Help Needed in Co. Cork!

Hello, My Ancestors, the Sheehans at least came from Mallow, Co Cork, I'm wondering if there are any Gravestones for my Relatives? It might start w/my GGg'father, Patrick Sheehan & his Wife, my GGg'mother, Joanne/Joanna Regan, Theyre as far back as I;ve been able to get on my Sheehan Line! Learning the Dates & any other Facts about them & their Fammilies, Roots would be Fantastic! My Gg'parent Sheehans were John Timothy Sheehan & Mary Maher, Mary died over here in Malden, MA, along w/her Father James & some of her Siblings! I need to get Someone to look for her, her Fathers & Siblings Gravestones. I'd do it Myself, but I'm no longer mobile, due to  having broken both of my Hips in a 5 year period! John T. died in the Cork City Workhouse in 1882 of Pneumonia, were the People, who died  in the Workhouse buried there, or returned to their Home City/Village? I don't know, if Mary Maher's Family is from the Mallow area or not, but any Gravestone info about her Family would also be very much appreciated! My Ggparents were John Joseph Sheehan & Helena FitzGerald, he was born in Co. Cork,  in either Mallow or Dublin? Don't worry about him, he's buried along w/his Wife, Helena in St. Mary's RC Cemetery in Salem, MA, USA. Bur helenna was supposedly born in Skibbereen in 1863/5. I don't know, if her Family came from the Area around Skibbereen or Mallow again? Her Parents, my GGg'prents Mal were John Thomas FitzGerald & Jane Anne Leonard, they lived & died in Ireland! Mallow, Skibereen, Cork City? Any info. on the Leonarf Family would also be appreciated, I know Noting about them, but her Name & that she died before 1908 of Dropsy, because her Husband, my GGg'father then went to live w/One of his married Daughters, Mary FitzGerald O'Driscoll, Wife of Thomas O'Driscoll, I'm assuming in Cork City, where he lived until he died in 1908! Their other Children, Helena & Jeremiah J. FitzGerald came to America, but the Other Siblings stayed in Ireland. Katherine (Kate) Fitzgerald (4/13/1865-aft1900), William FitzGerald (5/5/1869-abt1910), Mary FitzGerald O'Driscoll (1869-aft1911), Jane Anne FitzGerald Joyce (9/24/1870-abt1930), John FitzGerald (9/24/1870-bef1920) & Mary Norah (Hanorah?) FitzGerald Joyce (7/4/1872-abt1900). That's ALL that I have! Thanks for Any & All Help! Be well, Jack MacDonald-Hilton.