Hi Bill (and welcome to RootsChat)
I checked the Tradesman's Index of the book, and could find no SAUNDERS, including 18 names listed as shoemakers.
The only SAUNDERS listed in the General Index was for Jimmy SAUNDERS;
"Long Jim SAUNDERS (4 others also named and described), the post boys, dressed in yellow jackets, buckskin breeches and boots, were seen chatting and joking with the chambermaid, or taking their morning draught of hot ginger". Also, "As you turned into North Street, the first house was the Castle Tap, which was frequented by coachmen, guards, postboys and market people. This Tap was kept by Jim SAUNDERS, who went to the tap so often that at last Death tapped him upon his shoulder".
I could find no mention of the surname GARLAND.
Paul's Meeting House was mentioned - "All the Churches and Chapels have undergone great alterations both inside and out. Paul's Meeting was a plain substantial looking edifice, far superior to the present nondescript. The inside was plain and simple, and the dress of the congregation corresponded. They had a worthy pastor in the person of the Rev.T.LUKE".
Remember, this book was written in the 1880's using the author's memory of the 1820-30's, so there is a possibility he just doesn't remember your SAUNDERS?
Les