ok easy part (ahaha) YOU need to get a new Social secuity card. then you need to change your name on every account/bill/card you own. so banks, insurance, grocery store savings, the post office, cell phone provider. anything that sends you a bill. your library card? lol everything.
(via George) He needs her ss card, birthcirt, marriage license and a photo copy of an ID. Bring it either to IPAC or S-1(whichever his unit has) and they will take care of everything pay wise. Then, take her to the ID card office to enroll her into DEERS and get her ID. Then to Tricare and Dential. In that order