On 23 Mar 1879, South Africa, Lower Tugela. 'A', 'B', 'D', 'F', and 'G' Companies formed part of 1st Division of Etchowe Relief column. Strength 15 Officers, 34 Corporals and 368 Men.
On 29 Mar 1879, South Africa, Lower Tugela. 'A', 'B', 'D', 'F' and 'G' Companies (part of relief column Advance Guard) moved off for relief of Etchowe. Laagered at Inyoni River
On 30 Mar 1879, South Africa, Inyoni River. Five companies of 99th,still part of Advance Guard, continued march; laagered on right bank of Amatikulu River
On 31 March covered crossing of river by column. Laagered on left bank. First sight of enemy in distance.
On 1 April as part of rear guard. Column marched to Ginginhlovo and laagered. Enemy fires sighted in all directions
On 2 Apr 1879, South Africa, Ginginhlovo. 6a.m. outposts (including 'F' Company on west face of laager) driven in column attacked by 10,000 Zulus. Engaged for one and a quarter hours. Repulsed and routed with loss of 671 killed (column casualties 11 killed 62 wounded. 99th casualties one Officer and two privates killed and four privates wounded)
On 4 Apr 1879, South Africa, Fort Etchowe. Fort evacuated marched for Lower Tugela. Reached and bivouacked for night in entrenched laager at Red Patch Kraal
On 5 Apr 1879, South Africa, Red Patch Kraal. 'C', 'E' and 'H' Companies (part of Etchowe garrison) formed Advance Guard on a march to Amatikulu River. Bivouacked three miles north of river.
On 6 Apr 1879, South Africa, Amitikulu River. 'C', 'E' and 'H' Companies as Rear Guard, marched to Umsundusi River. Reached till 9pm. March resumed. Arrived St Andrews Mission Station at 2 am. Bivouacked.
On 7 April Marched resumed. 'C', 'E' and 'H' Companies reached Lower Tugela at noon. Encamped on extreme left of Lower Tugela camp
On 8 Apr 1879, South Africa, Ginginhlovo. Five companies ('A', 'B', 'D', 'F' and 'G') of 99th left at 3am and marched for Lower Tugela arriving at 10pm. Rejoined 'C', 'E' and 'H' Companies.