HS
Helen Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Helen Sullivan across the 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 14-person household.
Age 12
b. ~1908
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Connecticut |
| Additional Details | |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Year of Naturalization | yes |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| 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.
14 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Margaret Sullivan | Daughter | — | 15 | ~1905 |
| Helen Sullivan | Daughter | — | 12 | ~1908 |
| Mary Byrne | Daughter | — | 6 | ~1914 |
| William Byrne | Head | — | 34 | ~1886 |
| Helen Ames | Other | — | 41 | ~1879 |
| Daniel Sullivan | Other | — | 50 | ~1870 |
| John Ames | Other | — | 41 | ~1879 |
| Cornelius Sullivan | Son | — | 18 | ~1902 |
| Eugene Byrne | Son | — | 1 | ~1919 |
| Patrick Sullivan | Son | — | 14 | ~1906 |
| William Byrne | Son | — | 11 | ~1909 |
| Joseph Byrne | Son | — | 9 | ~1911 |
| Eugene Sullivan | Son | — | 21 | ~1899 |
| Mary Byrne | Spouse | — | 29 | ~1891 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 1
Philadelphia, Pennsylvania · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Daughter, age 12
Philadelphia, Pennsylvania · implied b. ~1908 — 14 household members
| Surname | Sullivan |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Connecticut |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Year of Naturalization | yes |
| Birthplace (normalized) | pennsylvania |
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 Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Sullivan
Daughter · 1920 · age 12 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Patrick Sullivan
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Byrne
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Byrne
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Byrne
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Sullivan
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cornelius Sullivan
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Byrne
Sibling · 1920 · age 9
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 — Philadelphia, Pennsylvania
Open full size
1920 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1647unit:0046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William F Pruitt | 53 | Head | Bookkeeper | Pennsylvania |
| 52 | Margaret Pruitt | 51 | Wife | — | Pennsylvania |
| 53 | William J Jr Pruitt | 20 | Son | Clerk | Pennsylvania |
| 54 | Mary E Pruitt | 22 | Daughter | — | Pennsylvania |
| 55 | William Pruitt | 27 | Son-in-law | Salesman | Pennsylvania |
| 56 | Mary Pruitt | 1 | Granddaughter | — | Pennsylvania |
| 57 | Harry Pruitt | 12 | Nephew | — | Pennsylvania |
| 58 | Anna Maitland | 56 | — | — | Ireland |
| 59 | Rose Maitland | 25 | Daughter | Saleslady | Pennsylvania |
| 60 | Thomas H Maitland | 19 | Son | Blacksmith | Pennsylvania |
| 61 | Joseph G Maitland | 17 | Son | Apprentice | Pennsylvania |
| 62 | John J Maitland | 15 | Son | — | Pennsylvania |
| 63 | Norah Halpin | 22 | Daughter | None | Pennsylvania |
| 64 | James T Halpin | 25 | Son-in-law | None | Pennsylvania |
| 65 | Leo Halpin | 1 | Grandson | None | Pennsylvania |
| 66 | John H Gallagher | 50 | Head | Clerk | Pennsylvania |
| 67 | Charlotte Gallagher | 52 | Wife | None | Pennsylvania |
| 68 | James J Murphy | 27 | Son-in-law | Officer | Pennsylvania |
| 69 | Marcella Murphy | 22 | Daughter | None | Pennsylvania |
| 70 | Lillian Murphy | 27 | Daughter | Cashier | Pennsylvania |
| 71 | William Murphy | 7 | Grandson | None | Pennsylvania |
| 72 | John Murphy | 4 | Grandson | None | Pennsylvania |
| 73 | Thomas Murphy | 1 | Grandson | None | Pennsylvania |
| 74 | Thomas B Harvey | 35 | Head | Salesman | England |
| 75 | Mary Harvey | 35 | Wife | None | Pennsylvania |
| 76 | Thomas Harvey | 12 | Son | None | Pennsylvania |
| 77 | Florence Harvey | 10 | Daughter | None | Pennsylvania |
| 78 | James H Lutley | 57 | Head | Laborer | Pennsylvania |
| 79 | Pauline C Lutley | 55 | Wife | None | Ireland |
| 80 | Ruth Lutley | 33 | Daughter | Operator | Pennsylvania |
| 81 | Catherine O'Brien | 62 | Head | None | Scotland |
| 82 | Helen O'Brien | 22 | Daughter | Floor Lady | Pennsylvania |
| 83 | Gertrude O'Brien | 25 | Daughter | Inspector | Pennsylvania |
| 84 | John V O'Brien | 16 | Son | None | Pennsylvania |
| 85 | John T Jones | 55 | Head | Waiter | Pennsylvania |
| 86 | Eliza Murdock | 50 | Head | Manager | Ireland |
| 87 | William J Byrne | 34 | Head | Plumber | Pennsylvania |
| 88 | Mary Byrne | 29 | Wife | None | Pennsylvania |
| 89 | William Byrne | 11 | Son | None | Pennsylvania |
| 90 | Joseph Byrne | 9 | Son | None | Pennsylvania |
| 91 | Mary Byrne | 6 | Daughter | None | Pennsylvania |
| 92 | Eugene Byrne | 1 | Son | None | Pennsylvania |
| 93 | Daniel J Sullivan | 50 | — | Fitter | Ireland |
| 94 | Eugene M Sullivan | 21 | Son | Musician | Pennsylvania |
| 95 | Cornelius F Sullivan | 18 | Son | None | Pennsylvania |
| 96 | Margaret M Sullivan | 15 | Daughter | None | Pennsylvania |
| 97 | Patrick J Jr Sullivan | 14 | Son | None | Pennsylvania |
| 98 | Helen Sullivan THIS PERSON | 12 | Daughter | None | Pennsylvania |
| 99 | John J Ames | 41 | Brother-in-law | Bricklayer | Pennsylvania |
| 100 | Helen E Ames | 41 | Sister | None | Connecticut |
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)