Don, thanks so much for going to the trouble to send me this info. I printed it all off and by process of elimination (death, age, etc.) will try to narrow this down. It will then be easier to gain other information (pension, place of muster) that will allow me to locate my great-great grandfather's records that will leave me no doubt as to his service. There's always the possibility I will discover, contrary to family belief, that he did not serve but somehow I doubt this. I have found that most family memories about the War may be incorrect about places or dates but I have not found any, yet, to be completely false.
Again, thanks for your help.