MC
Mary Cronin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Worcester, Massachusetts
Our Model Tree links this Mary Cronin across the 1920, 1930 and 1940 US Censuses in Worcester, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 5-person household.
Age 36
b. ~1884
Female
Spouse
Born: Massachusetts
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Worcester, Massachusetts |
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| 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 | Worcester City |
| Est. Birth Year | ~1884 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cronin | Spouse | — | 36 | ~1884 |
| William Cronin | Son | — | 5 | ~1915 |
| John Cronin | Son | — | 11 | ~1909 |
| John Cronin | Head | — | 46 | ~1874 |
| Henry Cronin | Son | — | 1 | ~1919 |
Census Appearances
1920
Worcester, Massachusetts
Spouse, age 36
Worcester, Massachusetts · implied b. ~1884 — 5 household members
| Surname | Cronin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| 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
Worcester, Massachusetts
Spouse, age 47
Worcester, Massachusetts · implied b. ~1883 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Head, age 56
Worcester-County, Massachusetts · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cronan |
| Given Name | Mary H. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester City |
| 1935 Residence (County) | Worcester |
| Occupation | Housekeeper |
| Industry | Home |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 Cronin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Cronin
Spouse · 1920 · age 36 · b. ~1884 · 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 — Worcester, Massachusetts
Open full size
1920 US Federal Census — Worcester, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu751unit:0042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F Sullivan | 39 | Head | Ironmoulder | Massachusetts |
| 2 | Helen M Sullivan | 6 | Daughter | — | Massachusetts |
| 3 | John Sullivan | 5 | Son | — | Massachusetts |
| 4 | Robert Sullivan | 1 | Son | — | Massachusetts |
| 5 | Rose A De Courcey | 41 | Sister | — | Massachusetts |
| 6 | John W Buckley | 34 | Head | Stenographer | Massachusetts |
| 7 | Mary A Buckley | 33 | Sister | — | Massachusetts |
| 8 | Frank S Buckley | 26 | Brother | Bookkeeper | Massachusetts |
| 9 | Mary Buckley | 10 | Niece | — | Massachusetts |
| 10 | Barbara H Buckley | 7 | Niece | — | Massachusetts |
| 11 | Antonas Yompus | 30 | Head | Laborer | Poland |
| 12 | Annie Yompus | 22 | Wife | — | Poland |
| 13 | Angelia M Yompus | 11 | Daughter | — | Massachusetts |
| 14 | Joseph Yompus | 5 | Son | — | Massachusetts |
| 15 | James J Sullivan | 37 | Head | Ironmoulder | New Jersey |
| 16 | Mary M Sullivan | 34 | Wife | — | Massachusetts |
| 17 | James Sullivan | 3 | Son | — | Massachusetts |
| 18 | Ruth Sullivan | 1 | Daughter | — | Massachusetts |
| 19 | John F Cronin | 46 | Head | Wool Sorter | Massachusetts |
| 20 | Mary Cronin THIS PERSON | 36 | Wife | — | Massachusetts |
| 21 | John Cronin | 11 | Son | — | Massachusetts |
| 22 | William Cronin | 5 | Son | — | Massachusetts |
| 23 | Henry Cronin | 1 | Son | — | Massachusetts |
| 24 | John Donavan | 59 | Head | Salesman | Ireland |
| 25 | Catherine Donavan | 59 | Wife | — | Ireland |
| 26 | Anna L Donavan | 27 | Daughter | Teacher | Massachusetts |
| 27 | Charles Grey | 35 | Head | Fireman | Massachusetts |
| 28 | Alice F Grey | 29 | Wife | — | Massachusetts |
| 29 | William J Riley | 39 | Head | Laborer | Ireland |
| 30 | Catherine Riley | 45 | Wife | — | Ireland |
| 31 | John T V Riley | 11 | Son | — | Massachusetts |
| 32 | Catherine Riley | 9 | Daughter | — | Massachusetts |
| 33 | Marion Riley | 5 | Daughter | — | Massachusetts |
| 34 | Patrick J O'Connor | 52 | Head | Moulder | Ireland |
| 35 | Julia O'Connor | 48 | Wife | — | Massachusetts |
| 36 | Thomas J O'Connor | 20 | Son | — | Massachusetts |
| 37 | Francis J O'Connor | 16 | Son | Messenger | Massachusetts |
| 38 | Mary E O'Connor | 15 | Daughter | Stitcher | Massachusetts |
| 39 | Gladys M O'Connor | 14 | Daughter | — | Massachusetts |
| 40 | Fred L Boyer | 26 | Head | Installer | Massachusetts |
| 41 | Ellen G Boyer | 25 | Wife | — | Massachusetts |
| 42 | Daniel J Mcintyre | 29 | Head | Cost Clerk | Connecticut |
| 43 | Margaret Mcintyre | 25 | Wife | — | Connecticut |
| 44 | Doris L Mcintyre | 4 | Daughter | — | Connecticut |
| 45 | Lillian C Mcintyre | 1 | Daughter | — | Massachusetts |
| 46 | Ray W Snell | 28 | Head | Commercial Traveler | New Hampshire |
| 47 | Michael Chase | 30 | Head | Ironworker | Lithuania |
| 48 | Martha Chase | 30 | Wife | — | Lithuania |
| 49 | Stanley Chase | 7 | Son | — | Massachusetts |
| 50 | John Chase | 4 | Son | — | 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)