SS
Sarah Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Montgomery, Pennsylvania
Our Model Tree links this Sarah Sullivan across the 1910 and 1920 US Censuses in Montgomery, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 6-person household.
Age 11
b. ~1909
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Montgomery, Pennsylvania |
| Surname | Sullivan |
| Given Name | Sarah |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mckinley District |
| Est. Birth Year | ~1909 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| Nora Sullivan | Daughter | — | 18 | ~1902 |
| Dennis Sullivan | Head | — | 47 | ~1873 |
| Catherine Sullivan | Daughter | — | 15 | ~1905 |
| Sarah Sullivan | Daughter | — | 11 | ~1909 |
| Margaret Sullivan | Daughter | — | 11 | ~1909 |
| Nora Sullivan | Spouse | — | 48 | ~1872 |
Census Appearances
1910
Montgomery, Pennsylvania
Daughter, age 2
Montgomery, Pennsylvania · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Sarah |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Montgomery, Pennsylvania
Daughter, age 11
Montgomery, Pennsylvania · implied b. ~1909 — 6 household members
| Surname | Sullivan |
| Given Name | Sarah |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| 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 Sarah Sullivan across 2 US Census years (1910 and 1920) in Montgomery, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Sarah Sullivan
Daughter · 1920 · age 11 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Catherine Sullivan
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nora Sullivan
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1920 · age 11
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 — Montgomery, Pennsylvania
Open full size
1920 US Federal Census — Montgomery, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1604unit:0172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William C Beard | 45 | head | Mechanic | Pennsylvania |
| 2 | Elizabeth Beard | 39 | wife | None | Pennsylvania |
| 3 | William Beard | 9 | son | None | Pennsylvania |
| 4 | Robert Huber | 74 | head | Helper | Pennsylvania |
| 5 | Ellen Huber | 58 | wife | None | Pennsylvania |
| 6 | Edward Huber | 19 | son | Machinist | Pennsylvania |
| 7 | Gertrude Huber | 16 | daughter | Typist | Pennsylvania |
| 8 | John Jones | 56 | head | Gardener | New Jersey |
| 9 | Catherine Jones | 60 | wife | None | Delaware |
| 10 | William Jones | 25 | son | Blacksmith | Pennsylvania |
| 11 | Francis Jones | 22 | son | Plumber | Pennsylvania |
| 12 | George Jones | 21 | son | Blacksmith | Pennsylvania |
| 13 | William Stearne | 58 | head | Waiter | England |
| 14 | Mary Stearne | 32 | wife | None | Pennsylvania |
| 15 | James Stearne | 13 | son | None | Pennsylvania |
| 16 | Walter Stearne | 10 | son | None | Pennsylvania |
| 17 | Joseph Stearne | 7 | son | None | Pennsylvania |
| 18 | John Stearne | 3 | son | None | Pennsylvania |
| 19 | Hans Barthelmes | 25 | boarder | Salesman | Germany |
| 20 | William H Lee | 64 | head | Packer | Pennsylvania |
| 21 | Helen M Lee | 65 | wife | None | New York |
| 22 | William H Simmons | 34 | head | Manager | Pennsylvania |
| 23 | Cora L Simmons | 35 | wife | None | Pennsylvania |
| 24 | Helen L Simmons | 5 | daughter | None | Pennsylvania |
| 25 | William Fehling | 54 | head | Machinist | Pennsylvania |
| 26 | Florence Fehling | 25 | wife | None | Pennsylvania |
| 27 | Evelyn Fehling | 4 | daughter | None | Pennsylvania |
| 28 | William Thompson | 32 | head | Chauffeur | Pennsylvania |
| 29 | Laura Thompson | 36 | wife | None | Pennsylvania |
| 30 | Elizabeth A Thompson | 1 | daughter | None | Pennsylvania |
| 31 | Thomas Sagar | 33 | head | Salesman | Massachusetts |
| 32 | Anna M Sagar | 30 | wife | None | Pennsylvania |
| 33 | Margaret M Sagar | 4 | daughter | None | Pennsylvania |
| 34 | Thomas Jr Sagar | 2 | son | None | Pennsylvania |
| 35 | Peter Lysak | 34 | head | Oil Rubber | Austria |
| 36 | Anna Lysak | 25 | wife | None | Austria |
| 37 | Daniel Lysak | 3 | son | None | New Jersey |
| 38 | Dennis Sullivan | 47 | head | Gardener | Ireland |
| 39 | Nora Sullivan | 48 | wife | None | Ireland |
| 40 | Nora Sullivan | 18 | daughter | Stenographer | Pennsylvania |
| 41 | Catherine Sullivan | 15 | daughter | Helper | Pennsylvania |
| 42 | Sarah Sullivan THIS PERSON | 11 | daughter | None | Pennsylvania |
| 43 | Margaret Sullivan | 11 | daughter | None | Pennsylvania |
| 44 | Frank H. Branch | 26 | head | Machinist | Pennsylvania |
| 45 | Catherine H. Branch | 26 | wife | None | Pennsylvania |
| 46 | Frank H. Branch | 0 | son | None | Pennsylvania |
| 47 | William Lury | 30 | head | Machinist | Germany |
| 48 | Edna Lury | 26 | wife | None | Pennsylvania |
| 49 | William Lury | 3 | son | None | Pennsylvania |
| 50 | Edna Lury | 0 | daughter | None | Pennsylvania |
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)