I am the great, great, great granddaughter of Neils Ditlev Ytting and have some information on his life if you are interested (including his parents and grandparents). However, all I know of Ditlev's siblings is that Pouline (at 18 years old) left for Koldiing in order to be in somebodies service. I do not have any information on the other siblings - Sorry.
Please let me know id you get any other information as I would be interested as would my grandmother who is 92 on 22 December.
I hope this has been of some help.
Keryn Sturrock (nee: Harris)