Have used the index to war of 1812 war loss claims.(C-15720) Have found ancestor(s) listed in this card index with a reference number. Don't know what to do next. What resource does this reference number relate to?

[From Suzanne Schaller] -- C-15720 looks like a National Archives microfilm number. Have you tried looking at this film? Or, if the index is from the National ARchives (which I think it is), there should be info on what the reference number means, or else their reference department should be able to tell you. Hope this helps!