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John Scanlon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Scanlon across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Scanlon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Laborer |
| Industry | C.C.C. Camp |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 132 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mabel Scanlon | Spouse | — | 45 | ~1895 |
| John Scanlon | Son | — | 18 | ~1922 |
| John Scanlon | Head | — | 51 | ~1889 |
| Margaret Scanlon | Daughter | — | 23 | ~1917 |
| Henry Scanlon | Son | — | 6 | ~1934 |
| Joseph Scanlon | Son | — | 4 | ~1936 |
| Raymond Scanlon | Son | — | 13 | ~1927 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 8
Middlesex, Massachusetts · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Scanlon |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 18
Middlesex-County, Massachusetts · implied b. ~1922 — 7 household members
| Surname | Scanlon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Lowell City |
| 1935 Residence (County) | Middlesex |
| Occupation | Laborer |
| Industry | C.C.C. Camp |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 132 |
| Highest Grade | Hs 1 |
| 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 Scanlon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Scanlon
Son · 1940 · age 18 · b. ~1922 · Massachusetts
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Sibling
Henry Scanlon
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Scanlon
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Scanlon
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Scanlon
Sibling · 1940 · age 4
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-t0627-01691-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Kelly | 22 | Son | Clerk | Massachusetts |
| 2 | John Buckley | 27 | Head | Sewing | Massachusetts |
| 3 | Dorothy Buckley | 27 | Wife | Clerk | Massachusetts |
| 4 | John Buckley | 6 | Son | — | Massachusetts |
| 5 | Daniel Buckley | 5 | Son | — | Massachusetts |
| 6 | Gerard Buckley | 3 | Son | — | Massachusetts |
| 7 | Robert Buckley | 2 | Son | — | Massachusetts |
| 8 | Henry Owen | 48 | Head | Proprietor | Lebanon |
| 9 | Jennie Owen | 41 | Wife | — | Lebanon |
| 10 | Joseph Owen | 23 | Son | — | Massachusetts |
| 11 | Edward Owen | 20 | Son | — | Massachusetts |
| 12 | Josephine Owen | 12 | Daughter | — | Massachusetts |
| 13 | Ester Owen | 9 | Daughter | — | Massachusetts |
| 14 | John Sypien | 50 | Head | Laborer | Poland |
| 15 | Rose Sypien | 48 | Wife | — | Poland |
| 16 | Stanley Sypien | 20 | Son | Laborer | Massachusetts |
| 17 | John Scanlon | 51 | Head | Laborer | Massachusetts |
| 18 | Mabel Scanlon | 45 | Wife | — | Massachusetts |
| 19 | Margaret Scanlon | 23 | Daughter | Packer | Massachusetts |
| 20 | John Scanlon THIS PERSON | 18 | Son | Laborer | Massachusetts |
| 21 | Raymond Scanlon | 13 | Son | — | Massachusetts |
| 22 | Henry Scanlon | 6 | Son | — | Massachusetts |
| 23 | Joseph Scanlon | 4 | Son | — | Massachusetts |
| 24 | Frances Aylakas | 60 | Head | Homework | Poland |
| 25 | Joseph Janatowicz | 50 | Head | Packer | Lithuania |
| 26 | George Owen | 57 | Head | — | Lebanon |
| 27 | Mary Owen | 41 | Wife | — | Lebanon |
| 28 | Edward Fernald | 73 | Head | — | New Hampshire |
| 29 | Gertrude Fernald | 78 | Wife | — | Maine |
| 30 | Mary Paulson | 58 | Daughter | — | New Hampshire |
| 31 | Marcus Paulson | 52 | Son-in-law | Barber | Greece |
| 32 | Deebie Guerra | 72 | Head | — | Lebanon |
| 33 | William O'Grady | 22 | Head | Laborer | Massachusetts |
| 34 | Irene O'Grady | 22 | Wife | — | Massachusetts |
| 35 | Maude Champagne | 57 | Mother | Homework | New Hampshire |
| 36 | Joseph Deonaty | 40 | Head | Taxi Driver | Massachusetts |
| 37 | Alice Deonaty | 40 | Wife | Waitress | Massachusetts |
| 38 | Rita Deonaty | 19 | Daughter | — | Massachusetts |
| 39 | Donald Deonaty | 11 | Son | — | Massachusetts |
| 40 | Theresa Deonaty | 10 | Daughter | — | Massachusetts |
Related Census Records
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)