MC
Mary Cassidy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Cassidy across the 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1895), then head of a 9-person household.
Age 25
b. ~1895
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Cassidy |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Secretary |
| Industry | State Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Secretary |
| Township / Ward | Boston |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Rachel Cassidy | Daughter | — | 8 | ~1912 |
| Doris Cassidy | Daughter | — | 18 | ~1902 |
| Esther Cassidy | Daughter | — | 23 | ~1897 |
| Mary Cassidy | Daughter | — | 25 | ~1895 |
| Britta Cassidy | Daughter | — | 21 | ~1899 |
| Edward Cassidy | Head | — | 58 | ~1862 |
| Gerard Cassidy | Son | — | 17 | ~1903 |
| John Cassidy | Son | — | 11 | ~1909 |
| Esther Cassidy | Spouse | — | 48 | ~1872 |
Census Appearances
1910
Suffolk, Massachusetts
Daughter, age 16
Suffolk, Massachusetts · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cassidy |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Daughter, age 25
Suffolk, Massachusetts · implied b. ~1895 — 9 household members
| Surname | Cassidy |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Secretary |
| Industry | State Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 Cassidy across 2 US Census years (1910 and 1920) in Suffolk, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cassidy
Daughter · 1920 · age 25 · b. ~1895 · Massachusetts
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Sibling
John Cassidy
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Britta Cassidy
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachel Cassidy
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Cassidy
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerard Cassidy
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Cassidy
Sibling · 1920 · age 23
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 — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu740unit:0432)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert L. Hougetaling | 41 | Head | Manager | New York |
| 2 | Ella E. Hougetaling | 39 | Wife | — | New York |
| 3 | Ella C. Hougetaling | 7 | Daughter | — | Minnesota |
| 4 | Richard E. Marble | 38 | Head | Candy Maker | Iowa |
| 5 | Nellie G. Marble | 27 | Wife | — | Massachusetts |
| 6 | Richard B. Marble | 9 | Son | — | Massachusetts |
| 7 | Laura G. Marble | 7 | Daughter | — | Massachusetts |
| 8 | Olive J. Marble | 5 | Daughter | — | Massachusetts |
| 9 | Mary F. Joyce | 28 | Head | Linen Room | Massachusetts |
| 10 | Mary F. Joyce | 22 | Wife | — | Massachusetts |
| 11 | Lady G. Joyce | 1 | Daughter | — | Massachusetts |
| 12 | Frank H. Skinner | 45 | Head | Iceman | Maine |
| 13 | Augusta Skinner | 43 | Wife | — | Canada |
| 14 | Edward F. Cassidy | 58 | Head | Broker | Massachusetts |
| 15 | Esther G. Cassidy | 48 | Wife | — | Massachusetts |
| 16 | Mary J. Cassidy THIS PERSON | 25 | Daughter | Secretary | Massachusetts |
| 17 | Esther G. Cassidy | 23 | Daughter | Clerk | Massachusetts |
| 18 | Britta M. Cassidy | 21 | Daughter | Stenographer | Massachusetts |
| 19 | Doris A. Cassidy | 18 | Daughter | — | Massachusetts |
| 20 | Gerard E. Cassidy | 17 | Son | — | Massachusetts |
| 21 | John J. Cassidy | 11 | Son | — | Massachusetts |
| 22 | Rachel Cassidy | 8 | Daughter | — | Massachusetts |
| 23 | Charles H. Mckenney | 28 | Head | Agent | Massachusetts |
| 24 | Myrtle H. Mckenney | 28 | Wife | — | Massachusetts |
| 25 | Percy E. Durham | 42 | Boarder | Salesman | Massachusetts |
| 26 | Ethel R. Durham | 37 | Boarder | Bookkeeper | Massachusetts |
| 27 | Mary E. Crowell | 62 | Boarder | Fitter | Canada |
| 28 | Myrtle A. Durham | 11 | Boarder | — | Massachusetts |
| 29 | Louis Q. Wiggin | 52 | Head | Grocer | Massachusetts |
| 30 | May Wiggin | 49 | Wife | — | Massachusetts |
| 31 | John F. Noon | 68 | Head | Painter | Massachusetts |
| 32 | Mary E. Noon | 67 | Wife | — | Maine |
| 33 | Nellie Noon | 35 | Daughter | — | Massachusetts |
| 34 | Eleanor A. Riley | 17 | Granddaughter | — | Massachusetts |
| 35 | James F. Abberton | 56 | Head | Carpenter | Ireland |
| 36 | Bridget T. Abberton | 55 | Wife | — | Massachusetts |
| 37 | Edgar F. Abberton | 15 | Son | — | Massachusetts |
| 38 | Margaret E. Madden | 57 | Boarder | Dressmaker | Massachusetts |
| 39 | John Waller | 56 | Head | Gardener | England |
| 40 | James Crown | 41 | Head | Teamster | Ireland |
| 41 | Mary J. Crown | 41 | Wife | — | Ireland |
| 42 | John P. Crown | 14 | Son | — | Massachusetts |
| 43 | Timothy Crown | 13 | Son | — | Massachusetts |
| 44 | James J. Crown | 10 | Son | — | Massachusetts |
| 45 | Anna D. Crown | 5 | Daughter | — | Massachusetts |
| 46 | Isaac H. Ayres | 62 | Head | Haberdasher | Massachusetts |
| 47 | Florence S. Ayres | 52 | Wife | — | Massachusetts |
| 48 | Carolyn S. Ayres | 13 | Daughter | — | Massachusetts |
| 49 | Atherton Ayres | 12 | Son | — | Massachusetts |
| 50 | Harriet M. Beningham | 15 | Stepdaughter | — | 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)