HS
Helen Sullivan — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Helen Sullivan across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1903), then head of a 11-person household.
Age 7
b. ~1903
Female
Daughter
Born: Massachusetts
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Middlesex, Massachusetts |
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1903 |
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 1910 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Sullivan | Daughter | — | 7 | ~1903 |
| Sarah Sullivan | Daughter | — | 13 | ~1897 |
| Mary Sullivan | Daughter | — | 11 | ~1899 |
| Gertrude Sullivan | Daughter | — | 1 | ~1909 |
| Catherine Sullivan | Daughter | — | 17 | ~1893 |
| Alice Sullivan | Daughter | — | 4 | ~1906 |
| Margaret Sullivan | Daughter | — | 9 | ~1901 |
| Timothy Sullivan | Head | — | 45 | ~1865 |
| Timothy Sullivan | Son | — | 15 | ~1895 |
| John Sullivan | Son | — | 19 | ~1891 |
| Catherine Sullivan | Spouse | — | 42 | ~1868 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age 7
Middlesex, Massachusetts · implied b. ~1903 — 11 household members
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Worcester, Massachusetts
Daughter, age 17
Worcester, Massachusetts · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Helena |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Paper Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Sullivan
Daughter · 1910 · age 7 · b. ~1903 · Massachusetts
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Sibling
Mary Sullivan
Sibling · 1910 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Sullivan
Sibling · 1910 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Sullivan
Sibling · 1910 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Sullivan
Sibling · 1910 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Sullivan
Sibling · 1910 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Sullivan
Sibling · 1910 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1910 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1910 · 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
1910 US Federal Census — Middlesex, Massachusetts
Open full size
1910 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po596unit:0165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fredrick Tweedie | 13 | Son | — | Massachusetts |
| 2 | Margaret Tweedie | 11 | Daughter | — | Massachusetts |
| 3 | John Tweedie | 9 | Son | — | Massachusetts |
| 4 | William Tweedie | 7 | Son | — | Massachusetts |
| 5 | Edward Tweedie | 4 | Son | — | Massachusetts |
| 6 | Edward Reardon | 45 | Head | Box Maker | Ireland |
| 7 | Mary Reardon | 43 | Wife | — | Ireland |
| 8 | Edward Reardon | 19 | Son | Box Maker | Massachusetts |
| 9 | Alice Reardon | 17 | Daughter | — | Massachusetts |
| 10 | John Reardon | 15 | Son | — | Massachusetts |
| 11 | William Reardon | 11 | Son | — | Massachusetts |
| 12 | Francis Reardon | 9 | Son | — | Massachusetts |
| 13 | Timothy Sullivan | 45 | Head | Cooper | Ireland |
| 14 | Catherine Sullivan | 42 | Wife | — | Ireland |
| 15 | John J Sullivan | 19 | Son | Salesman | Massachusetts |
| 16 | Catherine Sullivan | 17 | Daughter | — | Massachusetts |
| 17 | Timothy Sullivan | 15 | Son | Laborer | Massachusetts |
| 18 | Sarah Sullivan | 13 | Daughter | — | Massachusetts |
| 19 | Mary Sullivan | 11 | Daughter | — | Massachusetts |
| 20 | Margaret Sullivan | 9 | Daughter | — | Massachusetts |
| 21 | Helen Sullivan THIS PERSON | 7 | Daughter | — | Massachusetts |
| 22 | Alice Sullivan | 4 | Daughter | — | Massachusetts |
| 23 | Gertrude Sullivan | 1 | Daughter | — | Massachusetts |
| 24 | Daniel Sullivan | 40 | Head | — | New York |
| 25 | Mary Sullivan | 35 | Wife | — | Ireland |
| 26 | James Dunn | 41 | Head | Watchman | Ireland |
| 27 | Annie Dunn | 39 | Wife | — | Ireland |
| 28 | William Dunn | 13 | Son | — | Massachusetts |
| 29 | James Dunn | 12 | Son | — | Massachusetts |
| 30 | John Dunn | 10 | Son | — | Massachusetts |
| 31 | Annie Dunn | 8 | Daughter | — | Massachusetts |
| 32 | Margaret Dunn | 6 | Daughter | — | Massachusetts |
| 33 | Josephine Dunn | 4 | Daughter | — | Massachusetts |
| 34 | Catherine Dunn | 2 | Daughter | — | Massachusetts |
| 35 | Mary Sullivan | 39 | Head | — | Ireland |
| 36 | Margaret Sullivan | 14 | Daughter | — | Massachusetts |
| 37 | Catherine Sullivan | 11 | Daughter | — | Massachusetts |
| 38 | Mary Sullivan | 9 | Daughter | — | Massachusetts |
| 39 | Alice Sullivan | 7 | Daughter | — | Massachusetts |
| 40 | John Lynch | 52 | Head | Blacksmith | Ireland |
| 41 | Mary Lynch | 52 | Wife | — | Ireland |
| 42 | Hannah Lynch | 22 | Daughter | — | Massachusetts |
| 43 | John Lynch | 20 | Son | Core Maker | Massachusetts |
| 44 | Edward Lynch | 12 | Son | — | Massachusetts |
| 45 | William Sullivan | 42 | Head | Driver | Ireland |
| 46 | Bridget Sullivan | 41 | Wife | — | Ireland |
| 47 | John Sullivan | 14 | Son | — | Massachusetts |
| 48 | William Sullivan | 24 | Boarder | Laborer | Ireland |
| 49 | Edward Sullivan | 24 | Boarder | Laborer | Ireland |
| 50 | Frank Lane | 40 | Head | Laborer | Ireland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)