PORT HURON, Mich. - Rear Adm. Michael N. Parks, 9th Coast Guard District commander, administers the oath of office to Cmdr. Timothy T. Brown after his promotion from lieutenant commander to commander aboard Coast Guard Cutter Hollyhock, during a ceremony June 28, 2012 at the cutter's homeport of Port Huron.U.S. Coast Guard photo by Lt. Davey Connor