1 Oct 1867 Staff Assistant Surgeon.
22 Dec 1869 Assistant Surgeon 92nd (Gordon Highlanders) Regiment of Foot.
1878–1880 Served in the Afghan War.
1 Oct 1879 Surgeon-Major.
Oct 1888 Served in the Bombay command. On general duty in the Pooma District.
1 Oct 1887 Surgeon-Lieutenant Colonel.
4 Nov 1893 Brigade-Surgeon-Lieutenant Colonel.
Malta 9 Nov 1894 Arrived from England.
Malta 1895 Officer in charge Valletta Station Hospital.
Malta 1896 Officer in charge Valletta Station Hospital.
Resident at the Imperial Hotel Sliema.
Letter from GOC Malta General Sir Arthur Lyon Fremantle said that Frederick Lyons ought not to be promoted as he was below average for his rank, wanting in zeal. His health has been impaired. (Confidential Report Dec 1896 PMO and GOC Malta.)
Malta 22 Feb 1897 Resident at the Imperial Hotel Sliema. To Colchester on sick leave.
13 Oct 1897 Retired.