Looking for a Cemetery in Drumreilly

I will be visiting Leitrim in May and would like to find my ancestors graves.  All I know is they lived in Drumreilly Lower Parish, County Leitrim.  I know my 2nd great-grandmother died 10 Mar 1889 and my 2nd great-grandfather died before that.  My 2nd great-grandmother on the other side of my family died 15 mar 1864, also in Drumreilly Lower Parish.  That part of the family lived in Gleb.  I think the other side lived in Bawnboy.  They were Roman Catholic.  Can anyone suggest a cemetery where I may find the graves and is there some way I can locate the graves online before I go to Ireland? (I'm a dreamer!!)  Is there a way to find the graves once I get there??   Another town (townland??) name I have is Clendargan.  I know I'm grasping at straws here but I don't really know how to ask this question.  The family names I'm looking for are Fox and Smith.

Thank you in advance for any help.

Mary Todd

Florida, USA