Hi Maryhutching,
Welcome to Ireland Reaching Out.
Did they have a sister called Julia?
There is a marriage in 1897 this is the link.........3rd down No.247
https://civilrecords.irishgenealogy.ie/churchrecords/images/marriage_re…
Says, Edmund is still alive.
In 1911 there is this Census record of Julia aged 86 and a widow, she isn't listed in the 1901 Census.
http://www.census.nationalarchives.ie/reels/nai002545066/
If you use this site, you will be able to match the names, there is a John and an Edward listed as head of family. They must be the brothers.
http://www.census.nationalarchives.ie/search/
So with all the above info Edmund must have died some time between 1897 and 1911.
This site has births up to 1916, deaths up to about 1960 amd marriages not sure.
https://www.irishgenealogy.ie/en/
Cannot see the deaths.........
BUT
This is Julia's birth No. 476
https://civilrecords.irishgenealogy.ie/churchrecords/images/birth_retur…
If you follow Julia's marriage then use familysearch.org you will follow on to find births as they have Ireland births up to 1958. (I am listed)
Margot