Origin of Drummond light
1835–45; named after Capt. T. Drummond (1797–1840), British engineer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for drummond light
"torch that burns calcium oxide (lime) and gives off intense white light," 1854, named for Scottish engineer Capt. Thomas Drummond, R.E., (1797-1840), who invented it c.1825.
Online Etymology Dictionary, © 2010 Douglas Harper