July 14 Thursday – On or about this day the SS. Lahn reached Bremen. Shortly, Sam continued on to Bad Nauheim to rejoin Livy.
August 5, At the Kaiserhof Hotel in Bad Nauheim, Germany, Sam wrote of ... a bit of traveling the past few days, without specifics,
June 13 Monday – Sam left Bad Nauheim alone and traveled to Bremen, Germany, where he would take passage the following day for New York [June 12 to Fiske]. He took a room ath the Hotel de l’Europe in Bremen [NB 31 TS 53].
Sam’s notebook: “Arrived here at 5.23 June 13 — left Nauheim 9.05 a.m.” [NB 31 TS 53].
June 14 Tuesday – In Bremen, Germany Sam left Bremen for New York in the steamer Havel.
Bremen to New York: Havel
June 2 Thursday – Sam’s notebook in transit from Cadenabbia to Lucerne.
June 3 Friday – The Clemens family rested in Lucerne, Switzerland [NB 31 TS 50].
June 4 Saturday – Sam’s notebook: The Clemenses proceeded on to Frankfurt, Germany, where they took rooms at the Schwan Hotel [NB 31 TS 50].
June 5 Sunday – The Clemenses rested in Frankfurt, Germany at the Schwan Hotel [NB 31 TS 50].
March 24 Thursday – Sam and Livy left Menton for Pisa, Italy with Joseph Verey, their courier.
March 25 Friday – Sam and Livy were in Pisa, Italy. Sam’s notebook lists the Eden Hotel:
March 26 Saturday – Sam and Livy were in transit from Pisa to Rome, Italy.
March 27 Sunday – In Rome, at the Hotel Molaro, for "a charming five weeks."
The route plotted is my best guess based on 5 geographic points: Berlin, St. Gottard Pass, Milan, Genoa, and Merton. Information that the Clemenses passed through St. Gottard Pass, Milan and Genoa come from personal correspondences.
October 9 Friday – In their winter quarters at 7 Körnerstrasse, Berlin,
Osnabruck, Oct. 28. — The seventieth anniversary of the birthday of Rudolph Virchow. Sam’s version of events from his sixth Europe letter for McClure’s Syndicate, entitled, “German Chicago”:
December 18 Friday – Sam left Berlin with William Phelps and traveled 125 miles south to Dresden
December 19 Saturday – Sam may have stayed overnight in Dresden or returned late Dec. 18.
September 30 Wednesday – At Arles, France
October 1 Thursday – In Nimes, France at the Hotel Manivet,
October 2 Friday – Sam and Joseph Verey left Arles for Avignon, France [2nd letter to Livy, Sept.28; NB 31 TS 7]
October 3 Saturday – Sam’s notebook: Avignon. Oct. 3.—leaving, 11 am.
Sam also wrote an account of the trip he called “part diary and part comment,” titled, “Down the Rhône,” which was first published in 1923 in Europe and Elsewhere. The account begins on this day:
Scott, Arthur L. “The Innocents Adrift Edited by Mark Twain's Official Biographer.”
September 5 Saturday – Sam’s noteb
“They returned to Germany at the end of August, to Nuremberg, which he notes as the ‘city of exquisite glimpses,’ and to Heidelberg, where they had their old apartment of thirteen years before, Room 40 at the Schloss Hotel, with its wonderful prospect of wood and hill, and the haze-haunted valley of the Rhine. They remained less than a week in that beautiful place, and then were off for Switzerland, Lucerne, Brienz, Interlaken, finally resting at the Hotel Beau Rivage, Ouchy, Lausanne, on beautiful Lake Leman” [MTB 923]. (Editorial emphasis.)