I can see that a spouse died between censuses because the other partner is listed as "widow' or "widower", but then I can't find any death info. When did Social Security start listing deaths? For that matter, forgive my ignorance, when did Social Security come into existence? I'm new to tracking down death info so I don't really know what my options are. What if it is a child? I'm working mostly in PA, if that's any help in directing me. Thanks in advance for any help.