Modern Hagiography
Miniature Lives Of The Saints For Every Day In The Year by Henry Sebastian Bowden.
Writings of Saint Silvanus
Sayings (this is the source of the feast day given here)
Art & Architecture
Emblems of Saints by Which They Are Distinguished in Works of Art by F. C. Husenbeth (see also Saints and their Attributes, maybe same).
Nihil sub sole novum 