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John Schaefer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Ionia, Michigan
Our Model Tree links this John Schaefer across the 1920 and 1930 US Censuses in Ionia, Michigan (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 13-person household.
Age 40
b. ~1890
Male
Head
Born: Michigan
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Ionia, Michigan |
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 23 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Occupation | Packer |
| Industry | Flour mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Packer |
| Township / Ward | Portland Village |
| Est. Birth Year | ~1890 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alden Schaefer | Daughter | — | 10 | ~1920 |
| Charles Rocks | Son | — | 23 | ~1907 |
| Kathleen Schaefer | Daughter | — | 15 | ~1915 |
| Mary Schaefer | Daughter | — | 11 | ~1919 |
| Pauline Schaefer | Spouse | — | 37 | ~1893 |
| Robert Schaefer | Son | — | 5 | ~1925 |
| Marguerite Schaefer | Daughter | — | 8 | ~1922 |
| Robert Rocks | Son | — | 11 | ~1919 |
| Anna Rocks | Other | — | 53 | ~1877 |
| John Schaefer | Head | — | 40 | ~1890 |
| Patricia Rocks | Other | — | 1 | ~1929 |
| Rosemary Schaefer | Daughter | — | 1 | ~1929 |
| Viola Rocks | Other | — | 18 | ~1912 |
Census Appearances
1920
Ionia, Michigan
Head, age 30
Ionia, Michigan · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | Grain elevator |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Ionia, Michigan
Head, age 40
Ionia, Michigan · implied b. ~1890 — 13 household members
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 23 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Packer |
| Industry | Flour mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Schaefer across 2 US Census years (1920 and 1930) in Ionia, Michigan, using XGBoost record linkage.
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This person
Anchor record
John Schaefer
Head · 1930 · age 40 · b. ~1890 · 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 — Ionia, Michigan
Open full size
1930 US Federal Census — Ionia, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel992:1029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arnold A Grose | 26 | Son | Packer | Michigan |
| 2 | Perry Earl | 31 | Head | Farmer | South Dakota |
| 3 | Bertha H Earl | 29 | Wife | Chief Operator | Michigan |
| 4 | Emil J Lalone | 39 | Head | Odd Jobs | Michigan |
| 5 | Beatrice Lalone | 26 | Wife | Upholsterer | Michigan |
| 6 | William J Lalone | 16 | Son | — | Michigan |
| 7 | Ella E Lalone | 13 | Daughter | — | Michigan |
| 8 | Peter E Lalone | 11 | Son | — | Michigan |
| 9 | Ira C Preston | 54 | Head | Decorator | Michigan |
| 10 | Ida L Preston | 50 | Wife | — | Michigan |
| 11 | Boyd D Preston | 21 | Son | Laborer | Michigan |
| 12 | Mabel M Preston | 17 | Daughter-in-law | — | Michigan |
| 13 | Edgar H Preston | 18 | Son | Clerk | Michigan |
| 14 | Ella S Preston | 14 | Daughter | — | Michigan |
| 15 | Ada L Probart | 71 | Mother-in-law | — | Michigan |
| 16 | Henry Pauley | 45 | Head | Odd Jobs | Minnesota |
| 17 | Francis M Pauley | 41 | Wife | — | Minnesota |
| 18 | Norbert J Pauley | 18 | Son | Section Laborer | Minnesota |
| 19 | Rose A Pauley | 13 | Daughter | — | Minnesota |
| 20 | Adeline K Pauley | 10 | Daughter | — | Minnesota |
| 21 | Verena M Pauley | 8 | Daughter | — | Minnesota |
| 22 | Robert J Pauley | 6 | Son | — | Minnesota |
| 23 | Andrew P Pauley | 1 | Son | — | Michigan |
| 24 | Anthony P Martin | 30 | Head | Alexander | Michigan |
| 25 | Pauline Martin | 29 | Wife | — | Michigan |
| 26 | Bernadette R Martin | 2 | Daughter | — | Michigan |
| 27 | Marilyn A Martin | 1 | Daughter | — | Michigan |
| 28 | Albert P Morehouse | 27 | Head | Packer | Michigan |
| 29 | Lucinda E Morehouse | 26 | Wife | — | Michigan |
| 30 | Anna M Morehouse | 3 | Daughter | — | Michigan |
| 31 | Francis J Morehouse | 1 | Son | — | Michigan |
| 32 | John Schaefer THIS PERSON | 40 | Head | Packer | Michigan |
| 33 | Pauline E Schaefer | 37 | Wife | — | Michigan |
| 34 | Kathleen M Schaefer | 15 | Daughter | — | Michigan |
| 35 | Mary A Schaefer | 11 | Daughter | — | Michigan |
| 36 | Alden S Schaefer | 10 | Daughter | — | Michigan |
| 37 | Marguerite J Schaefer | 8 | Daughter | — | Michigan |
| 38 | Robert L Schaefer | 5 | Son | — | Michigan |
| 39 | Rosemary Schaefer | 1 | Daughter | — | Michigan |
| 40 | Anna M Rocks | 53 | H | — | Michigan |
| 41 | Robert E Rocks | 11 | Son | — | Michigan |
| 42 | Charles J Rocks | 23 | Son | Packer | Michigan |
| 43 | Viola A Rocks | 18 | Daughter-in-law | — | Michigan |
| 44 | Patricia A Rocks | 1 | Granddaughter | — | Michigan |
| 45 | John Blundy | 48 | Head | Laborer | Michigan |
| 46 | Elizabeth C Blundy | 48 | Wife | — | Michigan |
| 47 | Bernard J Blundy | 19 | Son | Laborer | Michigan |
| 48 | Norman J Blundy | 15 | Son | — | Michigan |
| 49 | Viola M Blundy | 12 | Daughter | — | Michigan |
| 50 | Dorothy G Blundy | 10 | Daughter | — | 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)