JC
John Cronin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Cronin across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 10-person household.
Age 45
b. ~1875
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | laborer |
| Industry | City of Cambridge |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1875 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bridget Cronin | Spouse | — | 40 | ~1880 |
| Katherine Cronin | Daughter | — | 13 | ~1907 |
| Hannah Cronin | Daughter | — | 17 | ~1903 |
| John Cronin | Son | — | 9 | ~1911 |
| Elizabeth Cronin | Daughter | — | 3 | ~1917 |
| Helen Cronin | Daughter | — | 7 | ~1913 |
| Teresa Cronin | Daughter | — | 5 | ~1915 |
| John Cronin | Head | — | 45 | ~1875 |
| James Cronin | Son | — | 11 | ~1909 |
| Margaret Cronin | Daughter | — | 18 | ~1902 |
Census Appearances
1910
Middlesex, Massachusetts
Head, age 35
Middlesex, Massachusetts · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 9 |
| Year of Immigration | 1897 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | City Dept |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Head, age 45
Middlesex, Massachusetts · implied b. ~1875 — 10 household members
| Surname | Cronin |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | laborer |
| Industry | City of Cambridge |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| 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 Cronin across 2 US Census years (1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
John Cronin
Head · 1920 · age 45 · b. ~1875 · Massachusetts
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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:0817)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Mubadeck | 12 | son | None | Massachusetts |
| 2 | Helen Mubadeck | 11 | daughter | None | Massachusetts |
| 3 | Olga Mubadeck | 7 | daughter | None | Massachusetts |
| 4 | Polly Mubadeck | 4 | daughter | None | Massachusetts |
| 5 | George Mubadeck | 1 | son | None | Massachusetts |
| 6 | Frank Hodgkins | 70 | head | Watchman | New Hampshire |
| 7 | Elena Hodgkins | 59 | wife | None | New York State |
| 8 | Henry D. Jr. Purves | 9 | grandson | None | Massachusetts |
| 9 | Chester G. Purves | 27 | son | Engineer | Massachusetts |
| 10 | Maria R. Purves | 20 | daughter-in-law | None | Scotland |
| 11 | Chester G. Jr. Purves | 1 | grandson | None | Massachusetts |
| 12 | Herbert H. Purves | 36 | son | Assembler | Massachusetts |
| 13 | Frank Taylor | 23 | boarder | Engraver | New York State |
| 14 | Harold Rodnick | 6 | boarder | None | New York S |
| 15 | Carlton Rodnick | 4 | boarder | None | New York S |
| 16 | George Moss | 5 | boarder | None | New York S |
| 17 | Richard Connelly | 3 | boarder | None | New York S |
| 18 | Theodore Marlow | 3 | boarder | None | New York S |
| 19 | Donald Marlow | 3 | boarder | None | New York S |
| 20 | Katherine Kenny | 3 | boarder | None | New York S |
| 21 | Helen Marlow | 1 | boarder | None | New York S |
| 22 | John Cronin THIS PERSON | 45 | head | Laborer | Ireland |
| 23 | Bridget Cronin | 40 | wife | None | Ireland |
| 24 | Margaret Cronin | 18 | daughter | Forelady | Massachusetts |
| 25 | Hannah Cronin | 17 | daughter | None | Massachusetts |
| 26 | Katherine Cronin | 13 | daughter | None | Massachusetts |
| 27 | James Cronin | 11 | son | None | Massachusetts |
| 28 | John Cronin | 9 | son | None | Massachusetts |
| 29 | Helen Cronin | 7 | daughter | None | Massachusetts |
| 30 | Teresa Cronin | 5 | daughter | None | Massachusetts |
| 31 | Elizabeth Cronin | 3 | daughter | None | Massachusetts |
| 32 | Charles G. Nyman | 38 | head | None | Finland |
| 33 | Agnes M. Nyman | 36 | wife | Laundress | New Hampshire |
| 34 | Harold F. Nyman | 10 | son | None | Massachusetts |
| 35 | Albert J. Nyman | 7 | son | None | Massachusetts |
| 36 | Clarence H. Nyman | 5 | son | None | Massachusetts |
| 37 | Helen E. Nyman | 3 | daughter | None | Massachusetts |
| 38 | Mary E. Mannix | 55 | head | General Work | Massachusetts |
| 39 | Mary J. Norton | 21 | niece | Auditor | Massachusetts |
| 40 | John A. Sheehan | 66 | head | Salesman | Canada |
| 41 | Mary Sheehan | 48 | wife | None | Ireland |
| 42 | Helen Sheehan | 22 | daughter | None | Massachusetts |
| 43 | Jeremiah Sullivan | 26 | cousin-in-law | Baker | Ireland |
| 44 | Lillian Kenefick | 24 | niece-in-law | None | Massachusetts |
| 45 | Mildred Kenefick | 13 | niece-in-law | None | Massachusetts |
| 46 | Edward M. Mckenna | 45 | head | Spreader | Vermont |
| 47 | Corina E. Mckenna | 43 | wife | None | Vermont |
| 48 | Edward M. Mckenna | 14 | son | None | Vermont |
| 49 | Bernard P. Mckenna | 12 | son | None | Massachusetts |
| 50 | Katherine Mckenna | 9 | daughter | None | 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)