Hello. I dont know how far you are in your searching, but I know a lot about this family. Please have a look at www.muus.se
. The website isnt translated very much, but please fell free to contact me by the email address-button you can find there. I am missing the history and family of Karl Martin Muus from he left for USA. Maybe we can help each other to update this. I also have a familytree at www.myheritage.com
but we can talk about that later. Looking forward to hear from you.