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Mary Ann is the Co-Founder of Leadership Training International ("LTI"), along with her late husband,
Rev. R.B. "Bud" Cassdy. After more than 40 years of full-time active partnership in ministry, she took on the role as President of LTI in 2006, when the Lord called Bud home.
Mary Ann was raised in Texas, alternating between Austin and Port Arthur, and attended the full gospel churches that her parents pastored. She is the eldest child of Rev. J.P. Barkley and Rev. Ellie Neal Barkley, and is the niece of Rev. Slater Neal, who was a graduate of L.I.F.E. Rev. Neal became the worship leader for Aimee Semple MacPherson. For many years, Rev. Neal served as an evangelist in the Four Square Church before taking the pastorate of Trinity Church (later known as Bethel Temple; now known as The Sanctuary) in Port Arthur, and is the church that Mary Ann considers to be her home church. She found the Lord in salvation at the age of 6 and by the time she turned 11, she was baptized in the Holy Spirit and touched by God for service in foreign missions. After graduating from high school, Mary Ann attended Southwest
Texas University in San Marcos and then Lamar University in Beaumont. In 1963, she moved to Houston where, through a series of events that could have only been orchestrated by the hand of God, she met and married a young evangelist and associate pastor named Bud Cassidy. Bud was also an anointed musician and worship leader, having served as Head of the Music Department for Southern Bible College in Houston, and Mary Ann was an accomplished church organist. Worship and music was an integral part of their ministry together. Wherever the Lord led, she served as pastor’s wife and co-pastor, teacher and Bible College Instructor, secretary and administrator. Mary Ann answered the call to preach at age 30. She is a dynamic conference speaker and anointed teacher of the Word. She was officially ordained in 1985.
After 16 years in pastoral and Bible College ministry, Bud and Mary Ann accepted a 4 year residency invitation to establish a Bible Training Institute in Ghana, West Africa in 1979. In 1986, invitations came from India and Nigeria where their ministry concentrated on city-wide crusades, conducting Annual Leadership Conferences and assisting in the establishment of ministerial training institutes in these countries and their surrounding areas. In 1984, God led Mary Ann to minister to women who are in any way involved in leadership ministry. She began a fellowship of “Pastors Wives and Women in Ministry,” and published a newsletter called “Woman-to-Woman.” In 1998, she began annual ministry to women in Nigeria known as “Women in Ministry Conferences” which are held in Jos, Nigeria and in Accra, Ghana. In 2002, she co-hosted a Women’s Conference in Johannesburg, South Africa, in which representatives from 15 African nations were present. She conducts similar conferences in India, as well, that coincide with the Pastors & Ministers Conferences.

From 1993 through 2003, Mary Ann led a team of dedicated Christians every December to minister to hundreds of orphaned children in Romania, Mexico, or Guatemala. In addition to the numerous roles in which she has served, Mary Ann has authored and co-authored teaching materials including many of the core subject materials for the Bible College Curriculum, as well as several self-study guides, conference materials, and has recorded several audio subjects. Mary Ann continues to teach, train and equip the next generation of church leaders in these nations, and wherever else the Lord may lead.

Mary Ann makes her home in Ocala, FL and has three daughters, three grandsons and three granddaughters.