It's good to finally hear from another Cleveland Scullin, I know we are out there. Anyway I've seen your grandfathers name alot while doing my research. I havn't been able to make a connection to my family with him. As far as I can tell my g-great grandfather James and his brother Terrence came over at the turn of the century. James had four children:Terrence, James, Helen and Martin. Terrence married Effie Smith and had two daughters: Effie and Myrtle. Jamed and Terrences' parents names were Terrence and Susanna Fitzpatrick. Does any of this ring with you?
I would suggest going to Cleveland Public Library's necrology file, if you havn't already. It has all the death notices from late 1800's to about 1975.
Let me know if you can make a connection or if you find anything interesting. Monica