Dozens of Old Photos, but who do they belong to? Any ideas?

Having spent about four days worth of research on these Old Photos it’s time to give in. Have I missed something, so if you have any ideas or inspiration I would love to hear from you!

Maiwand 1880 by BSM William Paton

An account of Maiwand 1880, by BSM W.Paton, plus four appointments to the office, of him & two other members of his family, spanning three Monarchs, Queen Victoria, King Edward & George