DS
Dennis Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Dennis Sullivan across the 1900, 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 3-person household.
Age 51
b. ~1869
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Fireman |
| Industry | Chelsea Department |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | ireland |
| Occupation | Fireman |
| Township / Ward | Chelsea City |
| Est. Birth Year | ~1869 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Dennis | Age | Birth yr |
|---|---|---|---|---|
| Hannah Sullivan | Spouse | — | 47 | ~1873 |
| Edward Sullivan | Son | — | 22 | ~1898 |
| Dennis Sullivan | Head | — | 51 | ~1869 |
Census Appearances
1900
Suffolk, Massachusetts
Head, age 32
Suffolk, Massachusetts · implied b. ~1868 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | m |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1868 |
| Year of Immigration | 1892 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Day laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Suffolk, Massachusetts
Head, age 41
Suffolk, Massachusetts · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 17 |
| Year of Immigration | 1886 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fireman |
| Industry | Fire Department |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Suffolk, Massachusetts
Head, age 51
Suffolk, Massachusetts · implied b. ~1869 — 3 household members
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1889 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fireman |
| Industry | Chelsea Department |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1896 |
| Birthplace (normalized) | ireland |
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 Dennis Sullivan across 3 US Census years (1900, 1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Dennis Sullivan
Head · 1920 · age 51 · b. ~1869 · Massachusetts
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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
50 people indexed on this census page (ia:1920:14thcensusofpopu743unit:0966)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George H Spindler | 36 | Head | Shipper | Massachusetts |
| 2 | Mary T Spindler | 28 | Wife | — | Ireland |
| 3 | Helen G Spindler | 4 | Daughter | — | Massachusetts |
| 4 | George H Spindler | 1 | Son | — | Massachusetts |
| 5 | William Adgate | 52 | Boarder | House Painter | New York |
| 6 | Ernest K Rickner | 28 | Boarder | Cook | Massachusetts |
| 7 | Anna D Rickner | 28 | Wife | — | New Brunswick |
| 8 | Almeda Pursey | 58 | Head | Housekeeper | Maine |
| 9 | Guy T Pursey | 34 | Son | Motorman | Massachusetts |
| 10 | Leila N Pursey | 23 | Daughter | Stitcher | Massachusetts |
| 11 | Bertha B Pursey | 21 | Daughter | Telegraph Operator | Massachusetts |
| 12 | Dennis Sullivan THIS PERSON | 51 | Head | Fireman | Ireland |
| 13 | Hannah Sullivan | 47 | Wife | — | Ireland |
| 14 | Edward D Sullivan | 22 | Son | Ship Caulker | Massachusetts |
| 15 | Gorman Tilden | 79 | Head | Messenger | Massachusetts |
| 16 | Eliza Hannah Tilden | 77 | Wife | — | Massachusetts |
| 17 | Walter F Grawley | 54 | Head | Clerk | Massachusetts |
| 18 | Jennie L Grawley | 54 | Wife | — | Massachusetts |
| 19 | Norman R Grawley | 31 | Son | Clerk | Massachusetts |
| 20 | Norman F Hass | 57 | Head | Fireman | Maine |
| 21 | Annie M Hass | 54 | Wife | — | Maine |
| 22 | Ethel M Hass | 28 | Daughter | Teacher | Massachusetts |
| 23 | Otto Metzer | 20 | Boarder | Clerk | England |
| 24 | Robert A Shelley | 57 | Head | Line Carrier | Massachusetts |
| 25 | Georgiana Shelley | 47 | Wife | — | Nova Scotia |
| 26 | Mildred L Shelley | 23 | Daughter | Clerk | Massachusetts |
| 27 | Helen D Shelley | 16 | Daughter | — | Massachusetts |
| 28 | Robert A Jr Shelley | 16 | Son | — | Massachusetts |
| 29 | Margretta Savage | 69 | Head | — | Massachusetts |
| 30 | Reginald B Savage | 40 | Son | Clerk | New Hampshire |
| 31 | Elizabeth Savage | 30 | Daughter | Stenographer | Massachusetts |
| 32 | Gladys H Pinkham | 19 | Granddaughter | Maid | Massachusetts |
| 33 | William H Dunn | 57 | Head | Pressman | Massachusetts |
| 34 | Mary J Dunn | 52 | Wife | — | Ireland |
| 35 | William H Jr Dunn | 25 | Son | Pressman | Massachusetts |
| 36 | George D Dunn | 20 | Son | Machine Helper | Massachusetts |
| 37 | Catherine F Dunn | 17 | Daughter | Asst Librarian | Massachusetts |
| 38 | Joseph F Dockery | 8 | Grandson | — | Rhode Island |
| 39 | James D Dafney | 34 | Head | Auto Livery | Ireland |
| 40 | Marion A Dafney | 28 | Wife | — | Massachusetts |
| 41 | James Dafney | 4 | Son | — | Massachusetts |
| 42 | Collette Dafney | 2 | Daughter | — | Massachusetts |
| 43 | Myron A Brumm | 36 | Head | Fireman | Massachusetts |
| 44 | Edith K Brumm | 34 | Wife | — | Maine |
| 45 | Mildred A Brumm | 14 | Daughter | — | Massachusetts |
| 46 | Beatrice L Brumm | 9 | Daughter | — | Massachusetts |
| 47 | Dorothea E Brumm | 6 | Daughter | — | Massachusetts |
| 48 | Thomas Dafney | 65 | Head | Engineer | Ireland |
| 49 | Mary Dafney | 58 | Wife | — | Massachusetts |
| 50 | Thomas Jr Dafney | 28 | Son | — | 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)