See page 520 The Life of Mark Twain: The Early Years, 1835-1871:
In the spring of 1869, Mark Twain became associated with the Boston Lyceum Bureau, recently established by James Redpath. He promised Redpath ten nights in the state of New York, "provided the towns were close together, but for the most part intended to accept engagements only in the six New England states." In August, after purchasing a partnership in the Buffalo, New York Express, he attempted to cancel all engagements. Redpath refused. Finally, the tour "ranged up and down the coast from Maine to Washington D.C. and throughout New York State and eastern Pennsylvania. And since Redpath had managed to book many of the lectures with Boston as a hub, Mark Twain was able to maintain his room at Young's Hotel and return there almost nightly to be with friends and spend pleasant hours visiting in Redpath's bureau. What pleased him no less was the fact that the tour included nearly all the large cities in the entire area." (Lorch pp 99, 103, 105).
November 1 - January 21, 1870 Lecture Tour: At least 49 engagements - "Our Fellow Savages of the Sandwich Islands" Under the management of James Redpath.