This one/ that one

This novel is set in a Chinese village before World War One.
Today is the protagonist Wang Lung's wedding day.
His bride-to-be prepared some food for the feast. There are nine persons there.

"Eat, my uncle and my brothers." And when the uncle, who was fond of jokes, said, "Are we not to see the moth-browed bride?" Wang Lung replied firmly, "We are not yet one. It is not meet that other men see her until the marriage is consummated."
And he urged them to eat and they ate heartily of the good fare, heartily and in silence, and this one praised the brown sauce on the fish and that one the well-done pork, and Wang Lung said over and over in reply.
"It is poor stuff?it is badly prepared."
[The Good Earth by Pearl S. Buck]
I'd like to know if "this one" refers to a person sitting next to Wang Lung and "that one" refers to a person sitting away from Wang Lung.
Thank you in advance for your help.