RD
Robert Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Robert Dunn across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 12-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Dunn |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1923 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Dunn | Daughter | — | 13 | ~1927 |
| Barbara Dunn | Daughter | — | 9 | ~1931 |
| Matthew Dunn | Head | — | 63 | ~1877 |
| Michael Noonan | Other | — | 57 | ~1883 |
| Nancy Dunn | Other | — | ~1940 | |
| Iris Dunn | Other | — | 24 | ~1916 |
| Paul Dunn | Son | — | 18 | ~1922 |
| John Dunn | Son | — | 22 | ~1918 |
| James Dunn | Son | — | 27 | ~1913 |
| Robert Dunn | Son | — | 17 | ~1923 |
| Matthew Dunn | Son | — | 25 | ~1915 |
| Annie Dunn | Spouse | — | 55 | ~1885 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 12 household members
| Surname | Dunn |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Highest Grade | Hs 2 |
| 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 Robert Dunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Dunn
Son · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Paul Dunn
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dunn
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Dunn
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Dunn
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Dunn
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Dunn
Sibling · 1940 · age 25
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-t0627-01670-00367)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jessie J. Nichollas | 49 | Head | Janitor | Massachusetts |
| 2 | Edith M. Nichollas | 42 | Wife | — | Massachusetts |
| 3 | Jessie J. Jr. Nichollas | 11 | Son | — | New York |
| 4 | Florence Nichollas | 9 | Daughter | — | New York |
| 5 | Elsie Nichollas | 6 | Daughter | — | Massachusetts |
| 6 | Ruth Ann Nichollas | 4 | Daughter | — | Massachusetts |
| 7 | Jean Nichollas | 0 | Daughter | — | Massachusetts |
| 8 | George Parks | 42 | Lodger | Boat Heater | Ohio |
| 9 | Lillian Earley | 66 | Head | — | Massachusetts |
| 10 | John F. Doherty | 31 | Head | Postal Clerk | Massachusetts |
| 11 | Marion Doherty | 27 | Wife | — | Montana |
| 12 | Judith Ellen Doherty | 3 | Daughter | — | Massachusetts |
| 13 | John F. Jr. Doherty | 1 | Son | — | Massachusetts |
| 14 | Carol Doherty | 0 | Daughter | — | Massachusetts |
| 15 | Phillip Schwartz | 39 | Head | Truck Driver | Massachusetts |
| 16 | Laura Schwartz | 35 | Wife | — | Maine |
| 17 | Phyllis Schwartz | 7 | Daughter | — | Massachusetts |
| 18 | Earl Schwartz | 5 | Son | — | Massachusetts |
| 19 | Rosemary Schwartz | 2 | Daughter | — | Massachusetts |
| 20 | Matthew G. Dunn | 63 | Head | Secretary-Treasurer | New Hampshire |
| 21 | Annie M. Dunn | 55 | Wife | — | Canada English |
| 22 | James T. Dunn | 27 | Son | — | Massachusetts |
| 23 | John E. Dunn | 22 | Son | Special Deliverer | Massachusetts |
| 24 | Paul F. Dunn | 18 | Son | — | Massachusetts |
| 25 | Robert L. Dunn THIS PERSON | 17 | Son | — | Massachusetts |
| 26 | Phyllis J. Dunn | 13 | Daughter | — | Massachusetts |
| 27 | Barbara Ann Dunn | 9 | Daughter | — | Massachusetts |
| 28 | Matthew G. Jr. Dunn | 25 | Son | Milk Salesman | Massachusetts |
| 29 | Iris G. Dunn | 24 | Daughter-in-law | — | Massachusetts |
| 30 | Nancy Dunn | 0 | Granddaughter | — | Massachusetts |
| 31 | Michael Noonan | 57 | Brother-in-law | Carpenter | Canada English |
| 32 | Margo A. Pickett | 65 | Head | — | New York |
| 33 | Marie Hogan | 55 | Lodger | Maid | Massachusetts |
| 34 | Lillian Raymond | 55 | Lodger | — | Maine |
| 35 | Nelson Tibbitts | 47 | Head | Freight Brakeman | Massachusetts |
| 36 | Eva Tibbitts | 50 | Wife | — | Massachusetts |
| 37 | Maude Bennett | 43 | Head | — | British West Indies |
| 38 | Marion Bennett | 21 | Daughter | Maid | Massachusetts |
| 39 | David Bennett | 16 | Son | — | Massachusetts |
| 40 | George Bennett | 13 | Son | — | Massachusetts |
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)