CREATE TABLE table_76338 ("Name" TEXT, "Background" TEXT, "Title" TEXT, "Appointment" TEXT, "Presentation of Credentials" TEXT)

When did Robert G. Miner present his credentials?
SELECT "Presentation of Credentials" FROM table_76338 WHERE "Name" = 'robert g. miner'
SELECT "Presentation of Credentials" FROM "table_76338" WHERE "Name" = 'robert g. miner'