An Orderly
You'd simply call them by their name if you knew them or some other general term Mr. Mrs. Ms. whatever you use for other people. Just because they are in a wheelchair doesn't mean you have to refer to them as "wheelchair person" Or whatever. They are still people.
A person who wanders around with no home is commonly referred to as a nomad or a vagabond.
I suppose you call him a chauffeur?
ramp
A person can find a wheelchair hoist at Spinlife. When in the site, a person should go to the Wheelchair Lift Store, and pick out the lift that's appropriate for them.
virgin mobile
Users toxic
a person who studies people but not an psychologist
attendant.
a hypnotist
Mexican
comparative person