Gloria Dickie 22 May 2023
Roger Gocking 24 Mar 2021
John Yeld 9 Dec 2020
Mike Muller 28 Oct 2019
Luis Alberto Torres-Cruz 7 Aug 2019
Matthew McCartney and Fritz Kleinschroth 14 Feb 2019
Jason von Meding, Giuseppe Forino, Tien Le Thuy Du 1 Aug 2018
Mike Muller 5 Dec 2016
Jennifer Drake 30 Aug 2016