Rev. John B. McKissack and his wife Tammy share a testimony marked by the transforming grace of Jesus Christ and a deep passion for ministry. Both born-again and set on fire for the Lord, their lives were forever changed in the early 1990s—first John, and then six months later Tammy. Those months between their conversions not only strengthened their marriage but ignited a shared calling that has shaped their entire ministry journey.
Soon after coming to faith, God led them to the foreign mission field. In the Dominican Republic, John and Tammy established a Bible school for children and witnessed many young lives come to know Jesus. Their ministry then extended into Mexico, where they partnered with dentists to offer care to the poor in Hermosillo and Monterrey. During those years they helped build churches, supported local pastors, and—true to their hearts—poured themselves into children’s ministry, sharing the Gospel with joy, creativity, and compassion.
For the past decade, Rev. John has served as a “tentmaker” pastor in the spirit of the apostle Paul, working full-time in the engineering field while shepherding rural congregations that could not afford full-time clergy. At times he pastored as many as three churches simultaneously. Throughout those years Tammy faithfully served alongside him as a traditional Methodist pastor’s spouse—building strong women’s ministries, organizing Bible studies, and creating fellowship opportunities. One of Tammy’s most memorable achievements was leading a tiny congregation of only a handful of women to host the Southeast Texas Ladies Conference, complete with speakers, food, worship, and even a professional Christian comedian—drawing women together across multiple denominations.
Today, Pastor John and Tammy serve together as a ministry team at First Methodist Church of Winnsboro in the Global Methodist Church. Rev. John is an ordained Elder in the GMC, and Tammy is a Certified Lay Minister with a powerful calling to women’s ministry. Both firmly believe that God has miraculously and purposefully placed them in Winnsboro for this season.
Their hearts are full of gratitude for this calling, and their greatest desire is simple: to love, help, and serve God’s people with humility, joy, and the fire of the Holy Spirit. Together, Pastor John and Tammy look forward to walking alongside the church family, strengthening the ministries of the church, and pointing every heart to the hope found in Jesus Christ.