Try
Callahan's Crosstime Saloon by Spider Robinson and, in the same vein, Sterling E. Lanier's Brigadier Ffellowes stories.
http://www.amazon.com/Callahans-Cros...=UTF8&sr=&qid=
http://www.amazon.com/peculiar-Explo...0237880&sr=1-3
(the bad reviews seem to be for errors in the ebook, not for the book itself)
Also Alexei Panshin's three Anthony Villiers novels have been collected and published as
New Celebrations: The Adventures of Anthony Villiers.
http://www.amazon.com/dp/B004I6EIPK/ref=cm_sw_su_dp