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John Kaufman — 1920 US Census Record
Model Tree available1920 United States Federal Census · Scott, Iowa
Our Model Tree links this John Kaufman across the 1920, 1930 and 1940 US Censuses in Scott, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Freda — first a son (b.~1916), then head of a 3-person household.
Age 4
b. ~1916
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Scott, Iowa |
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Frieda Kaufman | Spouse | — | 28 | ~1892 |
| John Kaufman | Son | — | 4 | ~1916 |
| Frank Kaufman | Head | — | 29 | ~1891 |
Census Appearances
1920
Scott, Iowa
Son, age 4
Scott, Iowa · implied b. ~1916 — 3 household members
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Scott, Iowa
Son, age 14
Scott, Iowa · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaufmann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 24
Scott-County, Iowa · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaufmann |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | salesman |
| Industry | wholesale grocery |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1000 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Kaufman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Kaufmann (~0.92 confidence) and mother Freda Kaufmann (~0.92 confidence) and mother Frieda Kaufman (~0.92 confidence) and mother Hulda Kaufmann (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Kaufmann
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Freda Kaufmann
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Frieda Kaufman
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Hulda Kaufmann
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Kaufman
Son · 1920 · age 4 · b. ~1916 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Scott, Iowa
Open full size
1920 US Federal Census — Scott, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu512unit:0928)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blanche Lindsey | 20 | Wife | None | Iowa |
| 2 | Russell Lindsey | 2 | Son | None | Iowa |
| 3 | Emma Mrs Wulff | 52 | Head | None | Germany |
| 4 | Helen Wulff | 23 | Daughter | Clerk | Iowa |
| 5 | Frank Shuman | 26 | Son-in-law | Mason | Iowa |
| 6 | Frieda Shuman | 26 | Daughter | None | Iowa |
| 7 | Tom P Clausen | 40 | Head | Agent | Maine |
| 8 | Adele Clausen | 42 | Wife | None | Iowa |
| 9 | Tom M Clausen | 12 | Son | None | Minnesota |
| 10 | John B Clausen | 8 | Son | None | Iowa |
| 11 | Mertle Sego | 19 | Roomer | Stenographer | Indiana |
| 12 | Ray E Jackson | 30 | Head | Bookkeeper | Iowa |
| 13 | Edna Jackson | 27 | Wife | None | Iowa |
| 14 | Edward Jackson | 2 | Son | None | Iowa |
| 15 | Edith E Roth | 23 | Sister-in-law | Clerk | Iowa |
| 16 | Florence Roth | 21 | Sister-in-law | Clerk | Iowa |
| 17 | Theodore E Stieckel | 65 | Head | None | Germany |
| 18 | Theresa Stieckel | 64 | Wife | None | Germany |
| 19 | Earl Stieckel | 36 | Son | Carpenter | Iowa |
| 20 | Frank G Kaufman | 29 | Head | Bookkeeper | Iowa |
| 21 | Frieda Kaufman | 28 | Wife | None | Germany |
| 22 | John Kaufman THIS PERSON | 4 | Son | None | Iowa |
| 23 | Marcus Bohardt | 74 | Head | None | Germany |
| 24 | Lysetta Bohardt | 64 | Wife | None | Germany |
| 25 | Margret Koege | 65 | Head | None | Germany |
| 26 | Herbert N Koege | 21 | Son | Cutter | Iowa |
| 27 | Bert A Koege | 25 | Son | Machine Operator | Iowa |
| 28 | Jessie E Wright | 66 | Head | Seamstress | Missouri |
| 29 | Agnes W Wright | 53 | Sister | Seamstress | Tennessee |
| 30 | John A Quigley | 53 | Head | Janitor | Illinois |
| 31 | Mary Quigley | 49 | Wife | None | Illinois |
| 32 | Kathryn Tindall | 16 | Step-daughter | Dressmaker | Kansas |
| 33 | Julia Mrs Alford | 64 | Head | None | Wisconsin |
| 34 | Clarence Alford | 44 | Son | Operator | Iowa |
| 35 | Pearl Heuer | 28 | Boarder | None | Iowa |
| 36 | Fred Rueffel | 63 | Head | Cutter | Germany |
| 37 | Irene Rueffel | 59 | Wife | None | Iowa |
| 38 | Sarah Mrs Mohl | 71 | Head | None | Germany |
| 39 | Anna Mohl | 39 | Daughter | None | Iowa |
| 40 | Catherine Loedel | 65 | Boarder | Housekeeper | Germany |
| 41 | Claus Ohland | 66 | Head | None | Germany |
| 42 | Alfred W Ohland | 25 | Son | Stenographer | Iowa |
| 43 | Mertle V Ohland | 20 | Daughter | Stenographer | Iowa |
| 44 | Mary Mrs Baustian | 78 | Head | None | Germany |
| 45 | Mollie Baustian | 45 | Daughter | None | Iowa |
| 46 | Hattie Baustian | 35 | Daughter | None | Iowa |
| 47 | Elizabeth Jaeger | 76 | Head | None | Germany |
| 48 | John Jaeger | 42 | Son | Solicitor | Iowa |
| 49 | Charles Jaeger | 38 | Son | Salesman | Iowa |
| 50 | Elizabeth Jaeger | 43 | Daughter | Auditor | Iowa |
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)