Great Grandfather

I am trying to find a grave/headstone of my Great Grandfather Edward Lawler although he died in Kiltegan County Wicklow with the address as HUMEWOOD which is a large estate where he was a coachman, he also had links to Moylisker as my Grandmother was baptised at the church of Moylisker in 1897( I have the original certificate)  I wondered if it was possible he is buried here as I can not locate any information at The church in Kiltegan linked to the Humewood estate,he died on the 28th December 1922 aged 58 which is after the fire at the records office but I can not find any information about his burial place.  I have found him and his wife Mary Jane Lawler and their 10children in the 1901 and 1911 census's and their actual address is stated as Lynn Belvedere Westmeath. If anyone can suggest anything on how to locate graves or if anyone in the area could check or send me a webpage of the  church in fact anything would be a help, I would be very grateful, I plan to come to Ireland to search myself in 2015 in the mean time I carry on on the internet! Thanks Janet heasman