Do you know who the Knights of the Silver Hand were? They were the original paladins of the Light, and from their ranks came knights who would later join the Argent Dawn or the Scarlet Crusade. Though many have gone astray, they still possess valuable relics of the Silver Hand.
Deep in Stratholme, under the watchful eye of Instructor Galford, volumes of the Annals of the Silver Hand survive. Any volumes you could recover would be a fitting addition to the rededicated Light's Hope Chapel.