DS
Dorothy Sullivan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Dorothy Sullivan across the 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 9-person household.
Age 16
b. ~1914
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Dorothy C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1914 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Francis Sullivan | Son | — | 27 | ~1903 |
| Charles Sullivan | Son | — | 25 | ~1905 |
| Ellen Sullivan | Spouse | — | 60 | ~1870 |
| Anna Sullivan | Daughter | — | 19 | ~1911 |
| Mary Sullivan | Daughter | — | 28 | ~1902 |
| Leo Sullivan | Son | — | 18 | ~1912 |
| Helen Sullivan | Daughter | — | 24 | ~1906 |
| Dorothy Sullivan | Daughter | — | 16 | ~1914 |
| William Sullivan | Head | — | 60 | ~1870 |
Census Appearances
1920
Suffolk, Massachusetts
Daughter, age 5
Suffolk, Massachusetts · implied b. ~1915 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dorothy C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Daughter, age 16
Suffolk, Massachusetts · implied b. ~1914 — 9 household members
| Surname | Sullivan |
| Given Name | Dorothy C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| 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 Dorothy Sullivan across 2 US Census years (1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Dorothy Sullivan
Daughter · 1930 · age 16 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Charles Sullivan
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sullivan
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Sullivan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sullivan
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Sullivan
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Sullivan
Sibling · 1930 · age 27
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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
45 people indexed on this census page (ia:1930:massachusettscensus00reel956:0540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Sullivan | 60 | Head | Trainer-Regular | Massachusetts |
| 2 | Ellen A. Sullivan | 60 | Wife | — | Maine |
| 3 | Mary E. Sullivan | 28 | Daughter | Private Secretary | Massachusetts |
| 4 | Francis A. Sullivan | 27 | Son | Chauffeur | Massachusetts |
| 5 | Charles A. Sullivan | 25 | Son | Insurance Agent | Massachusetts |
| 6 | Helen G. Sullivan | 24 | Daughter | Stenographer | Massachusetts |
| 7 | Anna F. Sullivan | 19 | Daughter | Stenographer | Massachusetts |
| 8 | Leo P. Sullivan | 18 | Son | — | Massachusetts |
| 9 | Dorothy C. Sullivan THIS PERSON | 16 | Daughter | — | Massachusetts |
| 10 | William J. Jr. Sullivan | 29 | Head | Manager | Massachusetts |
| 11 | Agnes Sullivan | 30 | Wife | — | Irish Free State |
| 12 | William J. Sullivan | 2 | Son | — | Massachusetts |
| 13 | Dennis Callahan | 60 | Head | Gardener | Irish Free State |
| 14 | Mary Callahan | 58 | Wife | — | Irish Free State |
| 15 | Daniel Callahan | 57 | Uncle | Gardener | Irish Free State |
| 16 | Thomas Callahan | 20 | Son | Tapper | Massachusetts |
| 17 | Mary Callahan | 18 | Daughter | — | Massachusetts |
| 18 | Samuel Medley | 58 | Head | Salesmaker | England |
| 19 | Florence Medley | 61 | Wife | — | England |
| 20 | Constance Medley | 25 | Daughter | Stenographer | Massachusetts |
| 21 | Florence G. Medley | 21 | Daughter | Stenographer | Massachusetts |
| 22 | Helene J. Gartner | 60 | Head | — | Germany |
| 23 | Otto H. Jahnowsky | 27 | Boarder | Electrician | Germany |
| 24 | George L. Reagle | 43 | Head | Manager | Ohio |
| 25 | Helene L. Reagle | 33 | Wife | — | Massachusetts |
| 26 | Garrett D. Roach | 60 | Head | Undertaker | Massachusetts |
| 27 | M. Estelle Roach | 26 | Daughter | Secretary | Massachusetts |
| 28 | Garrett D. Jr. Roach | 21 | Son | — | Massachusetts |
| 29 | John F. Roach | 17 | Son | — | Massachusetts |
| 30 | Blanche G. Connas | 50 | Boarder | Housekeeper | Massachusetts |
| 31 | Morris Comes | 42 | Head | Baggageman | Canada Eng |
| 32 | Ida M. Comes | 41 | Wife | — | Canada Eng |
| 33 | Marjorie G. Comes | 15 | Daughter | — | Canada Eng |
| 34 | Doris M. Comes | 11 | Daughter | — | Canada Eng |
| 35 | Audrey Comes | 9 | Son | — | Canada Eng |
| 36 | Bernard J. Comes | 6 | Son | — | Canada Eng |
| 37 | Amos B. Travers | 54 | Head | — | Canada Eng |
| 38 | John F. Travers | 32 | Son | Tax Collector | Massachusetts |
| 39 | Catherine Travers | 32 | Wife | — | Massachusetts |
| 40 | Louise B. Travers | 19 | Daughter | Telephone Operator | Massachusetts |
| 41 | Marion V. Travers | 14 | Daughter | — | Massachusetts |
| 42 | Martha H. Travers | 11 | Daughter | — | Massachusetts |
| 43 | Virginia Travers | 7 | Daughter | — | Massachusetts |
| 44 | Kathleen Travers | 5 | Daughter | — | Massachusetts |
| 45 | Patricia Travers | 2 | Daughter | — | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)