The long a sound is how it would have been pronounced in Wisconsin. I should have realized that in Arkansas, it would have been a long o. I can underestand the Germans considered the oe to be an o with umlaut, and "Kewler" comes close to that.
And yes, my name changed spelling several times over the years, from Grantzow to Granzow to Granzo to Granzeau. Accent the first syllable, the eau is a long o.
[This message has been edited by Pete (edited 09-27-2010).]