Ray was born in Aberdeen, Scotland, and grew up in a Christian home. He became a Christian as a boy, was baptized as a young man and was discipled and encouraged in his spiritual growth while he attended his home church, Holburn Gospel Hall, throughout his teens.
Ray's family immigrated to St. Catharines, Ontario in Canada when he was 17 and after a few years of difficult adjustment to his new surroundings, he studied Business Administration. A move to Belleville followed in 1981 and it was there that Ray met his future wife, Kelly. Discovering that they had a mutual passion for serving God, they attended Kawartha Lakes Bible School immediately after their marriage in 1983, and became increasingly challenged to serve God on the mission field.
While working in retail, retail management, and sales, Ray and Kelly were active in churches for a number of years in a wide variety of activities. In 1992, the Marshalls were commissioned to serve the Lord as missionaries in the Republic of Ireland and later, Ecuador, twice. During this period, they were particularly involved in children's and youth ministry; preaching and teaching and discipling small groups and individuals as well as outreach and camp ministry.
After returning to Canada, they were actively involved in planting Quinte Bible Chapel, where Ray served as an associate pastor. Later he was involved in leading Spirit Borne, a YFC performing arts team composed of young people in the Quinte region. Since 2011 Ray has also been providiing social media support for HopeStreamRadio, a Christian internet radio station and division of FBHInternational.
Ray and Kelly have recently returned from teaching ESL in China, where they developed a love for the Chinese people and an interest in their culture. This has led to their involvement in the Lincoln Road Mandarin Congregation in Waterloo. Ray, with Kelly's support, plans to carry out outreach, discipleship and leadership development alongside Nuke and Vie Shim.
Ray and Kelly have been married for more than 30 years and have been blessed with two daughters, Holly and Jessica, and two granddaughters, Arya and Brynn.