Jacki, Pd. is not a code for that column. It's PA (Pa) for Papers filed, NA (Na) for Naturalized, and AL (Al) for Alien.
Can you say where you found your ancestor on the 1930 so another pair of eyes can take a look? You didn't have to be a citizen to have Social Security. Cheri Mello Listowner, Azores-Gen Researching: Vila Franca, Ponta Garca, Ribeira Quente, Ribeira das Tainhas, Achada -- To unsubscribe from this group, send email to azores+unsubscr...@googlegroups.com. Follow the confirmation directions when they arrive. For more options, such as changing to List, Digest, Abridged, or No Mail (vacation) mode, log into your Google account and visit this group at http://groups.google.com/group/Azores. Click in the blue area on the right that says "Join this group" and it will take you to "Edit my membership."