John N. Holloway, History of Kansas — Chapter 3 (1868)
“ Slave-breeding for gain, deliberately proposed and systematically pursued, appears to be among the late devices and illustrations of human depravity. Neither Cowper nor Wesley, nor Jonathan Edwards, nor Granville Sharp, nor Clarkson, nor any of the philanthropists or divines, who, in the last century, bore fearless and emphatic testimony to the iniquity of slave-making, slave-holding and slave-selling seemed to have had any clear conception of it. For the infant slave of the past ages was rather an encumbrance and a burden, than a valuable addition to his master's stock. ”
