On May 19, 1856, ten physicians presented a petition to the Privy Council of King Kamehameha IV, requesting to a charter of incorporation. The Council immediately approved the petition with the following words:
Hooloia; O ka palapala noi a Hillebrand ma, aiwa lakou, he poe Kahuna [!] la kou, i palapala hui na lakou, ua aeia, a ua kauohaia ke Kuhina Kalaiaina e haawi aku, me ka malama aku, ua pololei Ke kakau ana.
Resolved; That the Petition of Dr. Hillebrand and nine others, medical men, for a charter are [sic] granted, and the Minister of the Interior is directed to grant the same, taking care that it be properly drawn up.
After the organization held its first meeting on August 13th, the Charter was published in The Pacific Commercial Advertiser on August 21st and in The Polynesian on August 30th.