The reason you might be having trouble finding Deiss in Gemany is that it was Theiss/Theis when in Germany and When the came to America it was changed due to pronouncation(spelling again)...to Deis...Deisz, Dies Dice, Tice, etc........mine finally became Dice....but their are many different changes...if you find anything don't for get me....I am hunting also...I have alot on my GG Grandfather Augustus Deis/Dice in Indiana...but boy has it taken time...and I think he ended up dieing in Montana...still hunting on that....Nancy Dice Baker