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John Kaufman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alpena-County, Michigan
Our Model Tree links this John Kaufman across the 1920, 1930 and 1940 US Censuses in Alpena-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 5-person household.
Age 63
b. ~1877
Male
Head
Born: Switzerland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alpena-County, Michigan |
| Surname | Kaufman |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Alpena |
| 1935 Residence (County) | Alpena |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Barber |
| Industry | Barber Shop |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 1400 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
| Occupation | Barber |
| Township / Ward | Alpena |
| Est. Birth Year | ~1877 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Kaufman | Head | — | 63 | ~1877 |
| Amelia Kaufman | Spouse | — | 58 | ~1882 |
| Ethel Kaufman | Daughter | — | 32 | ~1908 |
| Amanda Kaufman | Daughter | — | 30 | ~1910 |
| Grace Kaufman | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Alpena, Michigan
Head, age 42
Alpena, Michigan · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | barber |
| Industry | Own shop |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Switzerland |
| Year of Naturalization | 1906 |
| Birthplace (normalized) | switzerland |
1930
Alpena, Michigan
Head, age 52
Alpena, Michigan · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kaufman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Switzerland |
| Age at First Marriage | 25 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Switzerland |
| Occupation | Proprietor |
| Industry | Barber Shop |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
1940
Alpena-County, Michigan
Head, age 63
Alpena-County, Michigan · implied b. ~1877 — 5 household members
| Surname | Kaufman |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Switzerland |
| 1935 Residence (City) | Alpena |
| 1935 Residence (County) | Alpena |
| Naturalization Status | Naturalized |
| Occupation | Barber |
| Industry | Barber Shop |
| Class of Worker | OA |
| Hours Worked | 54 |
| Income (1939) | 1400 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birth Country | Switzerland |
| Birthplace (normalized) | switzerland |
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.
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This person
Anchor record
John Kaufman
Head · 1940 · age 63 · b. ~1877 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Alpena-County, Michigan
Open full size
1940 US Federal Census — Alpena-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01722-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Walker | 45 | Head | Driller | Michigan |
| 42 | Alma Walker | 42 | Wife | — | Michigan |
| 43 | Laurine Walker | 21 | Daughter | Stenographer | Michigan |
| 44 | Ethel Walker | 19 | Daughter | Stenographer | Michigan |
| 45 | Margaret Walker | 16 | Daughter | — | Michigan |
| 46 | Ruth Walker | 15 | Daughter | — | Michigan |
| 47 | William Jr. Walker | 9 | Son | — | Michigan |
| 48 | Edith Geller | 45 | Head | Teacher | Michigan |
| 49 | Dorothy Geller | 28 | Sister | Bookkeeper | Michigan |
| 50 | Minnie Geller | 70 | Mother | — | Germany |
| 51 | John A. Kaufman THIS PERSON | 63 | Head | Barber | Switzerland |
| 52 | Amelia Kaufman | 58 | Wife | — | Canada-E |
| 53 | Ethel Kaufman | 32 | Daughter | Cashier | Michigan |
| 54 | Amanda M. Kaufman | 30 | Daughter | Bookkeeper | Michigan |
| 55 | Grace Kaufman | 27 | Daughter | Stenographer | Michigan |
| 56 | Hans Olsen | 74 | Head | Laborer | Norway |
| 57 | Olive Olsen | 62 | Wife | — | Norway |
| 58 | Lucy Trelfa | 52 | Head | Teacher | Canada-E |
| 59 | Margaret Trelfa | 49 | Sister | Bookkeeper | Canada-E |
| 60 | William Riecks | 87 | Head | — | Germany |
| 61 | Augusta Riecks | 77 | Wife | — | Germany |
| 62 | Elroy C. Boboltz | 36 | Head | Chief Engineer | Michigan |
| 63 | Mae Boboltz | 36 | Wife | Trimmer | Michigan |
| 64 | Elroy Jr. Boboltz | 10 | Son | — | Michigan |
| 65 | Curtis M. Boboltz | 9 | Son | — | Michigan |
| 66 | Ernest Fronty | 41 | Head | Electrician | Michigan |
| 67 | Helen Fronty | 41 | Wife | — | Michigan |
| 68 | Mabel Fronty | 18 | Daughter | Sales Lady | Michigan |
| 69 | Frederick Fronty | 16 | Son | — | Michigan |
| 70 | Phyllis Fronty | 7 | Daughter | — | Michigan |
| 71 | Patricia Fronty | 5 | Daughter | — | Michigan |
| 72 | John Renoir | 68 | Head | — | Germany |
| 73 | Dora Renoir | 66 | Wife | — | Germany |
| 74 | Alfred Renoir | 40 | Son | — | Michigan |
| 75 | Frank Renoir | 34 | Son | Owner | Michigan |
| 76 | Oscar Olsen | 53 | Head | Laborer | Michigan |
| 77 | Edith Olsen | 47 | Wife | — | Michigan |
| 78 | Edward Olsen | 23 | Son | Mechanic | Michigan |
| 79 | Ernest Olsen | 18 | Son | — | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)