JG
John Gustafson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Milwaukee-County, Wisconsin
Our Model Tree links this John Gustafson across the 1930 and 1940 US Censuses in Milwaukee-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Milwaukee-County, Wisconsin |
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | West Allis |
| 1935 Residence (County) | Milwaukee |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | West Allis |
| Est. Birth Year | ~1923 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Vivian Gustafson | Daughter | — | 23 | ~1917 |
| John Gustafson | Son | — | 17 | ~1923 |
| Mary Gustafson | Spouse | — | 49 | ~1891 |
| William Gustafson | Son | — | 19 | ~1921 |
| Walter Gustafson | Son | — | 21 | ~1919 |
| Joel Gustafson | Head | — | 45 | ~1895 |
Census Appearances
1930
Milwaukee, Wisconsin
Son, age 7
Milwaukee, Wisconsin · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Milwaukee-County, Wisconsin
Son, age 17
Milwaukee-County, Wisconsin · implied b. ~1923 — 6 household members
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | West Allis |
| 1935 Residence (County) | Milwaukee |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 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 Gustafson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Gustafson
Son · 1940 · age 17 · b. ~1923 · Wisconsin
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Sibling
William Gustafson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Gustafson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vivian Gustafson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
38 people indexed on this census page (nara:1940:m-t0627-04503-00779)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Selma Flohr | 42 | Wife | — | Wisconsin |
| 2 | Alfred Flohr | 15 | Son | — | Wisconsin |
| 3 | Stanley Ignasiak | 40 | Head | Foreman | Wisconsin |
| 4 | Catherine Ignasiak | 41 | Wife | — | Illinois |
| 5 | Stanley Ignasiak | 38 | Lodger | Welder | Wisconsin |
| 6 | Julius Ros | 37 | Lodger | Sheet Metal Worker | Illinois |
| 7 | Edna Ros | 32 | Lodger | — | Wisconsin |
| 9 | Walter Taska | 40 | Head | Superintendent | Wisconsin |
| 10 | Irma Taska | 35 | Wife | — | Wisconsin |
| 11 | Earl Holcomb | 37 | Head | Machinist | Wisconsin |
| 12 | Helen Holcomb | 36 | Wife | — | Illinois |
| 13 | Virginia Holcomb | 13 | Daughter | — | Wisconsin |
| 14 | Emil Kovulaske | 61 | Head | Blacksmith | Germany |
| 15 | Dorothy Kovulaske | 50 | Wife | — | Wisconsin |
| 16 | Charles Kovulaske | 19 | Son | New Worker | Wisconsin |
| 17 | Frances Kovulaske | 18 | Daughter | — | Wisconsin |
| 18 | Ruth Kovulaske | 15 | Daughter | — | Wisconsin |
| 19 | Elaine Kovulaske | 12 | Daughter | — | Wisconsin |
| 21 | Ray Westedt | 30 | Head | Inspector | Wisconsin |
| 22 | Agnes Westedt | 33 | Wife | — | Wisconsin |
| 23 | Corinne Westedt | 2 | Daughter | — | Wisconsin |
| 24 | Orville Bohling | 22 | Head | Machinist | Wisconsin |
| 25 | Agnes Bohling | 19 | Wife | — | Wisconsin |
| 26 | James Bohling | 1 | Son | — | Wisconsin |
| 27 | A. M. Kuchen | 57 | Head | Superintendent | Germany |
| 28 | Emilie A. Kuchen | 50 | Wife | — | Wisconsin |
| 29 | Henry A. Jorgensen | 39 | Head | Salesman | Michigan |
| 30 | Nina Jorgensen | 38 | Wife | — | Wisconsin |
| 31 | Margery Jorgensen | 8 | Daughter | — | Wisconsin |
| 32 | Joel Gustafson | 45 | Head | Carpenter | Sweden |
| 33 | Mary Gustafson | 49 | Wife | — | Sweden |
| 34 | Vivian Gustafson | 23 | Daughter | Sales Lady | Wisconsin |
| 35 | Walter Gustafson | 21 | Son | Laborer | Wisconsin |
| 36 | William Gustafson | 19 | Son | Apprentice | Wisconsin |
| 37 | John Gustafson THIS PERSON | 17 | Son | — | Wisconsin |
| 38 | Henry Engelbert | 33 | Head | Maintenance Man | Wisconsin |
| 39 | Mary Engelbert | 29 | Wife | — | Minnesota |
| 40 | Beverly Engelbert | 8 | Daughter | — | Wisconsin |
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)