Thanks Rosie and Dbreez,
I've been unravelling that information in the past few days...Mary Roy, youngest daughter of Isabella teamed with Eugene Lapreese and had Eugene jnr per the 1930 census only to die in December of the same year. Her sister, Isabella Crullo and husband, Mike raised Eugene and he was later killed in a fighter plane in 1954.
In the meantime Isabella's daughter, Gloria Crullo had a baby McGlynn before she married Robt Hoey whom she divorced. Then she married Franklin Johnson jnr (son of Franklin Johnson Snr and former wife) before he married Christina Roy and they were both killed in a car accident.
This family experienced some terrible heartbreak.

I think the use of the name McEwan for Isabella snr is a mistake used once and then perpetuated thereafter. We have pinpointed her in 1922 and then not found her in the U.S. in 1930...I hope something comes to light eventually.
