OK Judy, Uncle Howard has the proper WW II sticker. The Problem was there was no category for the USS Lake Champlain for conflict specific WW II. The category you had is for non conflict service on the ship. All taken care of.
As to a Plank Owner Category, I think this is best taken care of in his Biography. To create a Plank Owner Category, each US Navy ship ever commissioned would need to have a separate category and this tends to lead to over categorization. Some data points are just best left to the Biography.
Having said that, you may want to re-tag your question with the tags:
military and war categorization and world war II
These tags will get the attention of the folks on the Military and War Project who oversee your type of request. Get the answer from the horses mouth and not from me, the other end of the horse. LOL