No, you can't sell cuttings of Dick Clark as Kansas Sunset and pretend it's a completely different rose,, but you can sell Dick Clark and copyright the name Kansas Sunset for it, as long as you pay royalties to the breeder of Dick Clark. Roses are patented. That's a different thing from copyrights and trademarks.
The handbook does not have the specific information you're seeking. It has even less information about important characteristics (such as petal count or alternative names) than our ATP database. It mostly provides information on nurseries carrying the roses, but that information is often useless, as I explained in my post. I wish I could find mine, so I could give you an example of a typical listing (name, class, color category, hybridizer, year of introduction, and codes corresponding to nursery names and addresses). I actually suspect I gave it away (or threw it away) because it was so useless to me. There are no photos of roses and not much in the way of description.
Aloha's actually easy to identify. We have three listed in our database. You can safely ignore the listing for the yellow Kordes hybrid tea because it's very hard to find, especially on this continent. That leaves the two climbers. The Boerner climber is medium pink, and the only color variations are slightly lighter or darker shades of pink. The Kordes climber is an apricot blend. It does produce some pink blooms, but it also produces blooms with blends of apricot, yellow, white, and pink. There's much more variation in the blooms, and most of the Kordes Aloha blooms have fewer petals than the Boerner Aloha blooms.
The lack of parentage info in the Rose Database really bothers me. When I was filling in the details for more than 6,000 roses, we had no data field for parentage. Now a parentage data field has been added to the database and I have to go back and add the parentage for each rose. It would have been so much simpler to do it from the start. I'd appreciate anyone's help in adding this information to our rose entries.