Found this on another site, not sure of its accuracy.
Not being a member, the site blocked me before I could get any more details.
"I'm sure this has been done to death already but I would like to share with the group a little bit of research I turned up when investigating 25B/1321 Pte Edwin Alabaster as I have his medal. He was one of 4 men to enlist in the 25th Brigade at Bow Street Police Court during a couple of days of February 1877. They were sent down to Brecon Depot and joined the 2nd-24th. The other 3 men were Rorke's Drift defenders Bessell, Robinson & Mason. Alabaster was with one of the companies that left Isandhlwana camp with Chelmsford in the early hours of the 22nd. He was awarded his first good conduct pay in February 1879 when the battalion were repairing Rorke's Drift. He was discharged as medically unfit in May 1883, but saw home service with the Royal Defence Corp in WW1 and died at Southend on Sea in 1919. The 24th (2nd Warwickshire) Regiment of Foot did not become the South Wales Borderers until the the Childers Reforms of 1881."
Another link on our forum herehttps://www.1879zuluwar.com/t517-two-generations-of-soldiers?highlight=alabaster