Appletons' Cyclopædia of American Biography… (1900)
“ In Africa he built the first fort at Mesurado, in Liberia. He was ordered to command the West India fleet in 1826, but died before sailing.—Capt. Spence's sons, Carroll and Charles Lowell Stewart, were afterward in the diplomatic service of the United States, the former being minister to Turkey under President Pierce, and the other secretary of legation, and afterward envoy to Persia. ”
