At least 65% of the people seeing my last name "Adler" pronounce it as "Alder" and maybe 10% as "Atler". I was telling a friend who has a Sailboat using "Adler/Barbour refrigeration" about this and he said "'Alder'
like in my refrigeration?". He was not joking, for 20 years he thought it was "Alder" not "Adler". Now there has to be a reason that so many people have trouble with this and I would love to know what it is or where to find the answer.