Fund-raising is ongoing to cover the costs of building a planned Arctic Convoy museum near Loch Ewe.
BBC: Medal ceremony in Wester Ross for Arctic Convoy sailors
The ewe's birth in 1996 set off a firestorm of debate about the technology used to create her.
This week, Mr Dempster had been due to display his medal at a special commemoration at Loch Ewe.
More than 40 veterans are expected to gather at Loch Ewe in May.
The scientists looked in Loch Broom, Little Loch Broom, Loch Gairloch, Loch Ewe, Gruinard Bay and the Summer Isles.
Their ships sailed from Loch Ewe in the north west Highlands to re-supply the Soviet ports of Murmansk and Archangel.
All the veterans are about 90 years old and include Jock Dempster, from Dunbar, who has made frequent visits to Loch Ewe.
In Dolly's case, those cells were allowed to continue developing into an embryo that was then transferred to a ewe to produce a cloned sheep.
Often this is the third in a set of triplets which is more than the ewe can accommodate with enough milk to ensure healthy growth.
BBC: Wroxham Barns' supply of lambs hit by Schmallenberg virus
Between 1941 and 1945, merchant ships left Loch Ewe - as well as the Clyde and ports in Iceland - to deliver supplies, weapons and ammunition.
BBC: Medal ceremony in Wester Ross for Arctic Convoy sailors
Between 1941 and 1945, merchant ships left Loch Ewe in Wester Ross as well as the Clyde and ports in Iceland to deliver supplies, weapons and ammunition.
They stay alive for only six to ten hours after ejaculation, so a stud ram from Wales cannot easily inseminate a Scottish ewe without going to meet her.
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