Hi Elinga,
I have two Strachan's the first was prisoner 3201 John Strachan who died at Tilbury Fort Essex. I do not have a date for his death but by 11th August 1746 the prisoners (on the list that I have) were incarcerated at Tilbury and a month later it is noted that 45 of them had died, one of which may well have been John Strachan.
The second Strachan that I have is a James Strachan who was noted as being a 19 year old student attending Aberdeen University who was serving in the Duke of Perth's regiment when captured. He, unlike John Strachan, was held at the following place's, Stirling, Leith, Cannongate and Carlisle. The list that I have where James appears is in regards to Jacobites who were banished to the America's aboard the ship Gildart however it does not make it clear if James was on board nor is a date given, one can only assume that he was on this ship.
As for MRorie, there is no one listed by that surname but I do have a Donald M'Rory who is listed on the Tilbury Fort roll as being prisoner 2427. The rest of the information for what happened to him just states "not known".
OR