Gdvdosddau AHL LY dHOLMU UU GHNVANGOLe AERO EA Mr, Robert K, Welsh idee To avoid the difficulties entailed by emergencies, we request that an alternate to your principal nominee be named who could serve in event your principal nominee is unable to attend due to unforeseeable de~ velopments. Your attention is directed to the inclosure which explains the im munisation requirements for all persons who will be in thse cbserver groupe Dus to the short time available, we request that the full neues of the representatives and alternates, together with statements of United States eitisenship, dates of birth, home and business addresses, and a letter from their respective exployers certifying assignment as prin- cipal and alternate, be in the hands of the Director, Joint Test Information Office, Reom 164, Atomic Energy Commission, Weshingten 25, Sinoerely yours, Chairman Mr. Robert K, Walsh, Chairnan The Standing Comittes, House Presse Gallery The Capitol Washington 25, D.C. cor iF @® K, E. Fields, General Manager (via H.8. Traynor) Ee. A, Holles, Sp, Asst, to the Chairman Ce Heslep, ISP R, Le Southwick, Asst. Dir., PIS 6, Thompson, Deputy Dir, DIS My Salisbury, Director, pms I8P:CH 3/29/56 I8P:RLS per pms = °