Staff & Leaders

Staff & Leaders

Elders lead and shepherd the church and devote themselves to prayer and the ministry of the Word. Deacons serve by meeting the physical and material needs of the church.


Rev. Jonathan Romig

Jonathan gets to pastor the people of Cornerstone by building relationships, preaching God’s Word, and serving as part of a team. He loves God and the church, and is blessed to see lives changed through Jesus. He is grateful for his Master of Divinity (M.Div.) from Gordon-Conwell Theological Seminary and how God brought him to Cornerstone. He is especially blessed to be married to his beautiful wife Monica and have two wonderful children, Elijah and Evangeline. He is excited to see what God is going to do…

Linda Chilson

Linda hails from update New York and was transplanted to MA as a young girl. Raised in a churched family, came to know Jesus in High School, then went off to UMASS Amherst where she met her hubby, Charles. She has 3 married children and two fabulous grandsons that bring her incredible joy. She loves the outdoors, traveling and seeing the sights as well as reading a good book and discussing it with friends. Bring on a good board game…
Office Administrator

Delana Callahan

Delana has been a Mass. resident most of her life. Born in Cambridge Hospital, she moved to Billerica when she was three. She is newly married for the second time to Walter and has two wonderful adult children and is a grandma to a great grand dog and two grand cats. Both children are engaged to be married. Brought up Catholic, she really understood Jesus to be her personal friend because of her close family life. As a teenager she…
Youth Ministry Coordinator

Mackenna Platteel

Meet Mackenna! Our Youth Ministry Coordinator. She joined our Cornerstone Family back in 2016. Her job around the church is to intentionally foster relationships between our youth and herself, the church, and God. By coordinating events and bible studies with our team of youth leaders. Her current project is revamping our youth room for when we return to in-person events post-Covid. She has also been heading up our Youth’s Instagram.  Mackenna has lived in Chelmsford Mass since 2006. She was…

Mark Pender

Mark is humbled to serve as an elder at Cornerstone.  He enjoys living life in Westford with his wife Bari and their children, Lucas and Julia.  A chemist by schooling and now a materials scientist in Billerica, Mark loves studying and sharing God’s word.  Outside of those things, Mark enjoys college football and being outside whether its a hike in the mountains or pulling weeds in the flower bed. You can watch Mark’s Testimony here.

Diana Walker-Moyer

Diana grew up on a working dairy farm in Westborough, Massachusetts and is thankful for the life lessons she learned there. She lived for 15 years in North Carolina before moving to Westford in 1996. She recently earned her Doctor of Nursing Practice degree and has been a nurse practitioner for over 30 years. She feels blessed to have a profession that allows her to serve others daily and expands that service to others in her community and in Haiti.…

Shirley Burchfield

Shirley was raised in Burlington, Massachusetts and currently lives in Tyngsboro with her husband Bruce and their parrot, Chewie. They have two adult children, Sharon and Paul. Over the years she has enjoyed careers as a computer programmer, church secretary, preschool teacher and receptionist. She loves God and wants others to know the peace that comes with knowing Him and is excited to be able to connect the people of Cornerstone Congregational Church with each other and with God. Shirley…