[3] He said that the entire train had fallen vertically down when the High Girders collapsed, from the impact marks the wheels had made on the lines.

The evidence helped disprove Thomas Bouch's theory that the train had been blown off the rails by the storm that night.

In April 1890 he tendered his resignation to enter business, establishing the Australasian Locomotive Engine Works at Sydney, Australia.

He also encumbered many of his LSWR engines with innovations which he had patented himself, such as firebox cross water tubes, and his smokebox steam drier, which only gave a very small degree of superheat.

After his death, his successors improved the performance of many of his engines by fitting them with conventional smoke tube superheaters.

In addition to his post at LSWR, in 1895 Drummond was appointed as Locomotive Superintendent to the National Rifle Association, with responsibility for rolling stock on the Bisley Camp tramways.

However C. Hamilton Ellis states that he had got cold and wet and demanded a hot mustard bath for his numb feet.

He is buried at Brookwood Cemetery, which is adjacent to the LSWR mainline, in a family grave just a stone's throw from the former terminus of the London Necropolis Railway.