Early Life
Archibald was born around 1747.
Death
Archibald died on the 25
th of September 1774, aged 27. From
The Scots Magazine, Volume 36 (1774) page 503:
Archibald Murdoch, Esq; younger of Gartincaber, Mr Maclean of Coll, Mr Fither from England and Mr Malcolm Macdonald [dr?]over in Mull, with five attendants, unfortunately drowned in crossing a ferry in the Isle of Mull. Mr Murdoch had gone to Mull on a visit to Mr Maclean of Lochbuy; and having dined in a friend's house, the melancholy accident happened in their return. The barge overset within a gunshot of the lands of Ulva and Mull. Mr Maclean of Lochbuy, and three young men in the barge, having got hold of the mast, continued dashing in the waves for three quarters of an hour, and were saved by the ferry-boat of Ulva, which reached them just as they were ready to sink.
According to O_BurnMurdochScrapbook_02 (probably written by Annie Jessie Burn-Murdoch):
[There is a] mourning ring at Gartincaber: sea weed on green stone and edged round with small garnets. Inscription inside: "Arch. Murdoch obit Sept. 1774 aged 27"
He died unmarried.