CREATE TABLE table_6781 ("Member" TEXT, "Party" TEXT, "Electorate" TEXT, "State" TEXT, "First elected" TEXT)

Which party has a first elected of 1966, qld as the state, and donald milner cameron as the member?
SELECT "Party" FROM table_6781 WHERE "First elected" = '1966' AND "State" = 'qld' AND "Member" = 'donald milner cameron'
SELECT "Party" FROM "table_6781" WHERE "First elected" = '1966' AND "Member" = 'donald milner cameron' AND "State" = 'qld'