The records show she was a much-sought-after public speaker, both within and without Adventist ranks. She was often the Sabbath morning speaker at General Conference Sessions, addressing thousands as she stood before them without notes, and she was a favorite camp meeting speaker season after season. TAWL 14.6
At evangelistic meetings in America and overseas she could hold her audiences, often largely non-Adventists, spellbound for an hour or an hour and a half, almost always speaking without notes. In 1876, before the day of electronic public address systems, she addressed some twenty thousand people who gathered at a camp meeting in Groveland, Mass., and made her audience hear. At the close of the meeting, she was invited to go into a nearby city the next evening to address a large temperance gathering in a public hall. TAWL 14.7