First of all, let me welcome you to the Scrooge McDuck Wiki! I truly hope you enjoy your time here. I wanted to message you to ask about the Hortensia Gadwall page you created. I've heard of the character before but know very little about her. I'm interested in matters of Duck family trees and would like to know what all you know about the character. Do you remember which story referred to her as "Hydrangea", or was this some sort of autocorrect mishap? Also, what makes you think she was born in 1818? I don't doubt it, I'm just curious to know your source.
Once again, welcome to the Wiki! I hope you continue to contribute and edit as much you'd like to. God bless.