Kevin McKee and Seamus Wright will be laid to rest next week.
The remains of two members of the disappeared were formally identified this week.
They were found by the Independent Commission for the Location of Victims Remains this summer in Coghalstown bog in Meath.
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Kevin McKee will be laid to rest alongside his mother in Belfast on Monday, while funeral service for Seamus Wright will take place on Tuesday.
A search for Joe Lynskey is continuing close to where the two men were found in the reclaimed bog.