1910 Census:
name: Ellen Cassiday
birthplace: England
relationship to head of household: Wife
residence: Boston Ward 24, Suffolk, Massachusetts
marital status: Married
immigration year: 1889
father's birthplace: England
mother's birthplace: England
William Cassiday M 50y
Ellen Cassiday F 50y
child James Cassiday M 24y
child Michael Cassiday M 20y
child John Cassiday M 18y
child Loretta Cassiday F 17y
child Stella Cassiday F 14y
child Christopher Sharland M 0y 9m

1920 census:
Ellen Cassidy 62y, widow
child James Cassidy 33y
child Christopher Cassidy 11y, adopted son
child John W Cassidy 29y


1930 census in Dorchester:
Renting at 309 Adams Street
Ellen Cassidy 74, widow, married at age 18, immigration year 1883.
John W Cassidy 37, unmarried, a signal man for the railroad.