Crewmembers load more than 1,200 Christmas trees onto the Coast Guard Cutter Mackinaw, Nov. 25, 2013. The Mackinaw, serving as this year's Christmas Ship, will help re-enact a tradition dating back to the late 1800s and early 1900s when the Rouse Simmons delivered trees to the people of Chicago for more than 30 years. (U.S. Coast Guard photo by Petty Officer 3rd Class John Filippone)