"Minugh" is the only spelling I have ever seen. It is pronounced: min-you. The "i" in the first syllable is a short "i" sound. The men in the family were (and some still are) mariners, sea captains, traders, sailors, fishermen. Current men are US Coast Guard officers. I know we hail from the UK, but have NO idea if we are Irish, Welsh, Scots, or English.