HS
Helen Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Helen Sullivan across the 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1899), then head of a 11-person household.
Age 21
b. ~1899
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Operator |
| Township / Ward | Boston City |
| Est. Birth Year | ~1899 |
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 1920 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Sullivan | Daughter | — | 21 | ~1899 |
| Mary Sullivan | Daughter | — | 22 | ~1898 |
| Eleanor Sullivan | Daughter | — | 9 | ~1911 |
| Pauline Sullivan | Daughter | — | 15 | ~1905 |
| Dorothy Sullivan | Daughter | — | 23 | ~1897 |
| Winifred Sullivan | Daughter | — | 19 | ~1901 |
| John Sullivan | Head | — | 54 | ~1866 |
| James Sullivan | Other | — | 40 | ~1880 |
| Joseph Sullivan | Son | — | 7 | ~1913 |
| Warren Sullivan | Son | — | 14 | ~1906 |
| Margaret Sullivan | Spouse | — | 46 | ~1874 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 12
Suffolk, Massachusetts · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Helen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 21
Suffolk, Massachusetts · implied b. ~1899 — 11 household members
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Helen Sullivan across 2 US Census years (1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Sullivan
Daughter · 1920 · age 21 · b. ~1899 · Massachusetts
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Sibling
Pauline Sullivan
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Sullivan
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Sullivan
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Sullivan
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sullivan
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Sullivan
Sibling · 1920 · age 19
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
1920 US Federal Census — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu741unit:0810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Thomas | 10 | Son | — | Massachusetts |
| 2 | Rebecca Thomas | 14 | Daughter | — | Massachusetts |
| 3 | Earl Thomas | 8 | Son | — | Massachusetts |
| 4 | King Francis Thomas | 11 | Boarder | — | Massachusetts |
| 5 | England George Thomas | 25 | Lodger | Machinist | Canada |
| 6 | Annie J Wilde | 54 | Head | Agent | England |
| 7 | Alice E Wilde | 62 | Wife | — | Vermont |
| 8 | William Clifford | 51 | Head | Carpenter | Newfoundland |
| 9 | Annie Clifford | 51 | Wife | — | Newfoundland |
| 10 | Mildred Clifford | 21 | Daughter | — | Massachusetts |
| 11 | Gertrude Clifford | 25 | Daughter | Book Keeper | Massachusetts |
| 12 | Herbert Clifford | 22 | Son | Merchant | Massachusetts |
| 13 | Warren Clifford | 13 | Son | — | Massachusetts |
| 14 | James H Ryan | 71 | Head | Fire Inspector | Massachusetts |
| 15 | Annie Ryan | 40 | Wife | — | Ireland |
| 16 | William W Ryan | 19 | Son | Fireman | Massachusetts |
| 17 | Frank Ryan | 13 | Son | — | Massachusetts |
| 18 | John Ryan | 10 | Son | — | Massachusetts |
| 19 | Robert Ryan | 8 | Son | — | Massachusetts |
| 20 | Ernest Ryan | 4 | Son | — | Massachusetts |
| 21 | Ralph Ryan | 2 | Son | — | Massachusetts |
| 22 | Edith Ryan | 1 | Daughter | — | Massachusetts |
| 23 | John Sullivan | 54 | Head | Butcher | Massachusetts |
| 24 | Margaret Sullivan | 46 | Wife | — | Massachusetts |
| 25 | Dorothy M Sullivan | 23 | Daughter | Folding Clerk | Massachusetts |
| 26 | Mary J Sullivan | 22 | Daughter | Teacher | Massachusetts |
| 27 | Helen Sullivan THIS PERSON | 21 | Daughter | Operator | Massachusetts |
| 28 | Winifred Sullivan | 19 | Daughter | Maker | Massachusetts |
| 29 | Pauline B Sullivan | 15 | Daughter | — | Massachusetts |
| 30 | Warren J Sullivan | 14 | Son | — | Massachusetts |
| 31 | Eleanor Sullivan | 9 | Daughter | — | Massachusetts |
| 32 | Joseph Sullivan | 7 | Son | — | Massachusetts |
| 33 | James W Sullivan | 40 | Brother | Butcher | Massachusetts |
| 34 | Frances E Smith | 65 | Head | Milliner | Massachusetts |
| 35 | Martha F Nichols | 44 | Daughter | Assistant Librarian | Massachusetts |
| 36 | James Callum | 53 | Head | Foreman | Ireland |
| 37 | Catherine Callum | 52 | Wife | — | Ireland |
| 38 | Josephine Callum | 20 | Daughter | Telephone Operator | Massachusetts |
| 39 | Henry Callum | 19 | Son | Supplies Clerk | Massachusetts |
| 40 | Helen Callum | 17 | Daughter | — | Massachusetts |
| 41 | Edward Callum | 14 | Son | — | Massachusetts |
| 42 | Phillip Sheridan | 47 | Head | Chauffeur | Ireland |
| 43 | Catherine Sheridan | 43 | Wife | — | Ireland |
| 44 | Phillip Sheridan | 21 | Son | Chauffeur | Massachusetts |
| 45 | Veronica Sheridan | 19 | Daughter | — | Massachusetts |
| 46 | Alice Sheridan | 16 | Daughter | — | Massachusetts |
| 47 | William H Golden | 37 | Head | Fire Broker | Maine |
| 48 | Richard J Golden | 12 | Son | — | Massachusetts |
| 49 | Justin Golden | 10 | Son | — | Massachusetts |
| 50 | Mary Hill | 22 | Housekeeper | House Keeper | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)