Add another Website to my Professional site

I have another website that I bult for my father Robert Bowman. He was a WWII pilot for the Navy. His webaddress is navypbm5bowman.homestead.com/pbm5
I want to add his site to my professional site to maintain it. There is a Navy Museum in Ottumwa iowa that wants to be able to view it from time to time and many other retired Navy vets and their families. Would you please assist me in getting this site up and running again.
Carolyn Jo Snow
askcarolynjo@gmail.com