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John Swanson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Swanson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Margaret — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Swanson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (city) |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | 82 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | 82 |
| Township / Ward | Malden City |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rita Swanson | Daughter | — | 20 | ~1920 |
| John Swanson | Head | — | 66 | ~1874 |
| John Swanson | Son | — | 29 | ~1911 |
| Margaret Swanson | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swanson |
| Given Name | John O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Dressing carrier |
| Industry | Woolen mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 29
Middlesex-County, Massachusetts · implied b. ~1911 — 4 household members
| Surname | Swanson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (city) |
| 1935 Residence (County) | Middlesex |
| Occupation | 82 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 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 Swanson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Swanson (~0.92 confidence) and mother Margaret Swanson (~0.92 confidence) and father Richard Swanson (~0.92 confidence) and father Nicholas Swanson (~0.92 confidence) and mother Amanda Swanson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Swanson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Margaret Swanson
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Richard Swanson
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Nicholas Swanson
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Amanda Swanson
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Swanson
Son · 1940 · age 29 · b. ~1911 · Massachusetts
★ You are viewing this record
Sibling
Rita Swanson
Sibling · 1940 · age 20
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01608-00031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Susan Garran | 66 | Mother-in-law | — | Canada-Eng |
| 2 | Agnes Garran | 55 | Sister-in-law | — | Massachusetts |
| 3 | Miles Spinney | 33 | Head | Meat Cutter | Massachusetts |
| 4 | E. Hazel Spinney | 32 | Wife | — | Massachusetts |
| 5 | Audrey Spinney | 5 | Daughter | — | Massachusetts |
| 6 | Ralph Ricker | 54 | Lodger | Weaver | Massachusetts |
| 7 | Lysander Noteboom | 52 | Head | Truck Driver | Missouri |
| 8 | Julia Noteboom | 52 | Wife | — | Massachusetts |
| 9 | Pauline Noteboom | 27 | Daughter | Telephone Operator | Massachusetts |
| 10 | Marjorie Noteboom | 21 | Daughter | Office Clerk | Massachusetts |
| 11 | John Swanson | 66 | Head | Steam Fitter | Sweden |
| 12 | Margaret Swanson | 61 | Wife | — | Sweden |
| 13 | John Swanson THIS PERSON | 29 | Son | 82 | Massachusetts |
| 14 | Rita Swanson | 20 | Daughter | — | Massachusetts |
| 15 | — | None | — | — | — |
| 16 | Lillian Croteau | 37 | Head | Private Secretary | Massachusetts |
| 17 | Thomas Croteau | 15 | Son | Barber | Canada-Fr |
| 18 | Nellie Croteau | 65 | Mother | — | Massachusetts |
| 19 | Irene Anstey | 24 | Lodger | Stenographer | Massachusetts |
| 20 | Carl Davis | 40 | Lodger | Chauffeur | Maine |
| 21 | Arthur Mahoney | 61 | Head | Foreman | Massachusetts |
| 22 | Susan Mahoney | 67 | Wife | — | Massachusetts |
| 23 | Mary C. Babcock | 30 | Daughter | — | Massachusetts |
| 24 | Arthur Quinn | 74 | Lodger | — | Massachusetts |
| 25 | Frances Cleary | 68 | Lodger | — | Massachusetts |
| 26 | Merritt F. Newhandy | 32 | Head | Auto Machine Machinist | Illinois |
| 27 | Agnes Newhandy | 40 | Wife | — | Massachusetts |
| 28 | Merritt F. Newhandy | 15 | Son | — | Michigan |
| 29 | Arthur Newhandy | 13 | Son | — | Michigan |
| 30 | Mary A. Newhandy | 7 | Daughter | — | Massachusetts |
| 31 | Robert Dickson | 57 | Head | Foreman | Massachusetts |
| 32 | Louise Dickson | 54 | Wife | — | Wisconsin |
| 33 | Eleanor D. Ridgway | 13 | Granddaughter | — | Massachusetts |
| 34 | Jane Dickson | 77 | Head | — | England |
| 35 | Daniel Sullivan | 62 | Head | Laborer Watchman | Irish Free State |
| 36 | Delia Sullivan | 50 | Wife | — | Irish Free State |
| 37 | Charles Sullivan | 27 | Son | — | Massachusetts |
| 38 | Rita Sullivan | 22 | Daughter | Waitress | Massachusetts |
| 39 | Joseph Sullivan | 22 | Son | Draftsman | Massachusetts |
| 40 | Sarah Catherina | 58 | Head | — | Irish Free State |
Related Census Records
Pedigree Summary
John + 1 sibling
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)