JG
John Gustafson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Gustafson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Gustafson |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | truck-driver |
| Industry | trucking co. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 660 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Truck-Driver |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Nellie Gustafson | Spouse | — | 56 | ~1884 |
| John Gustafson | Head | — | 62 | ~1878 |
| John Gustafson | Son | — | 23 | ~1917 |
Census Appearances
1920
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gustafson |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 13
Suffolk, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gustafson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 23
Suffolk-County, Massachusetts · implied b. ~1917 — 3 household members
| Surname | Gustafson |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | truck-driver |
| Industry | trucking co. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 660 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Gustafson (~0.92 confidence) and father John Gustafson (~0.92 confidence) and father John Gustafson (~0.92 confidence) and mother Nellie Gustafson (~0.92 confidence) and mother Nellie Gustafson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Gustafson
b. ~1878
Source father
● Household
· direct · ~0.92
Father
John Gustafson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
John Gustafson
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Nellie Gustafson
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Nellie Gustafson
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Gustafson
Son · 1940 · age 23 · b. ~1917 · Massachusetts
★ 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01667-00530)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen F. Anderson | 25 | Head | Housewife | Massachusetts |
| 42 | Gloria A. Anderson | 6 | Daughter | — | Massachusetts |
| 43 | William J. Anderson | 4 | Son | — | Massachusetts |
| 44 | Mary L. Laiweneek | 23 | Lodger | Singer | Massachusetts |
| 45 | Richard Kelley | 76 | Head | — | Massachusetts |
| 46 | Ellen Kelley | 66 | Wife | — | England |
| 47 | Thomas J. Kelley | 38 | Son | Freight Handler | Massachusetts |
| 48 | James J. Kelley | 35 | Son | Paver | Massachusetts |
| 49 | John L. Kelley | 15 | Son | — | Massachusetts |
| 50 | Timothy Barry | 59 | Head | Foundry Helper | Irish Free State |
| 51 | Margaret Barry | 54 | Wife | — | Irish Free State |
| 52 | Thomas Barry | 24 | Son | New Worker | Irish Free State |
| 53 | Nora Garvey | 33 | Daughter | Laundress | Irish Free State |
| 54 | Mary A. Garvey | 8 | Granddaughter | — | Massachusetts |
| 55 | Joseph E. Jaggy | 30 | Head | Truck Man | Massachusetts |
| 56 | Florence A. Jaggy | 28 | Wife | — | Massachusetts |
| 57 | Dorothy P. Roulston | 9 | Step-daughter | — | Massachusetts |
| 58 | George E. Ashworth | 39 | Head | Painter | Massachusetts |
| 59 | Kathryn V. Ashworth | 36 | Wife | — | Pennsylvania |
| 60 | George E. Jr. Ashworth | 15 | Son | — | Massachusetts |
| 61 | William Ashworth | 14 | Son | — | Massachusetts |
| 62 | Robert J. Ashworth | 13 | Son | — | Massachusetts |
| 63 | Elizabeth V. Ashworth | 11 | Daughter | — | Pennsylvania |
| 64 | Anna B. Ashworth | 76 | Mother | — | Wash. D.C. |
| 65 | Margaret Mills | 50 | Head | — | Massachusetts |
| 66 | Margaret E. Mills | 28 | Daughter | Factory Worker | Massachusetts |
| 67 | Helen F. Mills | 26 | Daughter | Leather Worker | Massachusetts |
| 68 | William R. Mills | 23 | Son | Parts Man | Massachusetts |
| 69 | Lillian D. Mills | 21 | Daughter | — | Massachusetts |
| 70 | John J. Mills | 16 | Son | Messenger | Massachusetts |
| 71 | James R. Mills | 12 | Son | — | Massachusetts |
| 72 | Harold A. Brewster | 41 | Head | — | Massachusetts |
| 73 | Dorothy R. Brewster | 16 | Daughter | Ambulance Driver | Massachusetts |
| 74 | John A. Gustafson | 62 | Head | — | Sweden |
| 75 | Nellie F. Gustafson | 56 | Wife | Housewife | Irish Free State |
| 76 | John J. Gustafson THIS PERSON | 23 | Son | Truck-Driver | Massachusetts |
| 77 | Milton Solias | 55 | Head | — | Albania |
| 78 | Eire Solias | 42 | Wife | — | Greece |
| 79 | Rose Solias | 17 | Daughter | — | Massachusetts |
| 80 | Milton Solias | 8 | Son | — | Massachusetts |
Pedigree Summary
John
Gen 1 · 5 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)