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John Shaffer — 1920 US Census Record
Model Tree available1920 United States Federal Census · Butler, Ohio
Our Model Tree links this John Shaffer across the 1920, 1930 and 1940 US Censuses in Butler, Ohio (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1912), then head of a 3-person household.
Age 8
b. ~1912
Male
Son
Born: Ohio
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Butler, Ohio |
| Surname | Shaffer |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Hamilton City |
| Est. Birth Year | ~1912 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Shaffer | Son | — | 8 | ~1912 |
| John Shaffer | Head | — | 55 | ~1865 |
| Birdie Shaffer | Spouse | — | 40 | ~1880 |
Census Appearances
1920
Butler, Ohio
Son, age 8
Butler, Ohio · implied b. ~1912 — 3 household members
| Surname | Shaffer |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Butler, Ohio
Son, age 18
Butler, Ohio · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shafer |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Butler-County, Ohio
Son, age 28
Butler-County, Ohio · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shafer |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Hamilton |
| 1935 Residence (County) | Butler |
| Occupation | Salesman |
| Industry | Farm Equip. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 600 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| 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 Shaffer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Shafer (~0.92 confidence) and father John Shaffer (~0.92 confidence) and mother Birdie Shafer (~0.92 confidence) and mother Birdie Shaffer (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Shafer
b. ~1865
Source father
● Household
· direct · ~0.92
Father
John Shaffer
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Birdie Shafer
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Birdie Shaffer
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Shaffer
Son · 1920 · age 8 · b. ~1912 · Ohio
★ 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 — Butler, Ohio
Open full size
1920 US Federal Census — Butler, Ohio
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1351unit:0666)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Pearl Gebhart | 39 | wife | — | Ohio |
| 52 | Quincy A. Davis | 46 | head | — | Ohio |
| 53 | Nella B. Davis | 42 | wife | Accountant | Ohio |
| 54 | Felix B. Warwick | 72 | father-in-law | None | Ohio |
| 55 | Albert Vail | 66 | head | None | Ohio |
| 56 | Mary Elizabeth Vail | 52 | wife | None | Ohio |
| 57 | L. P. Colawson | 70 | head | None | Ohio |
| 58 | Rosa Colawson | 71 | wife | None | Ohio |
| 59 | Edith Colawson | 41 | daughter | None | Ohio |
| 60 | Elizabeth Hughes | 61 | servant | None | Ohio |
| 61 | Ura Polock | 55 | head | Servant | Ireland |
| 62 | Carrie Polock | 28 | daughter | None | Ohio |
| 63 | George Bachman | 52 | head | Agent | Germany |
| 64 | Elizabeth Bachman | 51 | wife | None | Germany |
| 65 | John F. Neilan | 38 | head | Attorney | Ireland |
| 66 | Marie W. Neilan | 36 | wife | None | Ohio |
| 67 | Kathleen Neilan | 11 | daughter | None | Ohio |
| 68 | Henrietta Hurm | 60 | head | None | Ohio |
| 69 | Naomi C. Hurm | 29 | daughter | None | Ohio |
| 70 | Edna A. Hurm | 23 | daughter | None | Ohio |
| 71 | Ida B. Huster | 65 | head | Teacher | Ohio |
| 72 | Charles L. Huster | 64 | brother | Merchant | Ohio |
| 73 | William C. Huster | 59 | brother | None | Ohio |
| 74 | Ruth Huster | 29 | niece | Clerk | Ohio |
| 75 | John Shaffer | 55 | head | Merchant | Ohio |
| 76 | Birdie Shaffer | 40 | wife | None | Ohio |
| 77 | John Jr. Shaffer THIS PERSON | 8 | son | None | Ohio |
| 78 | F. B. Yingling | 46 | head | Sec. & Treas. | Ohio |
| 79 | Elizabeth Yingling | 46 | wife | None | Ohio |
| 80 | Marie Sholls | 27 | servant | Servant | Ohio |
| 81 | Geo. R. Shields | 38 | head | Production Mgr | Ohio |
| 82 | Sylvia Shields | 35 | wife | None | Ohio |
| 83 | George R. Jr. Shields | 3 | son | None | Michigan |
| 84 | Donald Mcdaniel | 34 | head | Production Mgr | Ohio |
| 85 | Bonnie Mcdaniel | 33 | wife | None | Indiana |
| 86 | Jean Mcdaniel | 6 | daughter | None | Indiana |
| 87 | Betty J. Mcdaniel | 3 | daughter | None | Indiana |
| 88 | Hattie Hodges | 16 | servant | Servant | Ohio |
| 89 | C. M. Lyle | 43 | head | Rec. Clerk | Ohio |
| 90 | May Lyle | 41 | wife | None | Ohio |
| 91 | James Kenneth Hoger | 19 | adopted son | None | Tennessee |
| 92 | Byron A. Hoger | 15 | adopted son | None | Tennessee |
| 93 | Mary A. Lyle | 71 | mother | None | Ohio |
| 94 | John D. Thomas | 58 | head | Barber | Virginia |
| 95 | Alma Thomas | 40 | wife | None | Ohio |
| 96 | Russell Thomas | 20 | son | Clerk | Ohio |
| 97 | Ruth Thomas | 12 | daughter | None | Ohio |
| 98 | Pluma Lewis | 19 | boarder | None | Ohio |
| 99 | Frank Smith | 36 | head | Mechanic | Ohio |
| 100 | Emma M. Smith | 36 | wife | None | Ohio |
Pedigree Summary
John
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)