RS
Robert Sullivan — 1920 US Census Record
Model Tree available1920 United States Federal Census · Hillsborough, New Hampshire
Our Model Tree links this Robert Sullivan across the 1910, 1920 and 1930 US Censuses in Hillsborough, New Hampshire (XGBoost, ~Confirmed), with identified parents John & Daniel — first a son (b.~1907), then head of a 5-person household.
Age 13
b. ~1907
Male
Son
Born: New Hampshire
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Hillsborough, New Hampshire |
| Surname | Sullivan |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Manchester City |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Sullivan | Head | — | 79 | ~1841 |
| Catherine Sullivan | Other | — | 76 | ~1844 |
| Edward Sullivan | Son | — | 10 | ~1910 |
| Robert Sullivan | Son | — | 13 | ~1907 |
| Annie Sullivan | Spouse | — | 43 | ~1877 |
Census Appearances
1910
Hillsborough, New …
Son, age 2
Hillsborough, New Hampshire · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Hillsborough, New …
Son, age 13
Hillsborough, New Hampshire · implied b. ~1907 — 5 household members
| Surname | Sullivan |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Hillsborough, New …
Son, age 22
Hillsborough, New Hampshire · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Roger T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | print assistant |
| Industry | county clerk |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Robert Sullivan across 3 US Census years (1910, 1920 and 1930) in Hillsborough, New Hampshire, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and father Daniel Sullivan (~0.83 confidence) and mother Margaret Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Annie Sullivan (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
John Sullivan
b. ~1841
Source father
● Household
· direct · ~0.92
Father
Daniel Sullivan
b. ~1850
Source mother>father
● Household
· direct · ~0.83
Mother
Margaret Sullivan
b. ~1867
Source mother
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1869
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Annie Sullivan
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sullivan
Son · 1920 · age 13 · b. ~1907 · New Hampshire
★ You are viewing this record
Sibling
Edward Sullivan
Sibling · 1920 · age 10
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 — Hillsborough, New Hampshire
Open full size
1920 US Federal Census — Hillsborough, New Hampshire
Page Contents
44 people indexed on this census page (ia:1920:14thcensusofpopu1010unit:0721)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary A. | 20 | Daughter | Stitcher | New Hampshire |
| 52 | Annie B. | 18 | Daughter | Stitcher | New Hampshire |
| 53 | John J. Hogan | 50 | Head | Laborer | Ireland |
| 54 | Mary Hogan | 45 | Wife | — | New Hampshire |
| 55 | John J. Hogan | 20 | Son | Laborer | New Hampshire |
| 56 | James Hogan | 13 | Son | — | New Hampshire |
| 57 | Thomas Hogan | 10 | Son | — | New Hampshire |
| 58 | Catherine Mahoney | 39 | Sister-in-law | Stitcher | New Hampshire |
| 59 | Joseph F. Conway | 38 | Head | Conductor | Massachusetts |
| 60 | Alice G. Conway | 30 | Wife | — | Massachusetts |
| 61 | Joan B. Conway | 4 | Daughter | — | Massachusetts |
| 62 | Patrick J. O'Connell | 40 | Head | Laborer | Ireland |
| 63 | Annie M. O'Connell | 40 | Wife | — | New Hampshire |
| 64 | Patrick J. Jr. O'Connell | 8 | Son | — | New Hampshire |
| 65 | Helen O'Connell | 7 | Daughter | — | New Hampshire |
| 66 | Edward O'Connell | 5 | Son | — | New Hampshire |
| 67 | John C. Sullivan | 79 | Head | — | New Hampshire |
| 68 | Annie E. Sullivan | 43 | Wife | — | New Hampshire |
| 69 | Robert J. Sullivan THIS PERSON | 13 | Son | — | New Hampshire |
| 70 | Edward Sullivan | 10 | Son | — | New Hampshire |
| 71 | Catherine Sullivan | 76 | Mother-in-law | — | Ireland |
| 72 | Arthur G. Sargent | 36 | Head | Machinist | New Hampshire |
| 73 | Helen G. Sargent | 45 | Wife | — | Canada |
| 74 | Jean H. Sargent | 7 | Son | — | New Hampshire |
| 75 | Peter White | 48 | Head | Laborer | Ireland |
| 76 | Mortimer M. White | 22 | Son | Laborer | New Hampshire |
| 77 | Mary White | 13 | Daughter | — | New Hampshire |
| 78 | Catherine White | 31 | Cousin | Stitcher | Ireland |
| 79 | Peter J. Dion | 50 | Head | Laborer | Canada |
| 80 | Mary Dion | 40 | Wife | — | Canada |
| 81 | Henry Dion | 13 | Son | — | New Hampshire |
| 82 | Alice Dion | 6 | Daughter | — | New York |
| 83 | Mary Dion | 4 | Daughter | — | New Hampshire |
| 84 | Doris Dion | 1 | Daughter | — | New Hampshire |
| 85 | James J. Hart | 50 | Head | Laborer | Massachusetts |
| 86 | Mary Hart | 40 | Wife | — | Massachusetts |
| 87 | James J. Jr. Hart | 25 | Son | Laborer | Massachusetts |
| 88 | Thomas J. Hart | 22 | Son | Laborer | Massachusetts |
| 89 | Mary E. Hart | 13 | Daughter | — | Massachusetts |
| 90 | Annie E. Hart | 10 | Daughter | — | Massachusetts |
| 91 | Catherine Hart | 8 | Daughter | — | Massachusetts |
| 92 | Helen Hart | 5 | Daughter | — | Massachusetts |
| 93 | Alice Hart | 3 | Daughter | — | Massachusetts |
| 94 | John Hart | 1 | Son | — | Massachusetts |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 5 parents
~0.92
Gen 2 · 1 grandparents
~0.83
Max depth 4 (1900–1950 window)
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)