Three Men In a Boat

There really is not too much about her in the text. Here is the quote:

The grocer's was full. An old woman we met in the shop then kindly took us along with her for a quarter of a mile, to a lady friend of hers, who occasionally let rooms to gentlemen.   This old woman walked very slowly, and we were twenty minutes getting to her lady friend's. She enlivened the journey by describing to us, as we trailed along, the various pains she had in her back. Ch 12