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John Gustafson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boone-County, Illinois
Our Model Tree links this John Gustafson across the 1930 and 1940 US Censuses in Boone-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Illinois |
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Belvidere |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Belvidere City |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| John Gustafson | Son | — | 13 | ~1927 |
| Arvid Gustafson | Head | — | 52 | ~1888 |
| Nancy Gustafson | Spouse | — | 43 | ~1897 |
| Wesley Gustafson | Son | — | 19 | ~1921 |
| Evelyn Gustafson | Daughter | — | 14 | ~1926 |
| Leonard Gustafson | Son | — | 23 | ~1917 |
Census Appearances
1930
Boone, Illinois
Son, age 3
Boone, Illinois · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gustafson |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Boone-County, Illinois
Son, age 13
Boone-County, Illinois · implied b. ~1927 — 6 household members
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Belvidere |
| 1935 Residence (County) | Boone |
| Highest Grade | 7 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 13 · b. ~1927 · Illinois
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Sibling
Leonard Gustafson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wesley Gustafson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Gustafson
Sibling · 1940 · age 14
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 — Boone-County, Illinois
Open full size
1940 US Federal Census — Boone-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00760-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles S. Angell | 58 | Head | Shipping Clerk | Illinois |
| 2 | Ruth Angell | 42 | Wife | — | Iowa |
| 3 | Clarence A. B. Angell | 22 | Son | — | Illinois |
| 4 | Margaret Angell | 18 | Daughter | — | Illinois |
| 5 | Janet Angell | 15 | Daughter | — | Illinois |
| 6 | Stephan Angell | 7 | Son | — | Illinois |
| 7 | Dolly Munn | 38 | Head | — | Illinois |
| 8 | Perry A. Jr. Hregg|Gregg | 23 | Head | Apprentice Tool Maker | Illinois |
| 9 | Virginia Hregg|Gregg | 19 | Wife | — | Illinois |
| 10 | David Hregg|Gregg | 0 | Son | — | Illinois |
| 11 | Edward Jones | 29 | Head | General | Illinois |
| 12 | Dorothy Cleo Jones | 23 | Wife | Operator | Maryland |
| 13 | Edmund Baylander | 37 | Head | Machinist | Illinois |
| 14 | Clara Baylander | 34 | Wife | — | Wisconsin |
| 15 | Ellis Baylander | 1 | Son | — | Illinois |
| 16 | Arvid Gustafson | 52 | Head | Stock Clerk | Illinois |
| 17 | Nancy Gustafson | 43 | Wife | — | Illinois |
| 18 | Leonard Gustafson | 23 | Son | Apprentice Tool Maker | Illinois |
| 19 | Wesley Gustafson | 19 | Son | Receiving Clerk | Washington |
| 20 | Evelyn Gustafson | 14 | Daughter | — | Illinois |
| 21 | John Gustafson THIS PERSON | 13 | Son | — | Illinois |
| 22 | Clifford Burnham | 24 | Head | Machinist | Illinois |
| 23 | Rita Burnham | 24 | Wife | — | Wisconsin |
| 24 | Valerie Burnham | 0 | Daughter | — | Illinois |
| 25 | Arthur Keister | 29 | Brother-in-law | Machinist | Illinois |
| 26 | Hazel Keister | 24 | Sister-in-law | — | Wisconsin |
| 27 | Frank W. Burton | 54 | Head | Janitor | Illinois |
| 28 | Wilda Burton | 48 | Wife | — | Illinois |
| 29 | Doris Burton | 17 | Daughter | — | Illinois |
| 30 | Charles Mack | 37 | Head | Tailor | Poland |
| 31 | Elizabeth Mack | 37 | Wife | — | Illinois |
| 32 | Marilyn Mack | 11 | Daughter | — | Illinois |
| 33 | John A. Thornton | 56 | Head | Common Labor | Wisconsin |
| 34 | John A. Jr. Thornton | 22 | Son | Truck Driver | Illinois |
| 35 | Clarabelle Thornton | 16 | Daughter | — | Illinois |
| 36 | Frances Thornton | 15 | Daughter | — | Illinois |
| 37 | Pearl Thornton | 13 | Daughter | — | Illinois |
| 38 | Charles Lyons | 70 | Head | Laborer | Illinois |
| 39 | Fidelba Lyons | 65 | Wife | — | Illinois |
| 40 | Arthur Ratfield | 47 | Head | Carpenter | Illinois |
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)