Gwendolyn Southin was born in the county of Essex, England, and emigrated to Montreal in 1952. She worked as private secretary to the director of transmission at Teleglobe-Canada for twelve years. Retiring to British Columbia's Sunshine Coast in 1982, she managed a resort and marina with her husband in Pender Harbour before moving to Sechelt where she launched her writing career.
Gwen was a founding member of the SunCoast Writers' Forge, The Festival of the Written Arts, and The Sunshine Coast Writers-in-Residence Program. She co-edited The Festival of the Written Arts' The Great Canadian Literary Cookbook with Betty Keller. Her short stories and articles have appeared in Maturity, Pioneer News and Sparks from the Forge.Participated in the Year 2000 International Writers Festival held on Granville Island October 18-22. With Stephen Miller as moderator of "What's your MO?", she shared the stage with panel members Laurence Gough, Quintin Jardine, Ian Rankin and Kathy Reichs. Her second appearance was on Saturday with moderator Hal Wake in "Calling All Crime Buffs" with panel members: Joolz Denby, Laurence Gough, John Maclachlan Gray and Quintin Jardine. Gwen also participated in the 19th Festival Of The Written Arts which was held in Sechelt August 9th - 12th 2001.