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John Gustafson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this John Gustafson across the 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 6-person household.
Age 44
b. ~1896
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Gustafson |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | City and County of Denver |
| Additional Details | |
| Occupation | Welder |
| Industry | Iron foundry |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Welder |
| Township / Ward | Denver |
| Est. Birth Year | ~1896 |
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 | — | 17 | ~1923 |
| Rodney Gustafson | Son | — | 1 | ~1939 |
| Clara Gustafson | Spouse | — | 38 | ~1902 |
| Robert Gustafson | Son | — | 6 | ~1934 |
| Eugene Gustafson | Son | — | 14 | ~1926 |
| John Gustafson | Head | — | 44 | ~1896 |
Census Appearances
1930
Denver, Colorado
Head, age 34
Denver, Colorado · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gustafson |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 22 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Welder |
| Industry | Electric |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Head, age 44
Denver-County, Colorado · implied b. ~1896 — 6 household members
| Surname | Gustafson |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver |
| 1935 Residence (County) | City and County of Denver |
| Occupation | Welder |
| Industry | Iron foundry |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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
Head · 1940 · age 44 · b. ~1896 · Colorado
★ 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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00484-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | N Cat. Lewis | 3 | Son | — | Colorado |
| 42 | Donald W Gaudsey | 32 | Head | Manager | Kansas |
| 43 | Esther R Gaudsey | 33 | Wife | — | New Mexico |
| 44 | Joann Gaudsey | 10 | Daughter | — | Colorado |
| 45 | Emery M Rignell | 27 | Head | Draftsman | Colorado |
| 46 | Elizabeth Rignell | 26 | Wife | — | Colorado |
| 47 | Ronald J Rignell | 4 | Son | — | Colorado |
| 48 | Sherry Jette Rignell | 2 | Daughter | — | Colorado |
| 49 | Robert R Haskins | 35 | Head | Salesman | Nebraska |
| 50 | Cecelia B Haskins | 36 | Wife | — | Colorado |
| 51 | Marjorie Haskins | 14 | Daughter | — | Colorado |
| 52 | Roberta Lee Haskins | 7 | Daughter | — | Colorado |
| 53 | Robert Terry Haskins | 3 | Son | — | Colorado |
| 54 | Joseph W Vandergrift | 59 | Head | Salesman | Maryland |
| 55 | Blanche Vandergrift | 50 | Wife | — | Nebraska |
| 56 | Joseph J Raven | 56 | Head | Coach Carpenter | England |
| 57 | Phoebe A Raven | 62 | Wife | — | England |
| 58 | Leonard E Raven | 32 | Son | Engineer | Pennsylvania |
| 59 | John R Gustafson THIS PERSON | 44 | Head | Welder | Colorado |
| 60 | Clara E Gustafson | 38 | Wife | — | Colorado |
| 61 | John R Jr Gustafson | 17 | Son | — | Colorado |
| 62 | Eugene E Gustafson | 14 | Son | — | Colorado |
| 63 | Robert H Gustafson | 6 | Son | — | Colorado |
| 64 | Rodney G Gustafson | 1 | Son | — | Colorado |
| 65 | John A Day | 45 | Head | — | Iowa |
| 66 | Iva M Day | 39 | Wife | Social Worker | Illinois |
| 67 | Lincoln Day | 12 | Son | — | Iowa |
| 68 | Herbert B Heller | 57 | Father-in-law | — | Illinois |
| 69 | Martha W Heller | 57 | Mother-in-law | — | Maine |
| 70 | Frank A Peretti | 44 | Head | — | Colorado |
| 71 | Helen K Peretti | 32 | Wife | — | Colorado |
| 72 | Mary Ellen Peretti | 9 | Daughter | — | Colorado |
| 73 | Andrew J Worley | 76 | Head | — | Oregon |
| 74 | Emily B Worley | 71 | Wife | — | England |
| 75 | Sara S Gaudy | 80 | Head | — | Iowa |
| 76 | Augustus H Merrifield | 54 | Son-in-law | Contractor | Michigan |
| 77 | Marie D Merrifield | 51 | Daughter | Bookkeeper | Iowa |
| 78 | Roberta K Roush | 20 | Daughter | — | Colorado |
| 79 | Betty Charlene Roush | 11 | Daughter | — | Colorado |
| 80 | Carl L Carter | 41 | Head | Welder | Iowa |
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)