Martina and Amni Burke were taken into custody in late March.
Enoch Burke's mother and sister have completed their two week prison sentence for contempt of court.
Martina and Amni Burke were arrested at the end of March while visiting the jailed schoolteacher in Castlerea Prison.
Justice Brian Cregan ordered their arrest for what he describes as "venomous interruptions" at a High Court hearing in February.
The Irish Independent reports the two women shared a room with no other inmates at Dublin's Dochas Prison Centre and presented 'no problems' during their sentence.
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