Quiz me quick - Karen Bush

It's that time of year when quizzes and presents abound - so I thought I might combine the two in my post this month. 

I have donned my festive Quiz Me Quick hat and set a few brainteasers for you: should you feel like participating, I am awarding either a copy of any one of my e-books or a gift-wrapped copy of the paper edition of Everything Your Dog Expects You to Know (I'll pay UK postage) to the winner of each category. The person with the most correct answers in each category wins - in the event of a tie, the names will go in a hat.
Don't post your answers here, but email them to me via the contact page of my author website HERE, where you can also find details of my ebooks.  The deadline is 8th January and the winners will be announced on my blog post here on the 10th.

The Questions!

Which authors wrote books in which the following horse or dog characters appear? You get the idea: there's a horse or dog theme as that's what I mainly write about ... You can either do the dog questions, or the horse ones, or if you are feeling really energetic, enter twice by doing both categories. 

HORSES (oh alright, so two are donkeys and another is a unicorn)
1. Ginger, Merrylegs and Captain 
2. Bucephalus the Great Horse
3. Black Boy and Rapide
4. Cascade and Siani
5. Roan Barbary
6. Flicka and Thunderhead
7. Fledge, Bree and Hwin
8. Mancha and Gato
9. Findhorn
10. The Maltese Cat
11. Shadowfax
12. Shantih
13. Joey
14. Modestine
15. Binky
16. Violetta 
17. Boxer, Molly and Clover
18. Rocinante
19. Whinney, Racer and Gray
20. The Pie

DOGS (and a couple of wolves)
1. Montmorency
2. The Disreputable Dog
3. Nighteyes
4. Bullseye
5. Winn-Dixie
6. Scraps, Gaspode and Laddie
7. Widdle and Puke
8. Cadpig
9. Cuddy and Svart
10. Wolfie
11. Wag
12. Boogie
13. Jim and Jess
14. Rowf and Snitter
15. Timmy
16. Fluffy and Fang
17. Charley (poodle)
18. Buck and White Fang
19. Chiquitito
20. Crab