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Mary Mullen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Mullen across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 8-person household.
Age 12
b. ~1908
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1908 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Leona Mullen | Daughter | — | 6 | ~1914 |
| Mary Mullen | Daughter | — | 12 | ~1908 |
| Bernadine Mullen | Daughter | — | 8 | ~1912 |
| William Mullen | Head | — | 33 | ~1887 |
| Mary Burke | Other | — | 59 | ~1861 |
| Grace Burke | Other | — | 29 | ~1891 |
| Joseph Mullen | Son | — | 10 | ~1910 |
| Mary Mullen | Spouse | — | 30 | ~1890 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age 2
Middlesex, Massachusetts · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1908 — 8 household members
| Surname | Mullen |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| 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 Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mullen
Daughter · 1920 · age 12 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Leona Mullen
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernadine Mullen
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mullen
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 — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu707unit:0683)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph Mruzkiewicz | 35 | Head | Trimmer | Poland |
| 52 | Stella Mruzkiewicz | 25 | Wife | — | Poland |
| 53 | Helen Mruzkiewicz | 10 | Daughter | — | Massachusetts |
| 54 | William J Lee | 45 | Head | Machinist | Massachusetts |
| 55 | Julia Lee | 42 | Wife | — | Ireland |
| 56 | Elizabeth Lee | 14 | Daughter | — | Massachusetts |
| 57 | Dorothy Lee | 12 | Daughter | — | Massachusetts |
| 58 | Francis E Lee | 10 | Daughter | — | Massachusetts |
| 59 | Mary A Lee | 5 | Daughter | — | Massachusetts |
| 60 | Aristide Voigt | 45 | Head | Laborer | Canada |
| 61 | Elizabeth Voigt | 38 | Wife | — | Canada |
| 62 | Harold Voigt | 15 | Son | Laborer | Massachusetts |
| 63 | Mary E Voigt | 13 | Step Daughter | — | Massachusetts |
| 64 | Charles Mahoney | 7 | Boarder | — | Massachusetts |
| 65 | Mary Fuller | 46 | Head | Matron | Ireland |
| 66 | Viola Fuller | 22 | Daughter | Book Keeper | Massachusetts |
| 67 | Michael Fuller | 31 | Brother | Teamster | Massachusetts |
| 68 | Margaret Fuller | 29 | Sister | Machine Operator | Massachusetts |
| 69 | Bridget L Scott | 43 | Head | Laundress | Ireland |
| 70 | John F Scott | 20 | Son | Machinist | Massachusetts |
| 71 | Anna M Scott | 14 | Daughter | — | Massachusetts |
| 72 | Gertrude L Scott | 11 | Daughter | — | Massachusetts |
| 73 | Thomas J Scott | 24 | Nephew | Teamster | Massachusetts |
| 74 | Thomas Hinds | 45 | Head | Iron Molder | Massachusetts |
| 75 | Margaret Hinds | 40 | Wife | — | New Brunswick |
| 76 | Walter Hinds | 8 | Son | — | Massachusetts |
| 77 | John H Hinds | 51 | Head | Core Maker | Africa |
| 78 | Elizabeth J Hinds | 45 | Wife | — | Massachusetts |
| 79 | Joseph Hinds | 25 | Son | Leather Cutter | Massachusetts |
| 80 | Mary Hinds | 15 | Daughter | — | Massachusetts |
| 81 | Ruth Hinds | 11 | Daughter | — | Massachusetts |
| 82 | Gertrude Hinds | 9 | Daughter | — | Massachusetts |
| 83 | William D Mullen | 33 | Head | Book Bind | Massachusetts |
| 84 | Mary A Mullen | 30 | Wife | Factory Worker | Massachusetts |
| 85 | Mary Mullen THIS PERSON | 12 | Daughter | — | Massachusetts |
| 86 | Joseph Mullen | 10 | Son | — | Massachusetts |
| 87 | Bernadine Mullen | 8 | Daughter | — | Massachusetts |
| 88 | Leona Mullen | 6 | Daughter | — | Massachusetts |
| 89 | Mary Burke | 59 | Mother in Law | — | Massachusetts |
| 90 | Grace A Burke | 29 | Sister in Law | Machine Operator | Massachusetts |
| 91 | Warren H Eginton | 29 | Head | Stage Builder | Kansas |
| 92 | Rose Eginton | 26 | Wife | — | Massachusetts |
| 93 | Warren H Eginton | 7 | Son | — | Massachusetts |
| 94 | Melvin O Eginton | 4 | Son | — | Massachusetts |
| 95 | Edwin F Eginton | 2 | Son | — | Massachusetts |
| 96 | Emily Goncalo | 57 | Head | — | Portugal |
| 97 | Mary Goncalo | 33 | Daughter | Iron Maker | Portugal |
| 98 | Manuel Goncalo | 40 | Son | Laborer | Portugal |
| 99 | Manuel Goncalo | 8 | Grandson | — | Massachusetts |
| 100 | Tony Pacheco | 34 | Head | Laborer | Portugal |
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)