This listing is found in Chronology of Speeches but is given as November 12 in Touring with Cable and Huck
The Lowell Daily Courier published a review of the show on November 12, 1884, thus establishing the date of the show as November 11.
November 11, 1884: DBD
November 11 Tuesday – Sam and Cable gave a reading in Huntington Hall, Lowell, Mass. Clemens included “Toast to Babies,” and “Encounter with an Interviewer” [MTPO].