JN
John Nolan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Nolan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 11-person household.
Age 21
b. ~1919
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Electric Salesman |
| Industry | Electric Supplies |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Electric Salesman |
| Township / Ward | Everett City |
| Est. Birth Year | ~1919 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Nolan | Daughter | — | 11 | ~1929 |
| Florence Nolan | Daughter | — | 12 | ~1928 |
| Harold Nolan | Head | — | 52 | ~1888 |
| Jemima Brady | Other | — | 78 | ~1862 |
| Paul Nolan | Son | — | 23 | ~1917 |
| Francis Nolan | Son | — | 8 | ~1932 |
| William Nolan | Son | — | 18 | ~1922 |
| Thomas Nolan | Son | — | 27 | ~1913 |
| John Nolan | Son | — | 21 | ~1919 |
| Frederick Nolan | Son | — | 15 | ~1925 |
| Rhoda Nolan | Spouse | — | 48 | ~1892 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 21
Middlesex-County, Massachusetts · implied b. ~1919 — 11 household members
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett City |
| 1935 Residence (County) | Middlesex |
| Occupation | Electric Salesman |
| Industry | Electric Supplies |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | Hs 3 |
| 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 Nolan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Nolan
Son · 1940 · age 21 · b. ~1919 · Massachusetts
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Sibling
Dorothy Nolan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Nolan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Nolan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Nolan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Nolan
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Nolan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Nolan
Sibling · 1940 · age 8
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-t0627-01604-00252)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vincent, Jr. Mulligan | 6 | son | — | Massachusetts |
| 42 | Francis Mulligan | 5 | son | — | Massachusetts |
| 43 | Patricia Mulligan | 3 | daughter | — | Massachusetts |
| 44 | James Doherty | 55 | head | Laborer | Massachusetts |
| 45 | Delia Doherty | 50 | wife | — | Eire |
| 46 | Francis Doherty | 23 | son | Yard Man | Massachusetts |
| 47 | Margaret Doherty | 20 | daughter | Waitress | Massachusetts |
| 48 | Catherine Doherty | 18 | daughter | — | Massachusetts |
| 49 | Florence Doherty | 15 | daughter | — | Massachusetts |
| 50 | Harold Nolan | 52 | head | Agent | Rhode Island |
| 51 | Rhoda Nolan | 48 | wife | — | England |
| 52 | Thomas Nolan | 27 | son | Janitor | Massachusetts |
| 53 | Paul Nolan | 23 | son | — | Massachusetts |
| 54 | John Nolan THIS PERSON | 21 | son | Electric Salesman | Massachusetts |
| 55 | William Nolan | 18 | son | — | Massachusetts |
| 56 | Frederick Nolan | 15 | son | — | Massachusetts |
| 57 | Florence Nolan | 12 | daughter | — | Massachusetts |
| 58 | Dorothy Nolan | 11 | daughter | — | Massachusetts |
| 59 | Francis Nolan | 8 | son | — | Massachusetts |
| 60 | Jemima Brady | 78 | mother in law | — | England |
| 61 | Isaac Plochter | 62 | head | Mechanic | Russia |
| 62 | Jennie Plochter | 49 | wife | — | Russia |
| 63 | Tena Plochter | 23 | daughter | Salesgirl | Massachusetts |
| 64 | Celia Plochter | 18 | daughter | Salesgirl | Massachusetts |
| 65 | Konstanty Rogula | 57 | lodger | Tailor | Russia |
| 66 | Joseph Butt | 36 | head | Driver - Truck | Massachusetts |
| 67 | Florrie Butt | 36 | wife | — | Newfoundland |
| 68 | Doris Butt | 5 | daughter | — | Massachusetts |
| 69 | Samuel Munroe | 57 | head | Wharf-Man | Nova Scotia |
| 70 | Iva Munroe | 54 | wife | — | Nova Scotia |
| 71 | Leslie Munroe | 25 | son | Assistant Auditor | Massachusetts |
| 72 | Osmon Larkin | 61 | head | Salesman | Canada-English |
| 73 | Annie Larkin | 48 | wife | — | Canada-English |
| 74 | Annie Larkin | 74 | mother | — | Canada-English |
| 75 | Charles A. Curran | 45 | head | Salesman | Massachusetts |
| 76 | Evelyn Curran | 38 | wife | — | Massachusetts |
| 77 | Charles, Jr. Curran | 18 | son | — | Massachusetts |
| 78 | Herbert E. Mader | 43 | head | Foreman | Nova Scotia |
| 79 | Madeline M. Mader | 42 | wife | — | Massachusetts |
| 80 | Herbert E., Jr. Mader | 17 | son | — | 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)