What's lard? Is that pig tallow?
Well, yes and no.
Both are rendered animal fat but Tallow (by definition) comes from ruminant animals (cattle, mutton, buffalo, etc.). Lard (by definition) is from pigs. They are not chemically identical.
One other comment on Lard...I just looked at the container of commercial Lard (Armor brand) we have in the house now and note that it contains the additives: BHA, Propyl Gallate, and Citric Acid.