Wrangell finished out the year with three operating-periods off the coast of Vietnam and in the Tonkin Gulf. The largest underway replenishments were conducted with ships such as the battleship and the carriers and . In addition, she armed many smaller units — destroyers, guided missile destroyers, and Coast Guard cutters. One of the latter, , sent her whaleboat across to "Wrangell" on 21 November while off the Mekong Delta in what "Wrangell's" command history termed "what may well be history's smallest rearming." "Winnebago's" request: five rounds of 5-inch ammunition! The rearming of the USCGC Winnebago was the determining activity which placed the USS Wrangell and its entire crew on the ship AT THAT TIME on the Veterans Administration list of ships whose crew was "presumed to be exposed to the effects of Agent Orange. That determination was published Veterans Day 2012.