RS
Richard Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Richard Sullivan across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1899), then head of a 10-person household.
Age 21
b. ~1899
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Pressman |
| Industry | Chemical Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Pressman |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1899 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Daniel Sullivan | Son | — | 14 | ~1906 |
| Mary Sullivan | Daughter | — | 30 | ~1890 |
| Anna Sullivan | Daughter | — | 19 | ~1901 |
| Richard Sullivan | Son | — | 21 | ~1899 |
| John Sullivan | Son | — | 25 | ~1895 |
| Margaret Sullivan | Daughter | — | 27 | ~1893 |
| Catherine Sullivan | Daughter | — | 16 | ~1904 |
| James Sullivan | Son | — | 23 | ~1897 |
| Michael Sullivan | Head | — | 58 | ~1862 |
| Mary Sullivan | Spouse | — | 56 | ~1864 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Richard J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ire English |
| Mother's Birthplace | Ire English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1899 — 10 household members
| Surname | Sullivan |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Pressman |
| Industry | Chemical Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Richard Sullivan across 2 US Census years (1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Sullivan
Son · 1920 · age 21 · b. ~1899 · Massachusetts
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Sibling
Catherine Sullivan
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sullivan
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sullivan
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Sullivan
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Sullivan
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sullivan
Sibling · 1920 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Sullivan
Sibling · 1920 · age 14
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 — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu708unit:0399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Corcoran | 25 | daughter | — | Massachusetts |
| 52 | John F. Corcoran | 33 | son-in-law | — | Massachusetts |
| 53 | Mary Corcoran | 7 | daughter | — | Massachusetts |
| 54 | Helen Corcoran | 6 | granddaughter | — | Massachusetts |
| 55 | Catherine Corcoran | 2 | granddaughter | — | Massachusetts |
| 56 | Margaret Applethorne | 23 | boarder | — | Massachusetts |
| 57 | Patrick J. Stanton | 61 | boarder | Watchman | Massachusetts |
| 58 | Frederick Stanton | 26 | boarder | Chef | Massachusetts |
| 59 | James Donovan | 56 | head | Laborer | Ireland |
| 60 | Mary Donovan | 50 | wife | — | Ireland |
| 61 | Mary Donovan | 22 | daughter | Stitcher | Massachusetts |
| 62 | James Donovan | 21 | son | Chauffeur | Massachusetts |
| 63 | Catherine Donovan | 18 | daughter | Stitcher | Massachusetts |
| 64 | Margaret Donovan | 15 | daughter | — | Massachusetts |
| 65 | Joseph Donovan | 11 | son | — | Massachusetts |
| 66 | Bridget Biggins | 52 | sister-in-law | Stitcher | Ireland |
| 67 | Michael Sullivan | 58 | head | Laborer | Ireland |
| 68 | Mary Sullivan | 56 | wife | — | Ireland |
| 69 | Mary E. Sullivan | 30 | daughter | Telephone Oper. | Massachusetts |
| 70 | Margaret R. Sullivan | 27 | daughter | Bookkeeper | Massachusetts |
| 71 | John F. Sullivan | 25 | son | Bookbinder | Massachusetts |
| 72 | James Sullivan | 23 | son | Trucker | Massachusetts |
| 73 | Richard Sullivan THIS PERSON | 21 | son | Pressman | Massachusetts |
| 74 | Anna G. Sullivan | 19 | daughter | Telephone Oper. | Massachusetts |
| 75 | Catherine G. Sullivan | 16 | daughter | — | Massachusetts |
| 76 | Daniel W. Sullivan | 14 | son | — | Massachusetts |
| 77 | Timothy Mormile | 55 | head | Chauffeur | Ireland |
| 78 | Mary Mormile | 49 | wife | — | Ireland |
| 79 | James Mormile | 25 | son | Machinist | Massachusetts |
| 80 | John Mormile | 23 | son | Salesman | Massachusetts |
| 81 | Bessie Mormile | 21 | daughter | Laborer | Massachusetts |
| 82 | Helen Mormile | 17 | daughter | Typist | Massachusetts |
| 83 | Catherine Mormile | 16 | daughter | — | Massachusetts |
| 84 | Josephine Mormile | 12 | daughter | — | Massachusetts |
| 85 | James Mclaughlin | 55 | head | Machinist | Ireland |
| 86 | Grace Mclaughlin | 51 | wife | — | Ireland |
| 87 | James Mclaughlin | 16 | son | Messenger Boy | Massachusetts |
| 88 | Grace Mclaughlin | 14 | daughter | — | Massachusetts |
| 89 | John Mclaughlin | 12 | son | — | Massachusetts |
| 90 | William Roche | 75 | head | — | Ireland |
| 91 | Rose W. Roche | 66 | wife | — | Ireland |
| 92 | Agnes E. Roche | 33 | daughter | Clerk | Pennsylvania |
| 93 | Gerald P. Roche | 31 | son | Clerk | Pennsylvania |
| 94 | Michael Coyne | 59 | head | — | Ireland |
| 95 | Annie Coyne | 50 | wife | — | Ireland |
| 96 | Joseph Coyne | 26 | son | Bookbinder | Massachusetts |
| 97 | John Coyne | 24 | son | Pressman | Massachusetts |
| 98 | Philip Coyne | 19 | son | Pressman | Massachusetts |
| 99 | Mary Coyne | 17 | daughter | Stenographer | Massachusetts |
| 100 | Anna Coyne | 14 | daughter | — | 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)