 | Irene Ungrodt | 21 | Daughter | — | Wisconsin |
| 75 | Stanley Stefinski | 33 | Head | Mechanic | Wisconsin |
| 76 | Lillian Stefinski | 27 | Wife | — | Wisconsin |
| 77 | Dorothy Stefinski | 5 | Daughter | — | Wisconsin |
| 78 | Gladys Stefinski | 4 | Daughter | — | Wisconsin |
| 79 | Robert Stefinski | 1 | Son | — | Wisconsin |
| 80 | Anna Bush | 43 | Head | — | Wisconsin |
| 81 | Lillian Bush | 16 | Daughter | — | Wisconsin |
| 82 | Harry Bush | 12 | Son | — | Wisconsin |
| 83 | Robert Bush | 10 | Son | — | Wisconsin |
| 84 | Donald Bush | 7 | Son | — | Wisconsin |
| 85 | Margaret Bush | 5 | Daughter | — | Wisconsin |
| 86 | Hjalmar Axelberg | 69 | Head | Judge | Norway |
| 87 | Mary Axelberg | 65 | Wife | — | Norway |
| 88 | John Smith | 68 | Head | Superintendent | Wisconsin |
| 89 | Jane Smith | 64 | Wife | — | Wisconsin |
| 90 | Warren Smith | 21 | Son | Laborer | Wisconsin |
| 91 | Grace Brining | 38 | Daughter | Clerk | Wisconsin |
| 92 | Marion Brining | 13 | Granddaughter | — | Wisconsin |
| 93 | Daniel Brining | 11 | Grandson | — | Wisconsin |
| 94 | Jane Brining | 9 | Granddaughter | — | Wisconsin |
| 95 | Grace Brining | 7 | Granddaughter | — | Wisconsin |
| 96 | Leroy Bracken | 32 | Head | Teacher | Maine |
| 97 | Ruth Bracken | 28 | Wife | — | Wisconsin |
| 98 | Grace Bracken | 8 | Daughter | — | Wisconsin |
| 99 | Anna Moody | 18 | Sister | — | Maine |
| 100 | Kate Bracken | 73 | Mother | — | Maine |
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)