I have received my copy of the marriage certificate for John Hunt and Margaret. Her name is given as Margarita Hinds. They were married int he Catholic chapel of Mt. Temple, Registrar's district of Moate, Superintendent Registrar's District of Athlone, Westmeath on 7 May 1870.
John Hunt, 25, bachelor, laborer, resident of Knockaner, father John Hunt, laborer.
Margarita Hinds, 22, spinster, laborer, resident of Ballymurray [sic], father Daniel Hinds, blacksmith.
Witnesses: John Hunt (assume this is his father) and Ellen Hinds (probably her sister?).
Given this I searched Griffiths on Ancestry and found:
John Hunt, townland of Tubbrit, parish of Kilcleagh, barony of Clonlonan, Westmeath. (Their daughter Mary' Anns birth record on FamilySearch says Quitbrit -- the nearest I could find for this is Tubritt so this reinforces the location.)
Daniel Hynes, Ballymurry, parish of Ballyloughloe, barony of Clonlonan, Westmeath. The marriage certificate says Ballymurray, but I've checked several references and and the standard modern name appears to be Ballymurry.
Can you tell me more about Martin?