His grandson Sir Harcourt Vanden-Bempde-Johnstone, 3rd Baronet, was raised to the peerage as Baron Derwent in 1881.
His great-grandson (or more accurately, his grandson) Sir Harcourt Vanden-Bempde-Johnstone, 3rd Baronet, was elevated to the peerage as Baron Derwent in 1881.