The funerals of Dessie Byrne and his sister Muriel Eriksson will take place at noon today.
Father-of-two Dessie died trying to rescue his sister Muriel when she got in to difficulty off Ballybunion beach in Co Kerry last Thursday.
Mr Byrne's teenage son, who was on the beach at the time, is believed to have witnessed the tragedy.
Originally from Athlone, Mr Byrne and his partner, Paulette, had been living in the village of Lecarrow in Co Roscommon for more than 20 years.
His sister had been living in Malmo is Sweden.
Local Roscommon Councillor Laurence Fallon who knew Dessie Byrne said the community is still numbed by the tragedy...