Yet more from the last-minute Smashwords sale trawl:
Madeline Baker (historical & western romance, backlist republished by Ellora's Cave Blush imprint) offers a novel free with coupon and 25% off selected works
Troy D. Smith (has had stories appear in Louis L'Amour Magazine) offers a western/horror short free with coupon and 50% off a western/drama novel
John D. Nesbitt (western, published by Dorchester/Leisure) offers a story free with coupon and selected novel-length works seem to be $1.99 or less
I don't feel like checking through the rest and linking to individual profiles, so I'm just going to point to the above few authors' republisher,
Western Trail Blazer, which looks to have a goodly selection of established authors in the western and western romance genres and are offering several items free with coupon and a number of sale titles from 25-75% off, from the looks of it.
(ETA: Also some free to download and free with coupon shorts from the same authors via R
ebecca J. Vickery Publishing, which is apparently the parent imprint.)
Janice Daugharty (southern literary fiction, published by Bell Bridge Books & HarperCollins; we've gotten official freebies from her in the past) offers a short free with coupon and 75% off her 1996 backlist novel