Rev Thomas Crawford

I am looking for a Rev Thomas Crawford and to complicate matters there are 2 of them the one I'm looking appears to have died in 1815 he married Elizabeth Griffin in 1782 in Elphin Roscommon. This is the list and my Rev Thomas Crawford is the first one, i have researched the other two just in case there was a link but i am unable to find one.

Elizabeth Griffin is the niece of Catherine Griffin who married George Simpson, George was the very very wealthy merchant who set up Simpsons hospital in Dublin.

There is an interesting story, in George Simpsons will he leaves a £1000 each to the nieces their inheritance is dependant on them seeking and gaining approval of their marriages from his wife Catherine Simpson nee Griffin, for whatever reason Elizabeth Griffin married Rev Thomas Crawford without this permission and gave up inheritance. A £1,000 in 1782 would have ben worth today around £216,000, love before money !!!!!