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Helen Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Helen Dunn across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Dunn |
| Given Name | Helen K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1920 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Lillian Dunn | Daughter | — | 37 | ~1903 |
| Vincent Dunn | Son | — | 17 | ~1923 |
| Helen Dunn | Daughter | — | 20 | ~1920 |
| Francis Dunn | Son | — | 14 | ~1926 |
| John Dunn | Head | — | 67 | ~1873 |
| Catherine Dunn | Daughter | — | 25 | ~1915 |
| John Dunn | Son | — | 31 | ~1909 |
| Claire Dunn | Daughter | — | 27 | ~1913 |
| Mary Dunn | Spouse | — | 59 | ~1881 |
| Margaret Dunn | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 10
Suffolk, Massachusetts · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 20
Suffolk-County, Massachusetts · implied b. ~1920 — 10 household members
| Surname | Dunn |
| Given Name | Helen K. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Highest Grade | C-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 Helen Dunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Dunn
Daughter · 1940 · age 20 · b. ~1920 · Massachusetts
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Sibling
Francis Dunn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Dunn
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Dunn
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Dunn
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Dunn
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dunn
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dunn
Sibling · 1940 · age 31
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 — 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-t0627-01682-00733)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marion R Boyle | 44 | Wife | — | Maine |
| 2 | Mary B Boyle | 20 | Daughter | — | Maine |
| 3 | William Boyle | 19 | Daughter | — | Massachusetts |
| 4 | John S. Dunn | 67 | Head | Watchman | Massachusetts |
| 5 | Mary A. Dunn | 59 | Wife | — | Eire |
| 6 | Lillian D. Dunn | 37 | Daughter | Office Clerk | Massachusetts |
| 7 | John J. Dunn | 31 | Son | Lawyer | Massachusetts |
| 8 | Claire Dunn | 27 | Daughter | Office Work | Massachusetts |
| 9 | Catherine H. Dunn | 25 | Daughter | Stenographer | Massachusetts |
| 10 | Margaret A. Dunn | 23 | Daughter | Typist | Massachusetts |
| 11 | Helen K. Dunn THIS PERSON | 20 | Daughter | — | Massachusetts |
| 12 | Vincent T. Dunn | 17 | Son | — | Massachusetts |
| 13 | Francis Dunn | 14 | Son | — | Massachusetts |
| 14 | Charles Glover | 32 | Head | Draftsman | Massachusetts |
| 15 | Florence Glover | 28 | Wife | — | Maine |
| 16 | Marietta Glover | 5 | Daughter | — | Maine |
| 17 | Francis B Mahoney | 37 | Head | Operator | Massachusetts |
| 18 | Margaret Mahoney | 26 | Wife | — | Massachusetts |
| 19 | Francis Mahoney | 1 | Son | — | Massachusetts |
| 20 | Mary E. Wall | 39 | Sister | — | Massachusetts |
| 21 | Raymond Wall | 14 | Nephew | — | Massachusetts |
| 22 | James L. Mahoney | 34 | Sister | Operator | Massachusetts |
| 23 | Eleanor Mahoney | 31 | Sister | Clerk | Massachusetts |
| 24 | Hoogas Berberian | 47 | Head | Proprietor | Armenia |
| 25 | Arthur Berberian | 35 | Brother | Checker | Armenia |
| 26 | Harry Berberian | 33 | Brother | Salesman | Armenia |
| 27 | James Berberian | 30 | Brother | Blocker | Armenia |
| 28 | Marie Berberian | 24 | Sister | — | Armenia |
| 29 | Isabell Berberian | 28 | Sister in Law | — | Massachusetts |
| 30 | Diana Berberian | 3 | Niece | — | Massachusetts |
| 31 | George L. Mcmanus | 43 | Head | Calendar Oper. | Massachusetts |
| 32 | Mildred Mcmanus | 38 | Wife | — | Massachusetts |
| 33 | George L. Mcmanus | 12 | Son | — | Massachusetts |
| 34 | Mildred S. Mcmanus | 7 | Daughter | — | Massachusetts |
| 35 | Mary Williams | 73 | Mother in Law | — | Massachusetts |
| 36 | John Etmekjian | 53 | Head | Butcher | Turkey |
| 37 | Araxi Etmekjian | 47 | Wife | 70 | Turkey |
| 38 | James Etmekjian | 24 | Son | Teacher | Turkey |
| 39 | Veronica Mouradian | 47 | Head | — | Turkey |
| 40 | John Mouradian | 31 | Son | Teacher | 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)