MS
Mary Sullivan — 1920 US Census Record
Model Tree available1920 United States Federal Census · Hillsborough, New Hampshire
Our Model Tree links this Mary Sullivan across the 1900, 1910 and 1920 US Censuses in Hillsborough, New Hampshire (XGBoost, ~Confirmed), with identified parents Jacob & John — first a daughter (b.~1883), then head of a 7-person household.
Age 37
b. ~1883
Female
Daughter
Born: New Hampshire
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Hillsborough, New Hampshire |
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Dresser |
| Industry | Cotton mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Dresser |
| Township / Ward | Manchester City Part Of |
| Est. Birth Year | ~1883 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Sullivan | Daughter | — | 37 | ~1883 |
| John Sullivan | Head | — | 66 | ~1854 |
| James Sullivan | Son | — | 33 | ~1887 |
| John Sullivan | Son | — | 31 | ~1889 |
| Timothy Sullivan | Son | — | 27 | ~1893 |
| Daniel Sullivan | Son | — | 25 | ~1895 |
| Julia Sullivan | Spouse | — | 65 | ~1855 |
Census Appearances
1900
Hillsborough, New …
Daughter, age 16
Hillsborough, New Hampshire · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Birth Month | Nov |
| Birth Year | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Hillsborough, New …
Daughter, age 27
Hillsborough, New Hampshire · implied b. ~1883 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Mary Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Back Stitcher |
| Industry | Shoe Factory |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Hillsborough, New …
Daughter, age 37
Hillsborough, New Hampshire · implied b. ~1883 — 7 household members
| Surname | Sullivan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Dresser |
| Industry | Cotton mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Mary Sullivan across 3 US Census years (1900, 1910 and 1920) in Hillsborough, New Hampshire, using XGBoost record linkage. Identified parents: father Jacob Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Kate Sullivan (~0.92 confidence) and mother Julia Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Sullivan
b. ~1860
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1850
Source father
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1854
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1856
Source mother
● Household
· direct · ~0.92
Mother
Kate Sullivan
b. ~1864
Source mother
● Household
· direct · ~0.92
Mother
Julia Sullivan
b. ~1855
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Sullivan
Daughter · 1920 · age 37 · b. ~1883 · New Hampshire
★ You are viewing this record
Sibling
Daniel Sullivan
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Sullivan
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sullivan
Sibling · 1920 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1920 · age 31
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
50 people indexed on this census page (ia:1920:14thcensusofpopu1010unit:0115)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Mcnamara | 9 | — | — | New Hampshire |
| 52 | George Mcnamara | 7 | — | — | New Hampshire |
| 53 | Elizabeth Mcnamara | 4 | — | — | New Hampshire |
| 54 | Thomas Mcnamara | 2 | — | — | New Hampshire |
| 55 | Frank P Lyons | 33 | Head | Proprietor | Connecticut |
| 56 | Elizabeth D Lyons | 32 | Wife | — | Connecticut |
| 57 | Francis S Lyons | 2 | Son | — | New Hampshire |
| 58 | Frederick D Lyons | 0 | Son | — | New Hampshire |
| 59 | Catherine Sandley | 57 | Mother-in-law | Nurse | Connecticut |
| 60 | George W Tryon | 50 | Head | Salesman | New Hampshire |
| 61 | Louilla Tryon | 49 | Wife | — | New Jersey |
| 62 | Nellie Tryon | 25 | Daughter | Brush Maker | Massachusetts |
| 63 | B. George Mason | 27 | Head | Overseer | New York |
| 64 | Ethel N Mason | 26 | Wife | — | Massachusetts |
| 65 | Shirley E Mason | 2 | Daughter | — | New Hampshire |
| 66 | John J Roolnough | 34 | Head | Salesman | Canada |
| 67 | Tati L Roolnough | 33 | Wife | — | Canada |
| 68 | John J Roolnough | 2 | Son | — | New Hampshire |
| 69 | Mayra L Dorgan | 55 | Head | — | New Hampshire |
| 70 | Lionel Mudgford | 45 | Head | Salesman | England |
| 71 | Josephine Mudgford | 45 | Wife | — | Connecticut |
| 72 | Marcel H Hoyt | 40 | Head | Wood Worker | Maine |
| 73 | Electa Hoyt | 77 | Mother | — | Maine |
| 74 | George F Merrill | 30 | Head | Clergyman | England |
| 75 | Sarah S Merrill | 31 | Wife | — | England |
| 76 | Margaret E Merrill | 9 | Daughter | — | Nebraska |
| 77 | Douglas W Merrill | 0 | Son | — | Nebraska |
| 78 | John Sullivan | 66 | Head | Fireman | Ireland |
| 79 | Julia Sullivan | 65 | Wife | — | Ireland |
| 80 | James Sullivan | 33 | Son | Cigar Maker | New Hampshire |
| 81 | John L Sullivan | 31 | Son | Shoe Maker | New Hampshire |
| 82 | Timothy Sullivan | 27 | Son | Cigar Maker | New Hampshire |
| 83 | Daniel Sullivan | 25 | Son | Physician | New Hampshire |
| 84 | Mary Sullivan THIS PERSON | 37 | Daughter | Dresser | New Hampshire |
| 85 | Euphemia Durgin | 62 | Head | — | Scotland |
| 86 | Lillian Durgin | 38 | Daughter | Stenographer | New Hampshire |
| 87 | Foster G Durgin | 37 | Son | Blacksmith | New Hampshire |
| 88 | Carl G Holmberg | 57 | Head | Shoe Maker | Sweden |
| 89 | Anna Holmberg | 52 | Wife | — | Sweden |
| 90 | Carl O Holmberg | 19 | Son | Window Trimmer | New Hampshire |
| 91 | Dorothy R Holmberg | 1 | Granddaughter | — | New Hampshire |
| 92 | Archibald Buxton | 28 | Head | Manager | Connecticut |
| 93 | Ethel Buxton | 28 | Wife | — | Ohio |
| 94 | Richard Buxton | 2 | Son | — | Maine |
| 95 | Ella Buxton | 16 | Sister | — | Massachusetts |
| 96 | James B Dronne | 36 | Head | Cutter | New Hampshire |
| 97 | Florence Dronne | 38 | Wife | — | Canada |
| 98 | James B Dronne | 6 | Son | — | New Hampshire |
| 99 | Valarie F Dronne | 3 | Daughter | — | New Hampshire |
| 100 | Blanche M Dronne | 1 | Daughter | — | New Hampshire |
Related Census Records
Pedigree Summary
Mary + 4 siblings
Gen 1 · 6 parents
~0.92
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)