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Isaac Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baraga, Michigan
Our Model Tree links this Isaac Johnson across the 1900, 1910, 1920 and 1930 US Censuses in Baraga, Michigan (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 3-person household.
Age 72
b. ~1858
Male
Head
Born: Finland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baraga, Michigan |
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1897 |
| Age at First Marriage | 22 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Occupation | Laborer |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 800 |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Laborer |
| Township / Ward | Baraga Village |
| Est. Birth Year | ~1858 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Ida Johnson | Daughter | — | 32 | ~1898 |
| Isaac Johnson | Head | — | 72 | ~1858 |
| Marie Johnson | Other | — | 69 | ~1861 |
Census Appearances
1900
Mendocino, California
Head, age 44
Mendocino, California · implied b. ~1856 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Finland |
| Birth Month | Mar |
| Birth Year | 1856 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Tie Maker |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1910
Houghton, Michigan
Head, age 53
Houghton, Michigan · implied b. ~1857 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Finland |
| Years Married | 19 |
| Year of Immigration | 1881 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Industry | Village |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1920
Baraga, Michigan
Head, age 62
Baraga, Michigan · implied b. ~1858 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Labour |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Finland |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | finland |
1930
Baraga, Michigan
Head, age 72
Baraga, Michigan · implied b. ~1858 — 3 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1897 |
| Age at First Marriage | 22 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 800 |
| 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 Isaac Johnson across 4 US Census years (1900, 1910, 1920 and 1930) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Isaac Johnson
Head · 1930 · age 72 · b. ~1858 · Michigan
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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 — Baraga, Michigan
Open full size
1930 US Federal Census — Baraga, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel972:0352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Emma M. Eberhardt | 52 | Mother | — | Michigan |
| 52 | Gustaf A. Anderson | 75 | Head | — | Sweden |
| 53 | Gust W. Anderson | 37 | Son | Laborer | Michigan |
| 54 | Robert Anderson | 28 | Son | Laborer | Michigan |
| 55 | Jerry Bruner | 61 | Head | Laborer | Canada-French |
| 56 | Adeline Bruner | 47 | Wife-H | — | Michigan |
| 57 | Carl Audisage | 39 | Head | Blacksmith | Michigan |
| 58 | Selma M. Audisage | 34 | Wife-H | — | Michigan |
| 59 | Catherine M. Audisage | 11 | Daughter | — | Michigan |
| 60 | Ralph H. Audisage | 9 | Son | — | Michigan |
| 61 | Alex L. Audisage | 8 | Son | — | Michigan |
| 62 | Dorothy M. Audisage | 6 | Daughter | — | Michigan |
| 63 | Esther A. C. Audisage | 4 | Daughter | — | Michigan |
| 64 | Bernard B. Audisage | 2 | Son | — | Michigan |
| 65 | William S. Audisage | 1 | Son | — | Michigan |
| 66 | Ellen M. Hill | 28 | Roomer | School Teacher | Michigan |
| 67 | Margaret Sullivan | 27 | Roomer | School Teacher | Michigan |
| 68 | John D. Anderson | 51 | Head | Truck Driver | Sweden |
| 69 | Evelyn C. Anderson | 48 | Wife-H | — | Michigan |
| 70 | Carl J. Anderson | 18 | Son | — | Michigan |
| 71 | Alice M. Anderson | 16 | Daughter | — | Michigan |
| 72 | Loyal R. Anderson | 12 | Son | — | Michigan |
| 73 | Gladys E. M. Anderson | 10 | Daughter | — | Michigan |
| 74 | Arthur Corriveau | 37 | Head | Blacksmith | Michigan |
| 75 | Rosina Corriveau | 33 | Wife-H | — | Michigan |
| 76 | Dawson J. Corriveau | 9 | Son | — | Michigan |
| 77 | Charles C. Corriveau | 6 | Son | — | Michigan |
| 78 | Frank Mcmahon | 33 | Head | Rail Way Workman | Michigan |
| 79 | Linda Mcmahon | 29 | Wife-H | — | North Dakota |
| 80 | Francis H. Mcmahon | 6 | Son | — | Michigan |
| 81 | Barbara J. Mcmahon | 5 | Daughter | — | Michigan |
| 82 | Kathleen L. Mcmahon | 4 | Daughter | — | Michigan |
| 83 | John A. Mcmahon | 2 | Son | — | Michigan |
| 84 | Matt Purkila | 41 | Head | Laborer | Finland |
| 85 | Aili E. Purkila | 22 | Wife-H | — | Michigan |
| 86 | Adolph Ruge | 60 | Head | Laborer | Canada-French |
| 87 | Ageline Ruge | 46 | Wife-H | — | Michigan |
| 88 | Henry C. Ruge | 17 | Son | — | Michigan |
| 89 | Rosella M. Ruge | 14 | Daughter | — | Michigan |
| 90 | Mary A. Ruge | 11 | Daughter | — | Michigan |
| 91 | Adolph Ruge | 8 | Son | — | Michigan |
| 92 | Robert Francis Ruge | 3 | Nephew | — | Michigan |
| 93 | Gordon Ruge | 2 | Nephew | — | Michigan |
| 94 | Frank La Rue | 48 | Boarder | Laborer | Michigan |
| 95 | Raymond E. Anderson | 20 | Boarder | Laborer | Michigan |
| 96 | Isaac Johnson THIS PERSON | 72 | Head | Laborer | Finland |
| 97 | Marie S. Johnson | 69 | Wife-H | — | Finland |
| 98 | Ida S. Johnson | 32 | Daughter | House Work | Michigan |
| 99 | Randolph A. Sharp | 30 | Head | Laborer | Michigan |
| 100 | Claribel F. Sharp | 25 | Wife-H | — | Michigan |
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)