MC
Mary Crowley — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Crowley across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 7-person household.
Age 40
b. ~1890
Female
Spouse
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Crowley |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Maynard Town |
| Est. Birth Year | ~1890 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Isabel Crowley | Daughter | — | 11 | ~1919 |
| Martin Crowley | Son | — | 6 | ~1924 |
| Albert Crowley | Son | — | 16 | ~1914 |
| Francis Crowley | Head | — | 43 | ~1887 |
| Mary Cleary | Other | — | 62 | ~1868 |
| Mary Crowley | Spouse | — | 40 | ~1890 |
| Margaret Crowley | Daughter | — | 13 | ~1917 |
Census Appearances
1920
Middlesex, Massachusetts
Spouse, age 30
Middlesex, Massachusetts · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Spouse, age 40
Middlesex, Massachusetts · implied b. ~1890 — 7 household members
| Surname | Crowley |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 21 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Veteran | No |
| 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 (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Crowley
Spouse · 1930 · age 40 · b. ~1890 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel924:0099)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Antonio Perrillo | 73 | Head | Retired | Italy |
| 2 | Philomena Perrillo | 70 | Wife | — | Italy |
| 3 | Grace Lanzarotta | 66 | Roomer | — | Italy |
| 4 | Stefan Brokerski | 37 | Head | Weaver | Poland |
| 5 | Michalina Brokerski | 32 | Wife | — | Poland |
| 6 | Joseph Brokerski | 14 | Son | — | Massachusetts |
| 7 | Josephine Brokerski | 13 | Daughter | — | Massachusetts |
| 8 | Frank Brokerski | 12 | Son | — | Massachusetts |
| 9 | Stefan Jr Brokerski | 9 | Son | — | Massachusetts |
| 10 | Bronia Kieszile | 34 | Sister | Winder | Poland |
| 11 | Helen Kieszile | 14 | Niece | — | Massachusetts |
| 12 | James L Mccarthy | 66 | Head | Elevator Op | New York |
| 13 | Margaret A Mccarthy | 61 | Wife | — | Massachusetts |
| 14 | Louise Mccarthy | 23 | Son | Manager | Massachusetts |
| 15 | James H Donnelly | 31 | Head | Manager | Massachusetts |
| 16 | Gladys Donnelly | 29 | Wife | — | Massachusetts |
| 17 | Edward Donnelly | 27 | Brother | Clerk | Massachusetts |
| 18 | William H Barron | 38 | Head | Percher | Massachusetts |
| 19 | Ruth S Barron | 37 | Wife | — | Massachusetts |
| 20 | George Turner | 67 | Head | Spinner | England |
| 21 | Sarah Turner | 60 | Wife | — | England |
| 22 | George Brackett | 56 | Head | Laborer | New Hampshire |
| 23 | Martha Brackett | 56 | Wife | — | New Hampshire |
| 24 | Dennis Brackett | 8 | Son | — | Massachusetts |
| 25 | Roy M Smith | 37 | Head | Manager | Canada English |
| 26 | Alice S Smith | 33 | Wife | — | Canada English |
| 27 | Nellie Smith | 10 | Daughter | — | Massachusetts |
| 28 | George Smith | 8 | Son | — | Massachusetts |
| 29 | John Smith | 5 | Son | — | Massachusetts |
| 30 | Frank Smith | 3 | Son | — | Massachusetts |
| 31 | Frederick Gurney | 20 | Brother in law | Clerk | Canada English |
| 32 | Francis J Crowley | 43 | Head | Foreman | Massachusetts |
| 33 | Mary E Crowley THIS PERSON | 40 | Wife | — | Massachusetts |
| 34 | Albert G Crowley | 16 | Son | — | Massachusetts |
| 35 | Margaret E Crowley | 13 | Daughter | — | Massachusetts |
| 36 | Isabel F Crowley | 11 | Daughter | — | Massachusetts |
| 37 | Martin F Crowley | 6 | Son | — | Massachusetts |
| 38 | Mary Cleary | 62 | Roomer | Helper | Massachusetts |
| 39 | Charles Ryan | 68 | Head | Watchman | Massachusetts |
| 40 | John Sosi | 46 | Head | Weaver | Finland |
| 41 | Mary Sosi | 48 | Wife | — | Finland |
| 42 | Alice Sosi | 22 | Daughter | — | Finland |
| 43 | Ernest S Sosi | 20 | Son | Salesman | Massachusetts |
| 44 | Verno Koponen | 50 | Roomer | Weaver | Finland |
| 45 | Francis G Prue | 52 | Head | Fireman | Massachusetts |
| 46 | Mary L Prue | 51 | Wife | — | Massachusetts |
| 47 | Kenneth Prue | 22 | Son | Carpenter | Massachusetts |
| 48 | Madeline G Prue | 21 | Daughter | Stenographer | Massachusetts |
| 49 | Amy Lodge | 72 | Wife | — | Ireland |
| 50 | Michael F Mullan | 63 | Head | Salesman | Ireland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)