JW
John Wolf — 1940 US Census Record
Model Tree available1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this John Wolf across the 1920, 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Mathias & Emma — first a son (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Wauwatosa City |
| 1935 Residence (County) | Milwaukee |
| Additional Details | |
| Occupation | Steam railroad |
| Industry | PW |
| Hours Worked | 40 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Steam Railroad |
| Township / Ward | Wauwatosa City |
| Est. Birth Year | ~1913 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Leonard Wolf | Head | — | 56 | ~1884 |
| John Wolf | Son | — | 27 | ~1913 |
| Mary Wolf | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Waukesha, Wisconsin
Son, age 6
Waukesha, Wisconsin · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Boarding House |
| Industry | Private |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Milwaukee, Wisconsin
Son, age 17
Milwaukee, Wisconsin · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Milwaukee-County, Wisconsin
Son, age 27
Milwaukee-County, Wisconsin · implied b. ~1913 — 3 household members
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Wauwatosa City |
| 1935 Residence (County) | Milwaukee |
| Occupation | Steam railroad |
| Industry | PW |
| Hours Worked | 40 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Wolf across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Mathias Wolf (~0.92 confidence) and mother Emma Wolf (~0.92 confidence) and father Leonard Wolf (~0.92 confidence) and mother Mary Wolf (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mathias Wolf
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Emma Wolf
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
Leonard Wolf
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Mary Wolf
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Wolf
Son · 1940 · age 27 · b. ~1913 · Wisconsin
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Milwaukee-County, Wisconsin
Open full size
1940 US Federal Census — Milwaukee-County, Wisconsin
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-04502-00867)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nancy Neumann | 6 | Daughter | — | Wisconsin |
| 42 | Jerry Neumann | 4 | Son | — | Wisconsin |
| 43 | Billy Neumann | 1 | Son | — | Wisconsin |
| 45 | Anna M. Kranz | 77 | Head | — | Wisconsin |
| 46 | Hertha E. Kranz | 48 | Daughter | Bookkeeper | Wisconsin |
| 47 | Helen C. Kranz | 47 | Daughter | Manager | Wisconsin |
| 48 | Rudolph Kranz | 36 | Son | Salesman | Wisconsin |
| 50 | Albert Madushaw | 30 | Head | Equipment Operator | Wisconsin |
| 51 | Anna Madushaw | 25 | Wife | — | Michigan |
| 52 | Mary Madushaw | 70 | Mother | — | Germany |
| 53 | James Jos. Madushaw | 1 | Son | — | Wisconsin |
| 54 | Edward Krause | 48 | Head | Laborer | Wisconsin |
| 55 | Alma Krause | 49 | Wife | — | Wisconsin |
| 56 | Roy Krause | 21 | Son | Welder | Wisconsin |
| 57 | Virginia Krause | 12 | Daughter | — | Wisconsin |
| 58 | Ralph Michaels | 26 | Head | Mason Helper | Wisconsin |
| 59 | E. Marie Michaels | 26 | Wife | — | Wisconsin |
| 60 | Geraldine Michaels | 7 | Daughter | — | Wisconsin |
| 61 | Lloyd Michaels | 2 | Son | — | Wisconsin |
| 62 | Ralph Jr. Michaels | 0 | Son | — | Wisconsin |
| 64 | George Kerr | 35 | Head | Trucker | Iowa |
| 65 | Bernice Kerr | 32 | Wife | — | Wisconsin |
| 66 | Emil Pagel | 46 | Head | Electrician | Wisconsin |
| 67 | Minnie Pagel | 47 | Wife | — | Wisconsin |
| 68 | Raymond Pagel | 21 | Son | File Clerk | Wisconsin |
| 69 | Marion Pagel | 15 | Daughter | — | Wisconsin |
| 70 | Lena Henke | 70 | Head | — | Germany |
| 71 | Elizabeth Henke | 50 | Daughter | — | Wisconsin |
| 72 | Max Bartlein | 23 | Head | Mechanic Helper | Wisconsin |
| 73 | Dorothy Bartlein | 21 | Wife | Waitress | Wisconsin |
| 74 | Raymond Lustig | 27 | Head | Attendant | Wisconsin |
| 75 | Bernice Lustig | 22 | Wife | — | Wisconsin |
| 76 | Raymond Lustig | 3 | Son | — | Wisconsin |
| 77 | Leonard Wolf | 56 | Head | Helper | Wisconsin |
| 78 | Mary Wolf | 50 | Wife | — | Wisconsin |
| 79 | John Wolf THIS PERSON | 27 | Son | Steam Railroad | Wisconsin |
| 80 | Augusta Wolf | 80 | Head | — | Germany |
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 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)