One Ernst Arthur F Leybold had businesses in the Seattle area in 1917. He was from Bonn/Koln and is probably related to the famous industrial family in some way. I would like to find biographical information about him. In 1917 he was in his early 30's and engaged to Augusta Deckman. He returned to Germany in 1919 after the war. I am writing a book with him as a character and I only have what he did in 1917-19. I am seeking any information on him.
Thank you.