CGI 2013/ Featured Videos/ Women & Girls 2013, Global Give Back Circle 0 Comments 10/23/2013 Linda Lockhart & Mary Mwende, Global Give Back Circle (CGI 2013) Linda Lockhart, Founder and Chair of the Global Give Back Circle, and Mary Mwende, from the first GGBC class, explains the progress and benefits of the mentoring organization. > GLOBAL GIVE BACK CIRCLE SHARE