I have a friend who named 3 brothers (horses) after the Earp boys. Wyatt, Vergil and Morgan. I love those names, If you arent familier with them they are American old west lawmen. I also like Lucky as he is lucky to have you :) On the same line of American west names if you wanted to stay with a J there is Jessie James and John Wesley Hardin (John Wesley for short) Judge Roy Bean (Judge for short).
"Until one has loved an animal, part of one's soul remains unawakened..."
- Anatole France