I did find Helen and Edward in 1940. I know that in 1958 they were living in East Orange as her half-brother Arthur died then. I know she was alive in 1978 as another half-brother Douglas died then.
I do not have Helen's obit. Her initial should be W. but maybe the M stands for MacDonald. Would you be able to send me the obit? peggyc2sky at yahoo.com Thank you.