People John Mark Gilbert John Mark Gilbert John Mark Gilbert from . About Family Children He has two children, Charles and G/Capt. . Other facts about John Mark Gilbert Given name John Sex or gender Male John Mark Gilbert's Children (2) Charles Lennox Gilbert G/Capt. Charles Lennox Gilbert Comments There are no comments yet. Enter your name here: Enter your email here: Enter your message here: Your message is required. Markdown cheatsheet. Submit