Dottie, the "King of All Chairs" in this instance (as long as he doesn't need a power lift to get him in and out of the chair) is the Hancock and Moore Austin Tilt Back Chair and Ottoman. This chair is routinely voted as "The Most Comfortable"
by the vast majority of customers who come in my store, and is the top selling motion piece at H&M.
http://www.hancockandmoore.com/produ...productid=1678
He won't need the High Back Model at 5' 6", and H&M will put heavy-duty springs and internal cushions in at no extra charge upon request to accommodate his weight. Buy the chair in a grade 1 or 2 leather, and you'll be good to go.