Meet Our Staff


Reverend Dr. Mark Williams, Senior Minister


Pastor Mark is inspired by seeing the kingdom of Heaven come to earth and feels called to preach, teach and live the Good News here at UCMI. He believes that the purpose of the Church is to partner with God to bring heaven to earth and his heroes are the many non-famous people in pews everywhere who make a quiet difference.  His denominational background mirrors the diversity of those who worship at United Church of Marco Island. Before coming to United Church, Pastor Mark served as pastor in a Congregational Church (UCC), a Cooperative Baptist Church, and multiple United Methodist Churches.

In the spring of 2012, Pastor Mark was selected to be a keynote speaker at The Quarry, a leading-edge school of Christian leadership recently heralded by Faith and Leadership magazine. In the summer of 2013, his research in the area of preaching was published by The Baptist Quarterly Review.

Pastor Mark brings passion and enthusiasm to United Church.  He was born and raised in Vero Beach FL.  He received his B.A. in English from Davidson College, his M.Div. from Duke University, and his D.Min. from Mercer University. In his spare time, Pastor Mark enjoys taking advantage of the beautiful Marco Island weather by golfing, grilling, and sharing time with his family.

Favorite quote: "We cannot control the future. But what we can control is the kind of people we will be when the future comes." Joshua Lawrence Chamberlain (Union Army General)

Favorite Bible Verse: Proverbs 4:23, "Above all else, guard your heart for it is the wellspring of life."

Rev. Kathy Sprague, Associate Minister of Pastoral Care


Kathy brings to United Church an alive faith in Christ, a compassionate heart, and many years of ministry experience in different church settings. Kathy has a history of starting and growing pastoral care initiatives in large churches. Kathy served as director of pastoral care at St. George Episcopal Church in The Villages, FL. Most recently, Kathy served for the last six years as the Associate Minister of Pastoral Care at Faith United Methodist Church in Fort Myers, FL.

Kathy has been married to her husband Dr. Randall Sprague (a physician) of 45 years. The Sprague's have two adult children and enjoy sharing time with grandchildren, walking the beach, and staying active. 


LuWayne Arnold, Music Director

LuWayne is a professional  musician who has served many churches. We are all blessed by Luwayne's faithfulness and by her musical talent. In her capacity she oversees our choirs, and provides music for all services of worship.


Debbie Bonavita, Children’s Ministry Coordinator

Debbie comes to UCMI with many years of experience as a teacher in church and school settings. Her love for children and infectious enthusiasm for our program is a blessing to children, parents, and teachers! Debbie is responsible for resourcing our children's church classrooms on Sunday morning as well as for recruiting and equipping our dedicated teachers.


Wanda Anderson, Office Manager

Wanda's unique blend of people skills and technological expertise leads our communication and administrative efforts at United Church. Wanda keeps the church office humming like a well-oiled machine! 

Kate Muenzler-Joyce, Office Assistant

With a love for Church and all of its facets, Kate is happy to spend her time working with the various administrative functions of the church.  With two little ones at home, Kate works part-time throughout the week providing a helping hand to Wanda and Stephen.


Stephen Tepper, Finance Assistant

Stephen brings a wealth of financial experience to United Church.  He worked as a tax accountant for many years prior to retiring in Southwest Florida. Stephen has a life-long experience in the areas of bookkeeping, accounting software, taxation, and management. Most recently, Stephen served as faculty at the University of Pittsburgh where he taught courses to undergraduates.


Dale "Curly" Gosset, Church Sexton

Curly has been a "Mr. Fix It" all his life. Throughout his professional career, Curly has worked in various different maintenance roles. He worked for over ten years in the heating and AC business. In previous positions, Curly also worked as a licensed plumber and electrician. Before moving to Naples, Curly oversaw the maintenance of 12 medical buildings at Washington University in St. Louis. In addition to his experience in maintenance, Curly has tremendous expertise in the area of turf management, landscaping and irrigation.


Samantha Kopren, Bargain Basket and Church Outreach Manager

Samantha's love for missions, combined with a marketing and communication background drives United Church's outreach and Bargain Basket Thrift Store in the right direction. Samantha operates the marketing and communication platforms for the Church in addition to overseeing the overall success of the thrift store and actively promoting its growth and sales through advertising and social media. 


Ken Gilbert - Bargain Basket Manager of Operations

A Marco Island resident since 1974, Ken has over 20 years of experience in customer service, retail management, and a talent for working well in group settings. Ken is responsible for providing customer and volunteer assistance in addition to maintaining the Bargain Basket building and grounds. 


Jackie Weiner - Bargain Basket Assistant Manager

Originally from England, Jackie moved to the USA 25 years ago but just recently moved to Marco from NJ in September. Jackie brings creativity and a passion for helping others to the Bargain Basket. Jackie loves acting and theater- both on and off stage. Some of Jackie’s favorite things include animals, kickboxing, biking, walking the dog, The Island, sunsets, and her family!


Diana Moore, Bargain Basket Assistant Manager

Aside from an 8 year commission in the Army Nurse Corp and many years as an ER nurse, Diana Moore also brings many years of retail management experience to the Bargain Basket. In addition to her nursing and retail experience, Diana has spent her recent years volunteering with other thrift stores as well as the Freedom Waters Foundation. With Diana’s supervision on Saturday's and seasonal evenings, the store is able to run smoothly and seamlessly.