Clarke, Alexander, an English minister of the Society of Friends, in the 17th century, was converted in early manhood, but, not satisfied with the churches which he frequented, united with the Quakers, and, after a time, began to preach. For forty years lie labored diligently for his Master, and was instrumental in accomplishing great good. He died in the seventy-fifth year of his age. See Piety Promoted, ii, 126, 127. (J. C. S.).