RS
Robert Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Robert Sullivan across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 12-person household.
Age 16
b. ~1924
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Sullivan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Lorraine Sullivan | Daughter | — | 7 | ~1933 |
| Ruth Sullivan | Daughter | — | 13 | ~1927 |
| Helen Sullivan | Daughter | — | 25 | ~1915 |
| Mary Sullivan | Daughter | — | 18 | ~1922 |
| John Sullivan | Head | — | 53 | ~1887 |
| William Sullivan | Son | — | 14 | ~1926 |
| Lawrence Sullivan | Son | — | 27 | ~1913 |
| Thomas Sullivan | Son | — | 20 | ~1920 |
| Edward Sullivan | Son | — | 21 | ~1919 |
| Daniel Sullivan | Son | — | 23 | ~1917 |
| Robert Sullivan | Son | — | 16 | ~1924 |
| Helen Sullivan | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 5
Suffolk, Massachusetts · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 16
Suffolk-County, Massachusetts · implied b. ~1924 — 12 household members
| Surname | Sullivan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H 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 Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Sullivan
Son · 1940 · age 16 · b. ~1924 · Massachusetts
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Sibling
Mary Sullivan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sullivan
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Sullivan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Sullivan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorraine Sullivan
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Sullivan
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Sullivan
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sullivan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Sullivan
Sibling · 1940 · age 21
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-t0627-01676-00018)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis P. Chapman | 24 | Head | Fireman | Massachusetts |
| 2 | Margaret J. Chapman | 30 | Wife | H S | Massachusetts |
| 3 | Franklin P. Chapman | 4 | Son | — | Massachusetts |
| 4 | Virginia A. Chapman | 2 | Daughter | — | Massachusetts |
| 5 | John W. Shonk | 39 | Head | Floor Man | Canada English |
| 6 | Margaret S. Shonk | 47 | Sister | Nurse | Canada English |
| 7 | Annie C. Shonk | 42 | Sister | Housekeeper | Canada English |
| 8 | Harry A. Shonk | 32 | Brother | Battery Shop | Canada English |
| 9 | William R. Shonk | 21 | Brother | — | Massachusetts |
| 10 | H. H. J. Franke | 30 | Head | Janitor | Massachusetts |
| 11 | Edna E. Franke | 31 | Wife | Federal Music | Massachusetts |
| 12 | Barbara Franke | 7 | Daughter | — | Massachusetts |
| 13 | Beverly Franke | 6 | Daughter | — | Massachusetts |
| 14 | Laura E. Lanagan | 70 | Head | H S | Massachusetts |
| 15 | Margaret B. Lanagan | 35 | Daughter | Secretary | Massachusetts |
| 16 | Wm. J. Lanagan | 35 | Son | Chemist | Massachusetts |
| 17 | Lancelot H. Reese | 35 | Head | Chemist | Massachusetts |
| 18 | Priscilla C. Reese | 30 | Wife | H S | Massachusetts |
| 19 | Louise P. Reese | 1 | Daughter | — | Massachusetts |
| 20 | Louise P. Dormer | 10 | Daughter | — | Massachusetts |
| 21 | John D. Tilden | 35 | Head | Bartender | Massachusetts |
| 22 | Josephine B. Tilden | 30 | Wife | H S | Massachusetts |
| 23 | Carroll J. Tilden | 5 | Daughter | — | Massachusetts |
| 24 | John L. Sullivan | 53 | Head | Chauffeur | Massachusetts |
| 25 | Helen M. Sullivan | 50 | Wife | — | Erie Pa. |
| 26 | Lawrence J. Sullivan | 27 | Son | Chauffeur | Massachusetts |
| 27 | Helen R. Sullivan | 25 | Daughter | Bookkeeper | Massachusetts |
| 28 | Daniel P. Sullivan | 23 | Son | — | Massachusetts |
| 29 | Edward L. Sullivan | 21 | Son | Chauffeur | Massachusetts |
| 30 | Thomas W. Sullivan | 20 | Son | — | Massachusetts |
| 31 | Mary V. Sullivan | 18 | Daughter | — | Massachusetts |
| 32 | Robert A. Sullivan THIS PERSON | 16 | Son | — | Massachusetts |
| 33 | William G. Sullivan | 14 | Son | — | Massachusetts |
| 34 | Ruth A. Sullivan | 13 | Daughter | — | Massachusetts |
| 35 | Lorraine Sullivan | 7 | Daughter | — | Massachusetts |
| 36 | Patrick H. Laughlin | 57 | Head | Stock Clerk | Massachusetts |
| 37 | Margaret A. Laughlin | 46 | Sister | H S | Massachusetts |
| 38 | Mary V. Laughlin | 44 | Sister | Private Tel. Oper. | Massachusetts |
| 39 | James J. Holthaus | 21 | Nephew | — | Massachusetts |
| 40 | Mary C. Holthaus | 18 | Neice | — | 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)