Rare old books 1800

I have old books from mid 1800s and up. Like the Ladies Casket by j.G. Wesley Hansen, The Oracles of Shakespeare. Small/pocket books from family lineage from migration from Ireland after the potato famine. Don't know where to start determining the value. There's some pictures. That little bible is about 1.5 inches big, and there's that illustrated Bible Primer that is illustrated. This doesn't even include the little leather library that includes "solome" "speeches of Lincoln", Shakespeare "the tempest" "mid summer nights dream" approximately 32 in total, green circa 1920s I think. New at this stuff.
Thanks