JC
John Crowley — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Crowley across the 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1890), then head of a 8-person household.
Age 40
b. ~1890
Male
Son
Born: Ireland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Crowley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | City Of Boston |
| 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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Cornelius Crowley | Head | — | 46 | ~1884 |
| John Crowley | Son | — | 40 | ~1890 |
| Lucy Hagan | Daughter | — | 16 | ~1914 |
| Irene Hagan | Daughter | — | 13 | ~1917 |
| Mary Hagan | Daughter | — | 17 | ~1913 |
| Andrew Hagan | Son | — | 15 | ~1915 |
| Michael Murphy | Other | — | 14 | ~1916 |
| Lucy Crowley | Spouse | — | 42 | ~1888 |
Census Appearances
1920
Suffolk, Massachusetts
Other, age 33
Suffolk, Massachusetts · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | John |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Wool handler |
| Industry | Warehouse |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Suffolk, Massachusetts
Son, age 40
Suffolk, Massachusetts · implied b. ~1890 — 8 household members
| Surname | Crowley |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Alien |
| Year of Immigration | 1910 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 John Crowley across 2 US Census years (1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Crowley
Son · 1930 · age 40 · b. ~1890 · Massachusetts
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Sibling
Andrew Hagan
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Hagan
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Hagan
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Hagan
Sibling · 1930 · age 17
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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel954:0038)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Saul Shapiro | 29 | Head | Salesman | Poland |
| 52 | Leo Hagopian | 40 | Head | — | Armenia |
| 53 | Agnes Hagopian | 42 | Wife | — | Armenia |
| 54 | Leon M. Hagopian | 27 | Son | Shoe Repairer | Armenia |
| 55 | Vanquhi Hagopian | 22 | Daughter | Typist | Mass |
| 56 | Varjan Hagopian | 20 | Son | Chauffeur | Massachusetts |
| 57 | Vahi Hagopian | 15 | Son | — | Massachusetts |
| 58 | Vartuhi Hagopian | 13 | Daughter | — | Massachusetts |
| 59 | Cornelius Crowley | 46 | Head | Laborer | Ireland |
| 60 | Lucy Crowley | 42 | Wife | — | Ireland |
| 61 | John Crowley THIS PERSON | 40 | Son | Laborer | Ireland |
| 62 | Michael Murphy | 14 | Nephew | — | Ireland |
| 63 | Mary Hagan | 17 | Daughter | — | Mass |
| 64 | Lucy Hagan | 16 | Daughter | — | Mass |
| 65 | Andrew Hagan | 15 | Son | — | Massachusetts |
| 66 | Irene Hagan | 13 | Daughter | — | Massachusetts |
| 67 | Frank Aguglia | 41 | Head | Merchant | Italy |
| 68 | Amelia Aguglia | 32 | Wife | — | Italy |
| 69 | Althia Aguglia | 7 | Daughter | — | Mass |
| 70 | Frank Jr. Aguglia | 5 | Son | — | Mass |
| 71 | Peter Lydon | 64 | Head | Proprietor | England |
| 72 | Mary E. Lydon | 56 | Wife | — | Massachusetts |
| 73 | Mary B. Lydon | 30 | Daughter | Typist | Mass |
| 74 | Ada J. Lydon | 26 | Daughter | — | Massachusetts |
| 75 | Catherine Lydon | 23 | Daughter | — | Massachusetts |
| 76 | Elizabeth Lydon | 21 | Daughter | — | Massachusetts |
| 77 | Charles W. Maton | 32 | Head | Clerk | Massachusetts |
| 78 | Rosalie Maton | 24 | Wife | — | Ireland |
| 79 | Marion Maton | 4 | Daughter | — | Mass |
| 80 | Claire M. Maton | 3 | Daughter | — | Massachusetts |
| 81 | James O'Gara | 60 | Head | Laborer | Ireland |
| 82 | Thomas J. O'Gara | 23 | Son | Clerk | Mass |
| 83 | Margaret O'Gara | 16 | Daughter | — | Massachusetts |
| 84 | Anthony Balasunas | 47 | Head | Cabinetmaker | Lithuania |
| 85 | Elena J. Balasunas | 32 | Wife | — | Lithuania |
| 86 | Laura Balasunas | 12 | Daughter | — | New Jersey |
| 87 | Alphonse Balasunas | 4 | Son | — | Mass |
| 88 | William J. Gately | 42 | Head | Salesman | Massachusetts |
| 89 | Agnes Gately | 40 | Wife | — | Massachusetts |
| 90 | William J. Jr. Gately | 15 | Son | Messenger | Massachusetts |
| 91 | Paul B. Gately | 13 | Son | Helper | Massachusetts |
| 92 | Dorothy M. Gately | 11 | Daughter | Typist | Massachusetts |
| 93 | John Mangan | 35 | Head | Mason | Turkey |
| 94 | Mary Mangan | 33 | Wife | Hairdresser | Canada |
| 95 | John Jr. Mangan | 7 | Son | — | Mass |
| 96 | Christopher Mcfadden | 37 | Boarder | Stitcher | Canada |
| 97 | James Mcfadden | 34 | Brother | — | Canada English |
| 98 | Matthew Mcfadden | 32 | Brother | Carpenter | Canada English |
| 99 | Michael Donovan | 56 | Head | Presser | Ireland |
| 100 | Annie Donovan | 54 | Wife | — | 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)