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Mary Mullen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Mullen across the 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 5-person household.
Age 11
b. ~1909
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Mullen |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Student |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Student |
| Township / Ward | Boston City |
| 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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mullen | Daughter | — | 11 | ~1909 |
| James Mullen | Head | — | 44 | ~1876 |
| Joseph Mullen | Son | — | 15 | ~1905 |
| John Mullen | Son | — | 4 | ~1916 |
| Theresa Mullen | Spouse | — | 42 | ~1878 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 1
Suffolk, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 11
Suffolk, Massachusetts · implied b. ~1909 — 5 household members
| Surname | Mullen |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Student |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Mary Mullen across 2 US Census years (1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mullen
Daughter · 1920 · age 11 · b. ~1909 · Massachusetts
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Sibling
Joseph Mullen
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mullen
Sibling · 1920 · age 4
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 — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu737unit:0823)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Neil J. Duffley | 8 | Son | — | Massachusetts |
| 2 | Margaret L. Duffley | 39 | Sister-in-law | Worker | Massachusetts |
| 3 | Mary A. Duffley | 36 | Sister-in-law | Lady | Massachusetts |
| 4 | Catherine Keefe | 57 | Head | Housekeeper | Ireland |
| 5 | Edward J. Keefe | 36 | Son | Worker | Massachusetts |
| 6 | Leona L. Keefe | 32 | Daughter | Operator | Massachusetts |
| 7 | Richard F. Keefe | 30 | Son | Clerk | Massachusetts |
| 8 | Margaret M. Keefe | 28 | Daughter | Milliner | Massachusetts |
| 9 | Jane King | 63 | Head | Housekeeper | Ireland |
| 10 | Catherine F. King | 31 | Daughter | Stenographer | Ireland |
| 11 | Ellen J. King | 29 | Daughter | Worker | Massachusetts |
| 12 | James J. Mullen | 44 | Head | Officer | Massachusetts |
| 13 | Theresa V. Mullen | 42 | Wife | Housekeeper | Ireland |
| 14 | Joseph A. Mullen | 15 | Son | Student | Massachusetts |
| 15 | Mary A. Mullen THIS PERSON | 11 | Daughter | Student | Massachusetts |
| 16 | John A. Mullen | 4 | Son | — | Massachusetts |
| 17 | Edward Smith | 48 | Head | Letter Carrier | Virginia |
| 18 | Anna J. Smith | 40 | Wife | Housekeeper | Ireland |
| 19 | Mildred Smith | 15 | Daughter | Student | Massachusetts |
| 20 | Patrick J. Connolly | 44 | Head | C.O. Clerk | Massachusetts |
| 21 | Isabella Connolly | 37 | Wife | Housekeeper | Massachusetts |
| 22 | William Connolly | 12 | Son | Student | Massachusetts |
| 23 | Edward Connolly | 10 | Son | Student | Massachusetts |
| 24 | Thomas Connolly | 8 | Son | Student | Massachusetts |
| 25 | David J. Connolly | 6 | Son | Student | Massachusetts |
| 26 | Anna Connolly | 3 | Daughter | — | Massachusetts |
| 27 | John Connolly | 79 | Head | — | Ireland |
| 28 | Mary Murphy | 62 | Head | — | Ireland |
| 29 | Anna G. Murphy | 38 | Daughter | Operator | Ireland |
| 30 | Katherine A. Murphy | 36 | Daughter | Operator | Ireland |
| 31 | Patrick Mcgoldrick | 32 | Head | Manager | Ireland |
| 32 | Anna G. Mcgoldrick | 31 | Wife | Housekeeper | Ireland |
| 33 | John V. Dole | 36 | Head | Janitor | Massachusetts |
| 34 | Mary E. Dole | 32 | Wife | Housekeeper | Ireland |
| 35 | Helen Dole | 7 | Daughter | Student | Massachusetts |
| 36 | Agnes F. Dole | 5 | Daughter | Student | Massachusetts |
| 37 | John J. Jr. Dole | 2 | Son | — | Massachusetts |
| 38 | James F. Duncan | 37 | Head | Janitor | Massachusetts |
| 39 | Katherine T. Duncan | 29 | Wife | Housekeeper | Massachusetts |
| 40 | Joseph H. Duncan | 8 | Son | Student | Massachusetts |
| 41 | Eileen Duncan | 6 | Daughter | Student | Massachusetts |
| 42 | Mary Duncan | 4 | Daughter | — | Massachusetts |
| 43 | Mary F. Gorman | 56 | Mother-in-law | — | Ireland |
| 44 | Edward Gorman | 72 | Head | — | Ireland |
| 45 | Edward J. Gorman | 24 | Son | Clerk | Ireland |
| 46 | Mary A. Gorman | 25 | Daughter | Operator | Ireland |
| 47 | Francis Gorman | 22 | Son | Clerk | Ireland |
| 48 | Margaret Gorman | 42 | Wife | Housekeeper | Ireland |
| 49 | Stephen J. Gorman | 54 | Head | Fireman | Ireland |
| 50 | Anna B. Gorman | 44 | Wife | Housekeeper | Ireland |
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)