I admittedly don't know much about Mayo geography and townlands so I immediately went to www.seanruad.com to see if anything came up.  It's a bit of a stretch but how about "Lenarevagh" in Mayo?  While nothing comes up when checking Leaheriven on the seanruad.com site, you might want to play around with the spelling a bit and see if you can locate a townland that sounds like Leaheriven.  Hope this helps a bit. Kim ________________________________ Date: Sun, 05 Feb 2012 18:06:24 -0000 From: "[email protected]" <[email protected]> Subject: [IRL-MAYO] Place name help -- Leaheriven Hello, I recently found my great great grandparents marriage record -- Civil, County Mayo, Ballinrobe; 12 Feb 1877. John Curran to Catherine Walsh. I knew my great-grandfather's family (Curran) came from Cloongowla, Ballinrobe. However, the marriage record gave me a new piece of information. Catherine Walsh's address is listed as Leaheriven. I have never heard of this place name and apparently, neither has google. Anybody have any advice or information? Thanks!