Would you have any information on a James MacKreith?
Only some information to go on:
 - fought in battle of Dunbar (age ~20, not captured)
 - fought in battle of Worcester (age ~21, caputred)
 - sent to New England on the ship John & Sara (departed London, 8 November 1651; arrived Boston, 1652)
 - served indentured servitude in New England until 1660, began paying taxes in the new world in 1661
 - Other possible surnames: Maceraithy
 - Possible family residence at the time: Hebrides?
...fabulous topic
Alan