The most significant event to occur at this graveyard took place on 2 July 1757 when William Martin was the first minister to be ordained in Ireland by the Reformed Presbyterian (or Covenanter) Church. In 1772, Martin led 1,000 people in a mass emigration to America. The majority settled in Rocky Creek (now in Chester County, South Carolina) where Martin opened a new church in 1774.

Stone at Vow to commemorate Reverend William Martin