MC
Mary Crowley — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Crowley across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1905), then head of a 9-person household.
Age 15
b. ~1905
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Crowley |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Newton City |
| Est. Birth Year | ~1905 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Crowley | Head | — | 53 | ~1867 |
| Paul Crowley | Son | — | 6 | ~1914 |
| Joseph Crowley | Son | — | 12 | ~1908 |
| Annie Crowley | Spouse | — | 48 | ~1872 |
| James Crowley | Son | — | 22 | ~1898 |
| Madeline Crowley | Daughter | — | 10 | ~1910 |
| Mary Crowley | Daughter | — | 15 | ~1905 |
| John Crowley | Son | — | 17 | ~1903 |
| Anna Crowley | Daughter | — | 8 | ~1912 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age 4
Middlesex, Massachusetts · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 15
Middlesex, Massachusetts · implied b. ~1905 — 9 household members
| Surname | Crowley |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| 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 Crowley across 2 US Census years (1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Crowley
Daughter · 1920 · age 15 · b. ~1905 · Massachusetts
★ You are viewing this record
Sibling
James Crowley
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Crowley
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Crowley
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Crowley
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Crowley
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Crowley
Sibling · 1920 · age 6
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:1920:14thcensusofpopu716unit:0648)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John | 14 | Son | — | Massachusetts |
| 2 | Bernard | 12 | Son | — | Massachusetts |
| 3 | James | 11 | Son | — | Massachusetts |
| 4 | Mary | 10 | Daughter | — | Massachusetts |
| 5 | Alice | 7 | Daughter | — | Massachusetts |
| 6 | Rose A | 5 | Daughter | — | Massachusetts |
| 7 | Martin Donahue | 46 | Head | Laborer | Ireland |
| 8 | Catherine Donahue | 42 | Wife | — | Ireland |
| 9 | Mary Donahue | 17 | Daughter | Winder | Massachusetts |
| 10 | Arthur Donahue | 10 | Son | — | Massachusetts |
| 11 | William Donahue | 12 | Son | — | Massachusetts |
| 12 | Catherine Donahue | 10 | Daughter | — | Massachusetts |
| 13 | Rose A Donahue | 8 | Daughter | — | Massachusetts |
| 14 | Andrew Miggoy | 47 | Head | Laborer | Italy |
| 15 | Annie Miggoy | 40 | Wife | — | Italy |
| 16 | Mary Miggoy | 14 | Daughter | — | Massachusetts |
| 17 | John Miggoy | 13 | Son | — | Italy |
| 18 | Annie Miggoy | 9 | Daughter | — | Italy |
| 19 | Robert Miggoy | 7 | Son | — | Italy |
| 20 | Salvatore Miggoy | 4 | Son | — | Massachusetts |
| 21 | Annie Miggoy | 1 | Daughter | — | Massachusetts |
| 22 | Joseph Spina | 24 | Lodger | Laborer | Italy |
| 23 | John Crowley | 53 | Head | Drayman | Massachusetts |
| 24 | Annie Crowley | 48 | Wife | — | Ireland |
| 25 | James H Crowley | 22 | Son | Clerk | Massachusetts |
| 26 | John E Crowley | 17 | Son | Clerk | Massachusetts |
| 27 | Mary H Crowley THIS PERSON | 15 | Daughter | — | Massachusetts |
| 28 | Joseph Crowley | 12 | Son | — | Massachusetts |
| 29 | Madeline Crowley | 10 | Daughter | — | Massachusetts |
| 30 | Anna Crowley | 8 | Daughter | — | Massachusetts |
| 31 | Paul Crowley | 6 | Son | — | Massachusetts |
| 32 | Thomas Morris | 49 | Head | Cutter | Massachusetts |
| 33 | Mary Morris | 40 | Wife | Laundry | Massachusetts |
| 34 | Thomas Morris | 7 | Son | — | Massachusetts |
| 35 | Mary Morris | 0 | Daughter | — | Massachusetts |
| 36 | James Runn | 71 | Head | — | Ireland |
| 37 | Julia Runn | 71 | Wife | — | Ireland |
| 38 | Elizabeth O'Neil | 51 | Daughter | — | Massachusetts |
| 39 | William O'Neil | 21 | Grandson | Machinist | Massachusetts |
| 40 | Lester J O'Neil | 19 | Grandson | Machinist | Massachusetts |
| 41 | Alice O'Neil | 16 | Granddaughter | — | Massachusetts |
| 42 | Margaret O'Neil | 12 | Granddaughter | — | Massachusetts |
| 43 | Mary Law | 52 | Head | — | Massachusetts |
| 44 | Thomas Law | 24 | Son | — | Massachusetts |
| 45 | Thomas Tracy | 45 | Head | Engineer | Ireland |
| 46 | Mary Tracy | 44 | Wife | — | Massachusetts |
| 47 | Cornelius Tracy | 12 | Son | — | Massachusetts |
| 48 | Alice Tracy | 11 | Daughter | — | Massachusetts |
| 49 | John Tracy | 8 | Son | — | Massachusetts |
| 50 | James Mcdonald | 39 | Head | Contractor | 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)