The Ott family letters (20 items) are made up of correspondence between Emil and Ida Ott of Milwaukee, Wisconsin, and their son Harvey. Emil and Ida Ott wrote the first 17 letters about their voyage to, and travels in, Egypt and Central Europe between January 29, 1911, and May 11, 1911. The Otts visited the Azores and Gibraltar during their outbound journey on the SS Celtic and then traveled to Egypt, where they described Cairo and, after a trip up the Nile River on the SS Ramses II, cities such as Luxor. They later wrote of their travels in Sicily, mainland Italy, Austria, and southern Germany. Their letters are written on illustrated stationery from the SS Celtic, which advertises the White Star Line's new liners Olympic and Titanic; the Shepheard's Hotel in Cairo; the SS Ramses II, operated by Cook's Nile Service; the Hotel Bristol in Vienna; the Hotel Sommer Zähringerhof in Freiburg; and the Hotel Messmer in Baden-Baden.
The collection also contains 3 letters that Harvey Ott wrote to his parents after their return to the United States. In a letter written around 1912, he commented on the assassination attempt on Theodore Roosevelt in Milwaukee, Wisconsin. In this letter and in his letter of April 26, 1913, he commented on his parents' health and encouraged them to rest and to consider a return to Europe, where he wished to join them. By the time Harvey wrote his final letter (July 14, 1914), Emil and Ida Ott had returned to Switzerland, along with Harvey's grandmother.
