Hi Virginia, There is a horse on Dreamhorse called Stigandi who might fit the bill. Both his previous owner and his current owner have some physical issues and needed a very quiet horse who would stand still for mounting etc. His current owner, Gale, is a member of this list and could likely tell you all about him. She brought him to the US from Canada.
http://www.dreamhorse.com/show_horse.php?form_horse_id=1093705 Good luck! Trish
