Respectfully disagree on the mink oil... pervasive scent aside, it's much better for waterproofing your hiking boots than preserving your vintage ballglove. We'd recommend Lexol leather products for cleaning, then lanolin for reviving, then a thin coat of Vaseline for appearance.
In addition to the excellent glove forum cited above
[
http://www.vintagebaseballgloveforum...pBB3/index.php ],
ask these guys:
http://www.freewebs.com/thegloveshop/index.htm
http://www.glove-works.com/