JS
John Schaffer — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Ottawa, Michigan
Our Model Tree links this John Schaffer across the 1900, 1910, 1920 and 1930 US Censuses in Ottawa, Michigan (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 4-person household.
Age 60
b. ~1860
Male
Head
Born: Michigan
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Ottawa, Michigan |
| Surname | Schaffer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Farmer |
| Industry | Genl farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Farmer |
| Township / Ward | Chester Township |
| Est. Birth Year | ~1860 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Schaffer | Head | — | 60 | ~1860 |
| Karl Schaffer | Son | — | 22 | ~1898 |
| Elizabeth Schaffer | Spouse | — | 53 | ~1867 |
| Laura Schaffer | Daughter | — | 20 | ~1900 |
Census Appearances
1900
Ottawa, Michigan
Head, age 41
Ottawa, Michigan · implied b. ~1859 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Michigan |
| Birth Month | Feb |
| Birth Year | 1859 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Write | Farmer |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1910
Ottawa, Michigan
Head, age 51
Ottawa, Michigan · implied b. ~1859 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Michigan |
| Years Married | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | Home Farm |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Ottawa, Michigan
Head, age 60
Ottawa, Michigan · implied b. ~1860 — 4 household members
| Surname | Schaffer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | Genl farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Ottawa, Michigan
Head, age 71
Ottawa, Michigan · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaefer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 28 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Retired |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3600 |
| Radio Set | R |
| 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 Schaffer across 4 US Census years (1900, 1910, 1920 and 1930) in Ottawa, Michigan, using XGBoost record linkage.
Show:
This person
Anchor record
John Schaffer
Head · 1920 · age 60 · b. ~1860 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Ottawa, Michigan
Open full size
1920 US Federal Census — Ottawa, Michigan
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu792unit:0210)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gerald A Irish | 9 | son | — | Michigan |
| 2 | Eleanor V Irish | 7 | daughter | — | Michigan |
| 3 | Harvey E Irish | 5 | son | — | Michigan |
| 4 | Ruth E Irish | 3 | daughter | — | Michigan |
| 5 | William Irish | 57 | brother | Farm Laborer | Michigan |
| 6 | Edwin Senaelu | 27 | Head | Farmer | Michigan |
| 7 | Cornelia Senaelu | 25 | wife | — | Michigan |
| 8 | Henry Miller | 57 | Head | Farmer | Michigan |
| 9 | Barbara Miller | 57 | wife | — | Michigan |
| 10 | Christian Miller | 20 | son | Farm Laborer | Michigan |
| 11 | Alvin Miller | 18 | son | Farm Laborer | Michigan |
| 12 | Elmira Miller | 13 | daughter | — | Michigan |
| 13 | Charles F Federer | 40 | Head | Clergyman | Michigan |
| 14 | Ida M Federer | 41 | wife | — | Michigan |
| 15 | Hannah Federer | 12 | daughter | — | Michigan |
| 16 | Walter Federer | 11 | son | — | Michigan |
| 17 | Esther Federer | 8 | daughter | — | Michigan |
| 18 | Paul Federer | 5 | son | — | Michigan |
| 19 | Robert May | 38 | Head | Farmer | Michigan |
| 20 | Herman May | 34 | brother | Farm Laborer | Michigan |
| 21 | Thelania May | 76 | mother | — | Wuerttemberg |
| 22 | Charles J Schaefer | 47 | Head | Farmer | Michigan |
| 23 | Margaret Schaefer | 48 | wife | — | Hessen Ger |
| 24 | Valentine F Schaefer | 24 | son | Carpenter | Michigan |
| 25 | George W Schaefer | 23 | son | Farm Laborer | Michigan |
| 26 | Katherine E Schaefer | 21 | daughter | Domestic | Michigan |
| 27 | Barbara L Schaefer | 20 | daughter | — | Michigan |
| 28 | Robert J Schaefer | 18 | son | Farm Laborer | Michigan |
| 29 | Philip J Schaefer | 16 | son | Farm Laborer | Michigan |
| 30 | Fred K Schaefer | 16 | son | Farm Laborer | Michigan |
| 31 | David T Schaefer | 14 | son | — | Michigan |
| 32 | Nina E R Schaefer | 11 | daughter | — | Michigan |
| 33 | Malvina V Schaefer | 7 | daughter | — | Michigan |
| 34 | Katherine B Schaefer | 77 | mother | — | Wuerttemberg |
| 35 | B H B Wittenberg | 75 | Head | Farmer | Netherlands |
| 36 | Regina Wittenberg | 66 | wife | — | Wuerttemberg |
| 37 | Bernard W Wittenberg | 31 | son | Farm Laborer | Michigan |
| 38 | Rudolph C Wittenberg | 26 | son | Farm Laborer | Michigan |
| 39 | Ernest L Wittenberg | 23 | son | Farm Laborer | Michigan |
| 40 | Margaret C Kraft | 43 | daughter | — | Michigan |
| 41 | Rosa M Kraft | 13 | granddaughter | — | Michigan |
| 42 | John Schaffer THIS PERSON | 60 | Head | Farmer | Michigan |
| 43 | Elizabeth Schaffer | 53 | wife | — | Michigan |
| 44 | Karl Schaffer | 22 | son | Farm Laborer | Michigan |
| 45 | Laura Schaffer | 20 | daughter | — | Michigan |
| 46 | Albert Wittenberg | 33 | Head | Farmer | Michigan |
| 47 | Ida Wittenberg | 26 | wife | — | Michigan |
| 48 | Margaret Kraft | 61 | — | — | Hessen Ger |
| 49 | Fredrick Koster | 56 | Head | Farmer | Michigan |
| 50 | Martha Koster | 45 | wife | — | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)