AS
Agnes Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Agnes Sullivan across the 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 9-person household.
Age 12
b. ~1908
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Agnes |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1908 |
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 1920 census.
| Name | Relation to head | Relative to Agnes | Age | Birth yr |
|---|---|---|---|---|
| Agnes Sullivan | Daughter | — | 12 | ~1908 |
| John Sullivan | Son | — | 8 | ~1912 |
| Helen Sullivan | Daughter | — | 14 | ~1906 |
| John Sullivan | Head | — | 48 | ~1872 |
| Henry Sullivan | Son | — | 16 | ~1904 |
| Florence Sullivan | Daughter | — | 17 | ~1903 |
| Bridget Sullivan | Spouse | — | 42 | ~1878 |
| Dorothy Sullivan | Daughter | — | 6 | ~1914 |
| Gertrude Sullivan | Daughter | — | 18 | ~1902 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 3
Suffolk, Massachusetts · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Agnes |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 12
Suffolk, Massachusetts · implied b. ~1908 — 9 household members
| Surname | Sullivan |
| Given Name | Agnes |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| 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 Agnes Sullivan across 2 US Census years (1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Agnes Sullivan
Daughter · 1920 · age 12 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Helen Sullivan
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Sullivan
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Sullivan
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Sullivan
Sibling · 1920 · age 18
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
47 people indexed on this census page (ia:1920:14thcensusofpopu741unit:0484)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Sullivan | 48 | Head | Carpenter | Massachusetts |
| 52 | Bridget Sullivan | 42 | Wife | — | Ireland |
| 53 | Gertrude Sullivan | 18 | Daughter | — | Massachusetts |
| 54 | Florence Sullivan | 17 | Daughter | Stenographer | Massachusetts |
| 55 | Henry Sullivan | 16 | Son | Apprentice | Massachusetts |
| 56 | Helen Sullivan | 14 | Daughter | — | Massachusetts |
| 57 | Agnes Sullivan THIS PERSON | 12 | Daughter | — | Massachusetts |
| 58 | John Sullivan | 8 | Son | — | Massachusetts |
| 59 | Dorothy Sullivan | 6 | Daughter | — | Massachusetts |
| 60 | David Sherman | 58 | Head | — | Massachusetts |
| 61 | Catherine Sherman | 57 | Wife | Fireman | Massachusetts |
| 62 | Charles Sherman | 26 | Son | Machinist | Massachusetts |
| 63 | Paul Sherman | 19 | Son | Presser | Massachusetts |
| 64 | Anna M Sherman | 16 | Daughter | — | Massachusetts |
| 65 | Lillian D Sherman | 14 | Daughter | — | Massachusetts |
| 66 | Frank T Sherman | 11 | Son | — | Massachusetts |
| 67 | Theodore J M Sherman | 27 | Son-in-law | Accountant | Massachusetts |
| 68 | Sarah A Sherman | 27 | Daughter | Packer | Massachusetts |
| 69 | Patrick Quigley | 68 | Head | — | Quebec |
| 70 | Mary Jane Quigley | 58 | Wife | House-Keeper | Massachusetts |
| 71 | Thomas C Quigley | 58 | Boarder | — | Quebec |
| 72 | Ellen Jensen | 70 | Boarder | — | Massachusetts |
| 73 | Grant Davis | 25 | Head | Chauffeur | New Hampshire |
| 74 | Emma G Davis | 26 | Wife | — | Nova Scotia |
| 75 | John Davis | 2 | Son | — | New Hampshire |
| 76 | John Phillips | 37 | Boarder | Soldier | Newfoundland |
| 77 | Benjamin Garrett | 49 | Head | Boiler Maker | England |
| 78 | Elizabeth Garrett | 48 | Wife | — | Ireland |
| 79 | Lawrence H Garrett | 20 | Son | Inspector | Massachusetts |
| 80 | Geraldine A Garrett | 18 | Daughter | Assistant | Massachusetts |
| 81 | Harold Garrett | 17 | Son | Salesman | Massachusetts |
| 82 | Alice Garrett | 13 | Daughter | Office Boy | Massachusetts |
| 83 | Esther V Garrett | 10 | Daughter | — | Massachusetts |
| 84 | Laura Cassidy | 70 | Head | — | Massachusetts |
| 85 | Charles G Cassidy | 51 | Son | Janitor | Massachusetts |
| 86 | Ethel E Cassidy | 50 | Daughter | Teacher | Massachusetts |
| 87 | Claire L Cassidy | 47 | Daughter | — | Massachusetts |
| 88 | Edith G Quarton | 45 | Head | — | Massachusetts |
| 89 | Thorndyke Quarton | 23 | Nephew | Mechanical Engineer | Massachusetts |
| 90 | Hannah Daley | 50 | Boarder | House-Keeper | Nova Scotia |
| 91 | Herbert A Wilson | 49 | Head | Civil Engineer | Massachusetts |
| 92 | Jessie S Wilson | 49 | Wife | — | Massachusetts |
| 93 | Charles A Wilson | 38 | Brother | Traveling Salesman | Massachusetts |
| 94 | Frances M Carter | 38 | Boarder | — | Maine |
| 95 | Kate G Trask | 80 | Head | — | Massachusetts |
| 96 | Helen L Trask | 52 | Daughter | Teacher | Massachusetts |
| 97 | Mary Adams | 68 | Boarder | — | Massachusetts |
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)