whose character is not worth sketching

Now, you've got to stay and take a bite with me, and then we'll light our pipes and untangle this snarl.  No backing out!  I can do you more good than all the preachin' you ever heard.  Hey, there, Bill!" shouting to one of the paupers who was detailed for such work, "take this team to the barn and feed 'em.  Come in, come in, old feller!  You'll find that Tom Watterly allus has a snack and a good word for an old crony." Holcroft was easily persuaded, for he felt the need of cheer, and he looked up to Tom as a very sagacious, practical man.  So he said, "Perhaps you can see farther into a millstone than I can, and if you can show me a way out of my difficulties you'll be a friend sure enough." "Why, of course I can.  Your difficulties are all here and here," touching his bullet head and the region of his heart. "There aint no great difficulties in fact, but, after you've brooded out there a week or two alone, you think you're caught as fast as if you were in a bear trap.  Here, Angy," addressing his wife, "I've coaxed Holcroft to take supper with us.  You can hurry it up a little, can't you?" Mrs. Watterly gave their guest a cold, limp hand and a rather frigid welcome.  But this did not disconcert him. "It's only her way," he had always thought. "She looks after her husband's interests as mine did for me, and she don't talk him to death." This thought, in the main, summed up Mrs. Watterly's best traits. She was a commonplace, narrow, selfish woman, whose character is not worth sketching.  Tom stood a little in fear of her, and was usually careful not to impose extra tasks, but since she helped him to save and get ahead, he regarded her as a model wife.