Our Leadership

"And he gave the apostles, the prophets, the evangelists, the shepherds and teachers, to equip the saints for the work of ministry, for building up the body of Christ, until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fullness of Christ". (Ephesians 4:11-13)


Cornerstone is led by a pastoral staff team of four members. The pastoral staff is responsible for the preaching and teaching of the Word of God, administering the sacraments, providing missional leadership, and faithfully carrying out pastoral care and work.

  • Bill Johnson Lead Pastor email

    Hailing from the Midwest, Pastor Bill is married to his wife Marla and has three adult children - Christine, Sarah, and Daniel. Pastor Bill received an undergraduate degree in psychology from Wheaton College. His graduate degrees include an M.A. in educational psychology and counseling at University of Nebraska-Lincoln, an M.A. in Religion as well as an M.Div from Westminster Theological Seminary. Pastor Bill then went on to complete a Doctor of Ministry at Trinity Evangelical Divinity School, writing his dissertation on spiritual formation. His ministry experiences include pastoral positions in local churches in Nebraska, Minnesota, Michigan, Ohio, and overseas in Panama and Honduras. He is currently ordained in the Brethren Church and in the Evangelical Free Church of America, but in the process of transferring ordination to our denomination, the Evangelical Covenant Church. Pastor Bill was called as our new lead pastor in July 2014.

  • Linda Wolfe Family & Children's Pastor email

    Born and raised in Waterloo, Canada, Pastor Linda is married to her husband Jeff and they have two grown children, Sarah and Christopher. After studying psychology and business in undergrad, she heard the call into full-time ministry. She earned her undergraduate degree from Wilfrid Laurier University and her M.Div from McMaster Divinity School in May 2009, while working part-time at a church. From January 2010 to December 2017, Pastor Linda and Jeff lived in Asia, where she served as a pastor in an international church in Hong Kong. Pastor Linda is ordained by the Canadian Baptists of Ontario and Quebec, and has happily started ministry at Cornerstone in July 2019.

  • HoJin Yoo Young Adult & Community Life Pastor email

    Pastor HoJin was born and raised in New York City, departing to the University of Illinois at Urbana-Champaign to receive a B.A. in Economics. After committing to God's call to ministry, he attended Gordon-Conwell Theological Seminary for his M.Div. He was ordained in our denomination, the Evangelical Covenant Church, in 2015 and has been serving at Cornerstone since 2009. He is currently pursuing the Foundations of Biblical Counseling Certificate through the School of Biblical Counseling at the Christian Counseling & Educational Foundation. Pastor HoJin and his wife Julie are parents to their daughter Selah.

  • Danny Yoon College & Worship Pastor email

    Pastor Danny is a Massachusetts native and a die-hard Boston sports fan. He completed his undergraduate studies at the University of Massachusetts in Amherst, majoring in communication and minoring in psychology, and his graduate studies at Gordon-Conwell Theological Seminary, where he obtained his M.Div degree. Pastor Danny is a certified CrossFit trainer and a licensed minister in the Evangelical Covenant Church and has been serving Cornerstone since 2011. He is happily married to his wife Eunjee and they have a son, Judah.


The Leadership Team (LT) at Cornerstone is a group of congregation-approved members who oversee the church both spiritually and operationally. It is a group made up of between 5 and 9 people that operate on year-long terms starting in August. In many other churches, the analogous leadership is structured as Elders and Deacons.

On the operational side, the LT oversees church finances, makes sure we have a place to worship, and takes care of other business matters. On the spiritual side, the LT makes sure the Pastoral Staff has accountability and are taken care of and keep a general pulse of the congregation’s health. The overall goal is to maintain Cornerstone’s health as a Christ-centered community. Who is currently on the Leadership Team? The LT currently consists of 5 members plus our Lead Pastor, Bill Johnson.

  • Brandon Chuang Chair & Treasureremail

    Brandon grew up in Orange County, California. He received his BS in Biology at University of California, San Diego in 2013 and his OD from New England College of Optometry in 2018. Brandon works as an assistant clinical professor of optometry at his alma mater and is happily married to his wife Lucy. He currently resides in Medford while working for his school at South Boston Community Health Center as an attending optometrist. In his spare time, he likes to play tennis, play Super Smash Brothers, and hike.

  • Grace Hong Nominating & Vice Chair email

    Grace has been attending Cornerstone since 2012 as a student at Brandeis University, after moving to Boston from Nashville, TN. She is currently working as an immigration attorney with a non-profit legal aid based in Worcester, MA freshly after receiving her J.D. from Boston University School of Law. She currently serves in the College Ministry, and has served in the past as a campus leader in college. Grace loves building genuine community and is passionate about advocating for the voiceless.

  • Alina Kim Secretary & Pastor Care email

    Alina Kim has been attending Cornerstone since 2012, when she moved to Boston for her first job post-graduation. It is also through Cornerstone that she met and married her husband Stuart and dedicated their two sons, Kai and Zeke. Alina uses her spiritual gifts of exhortation and leadership to spur those around her to action, especially in areas of addressing mental health and faith.

  • Haemin Yuh Membership email

    Haemin Yuh has been attending Cornerstone Church since 2014 and lives in Brookline. Haemin's husband is Dave, who she met at a Friday Night Fellowship gathering at Cornerstone. Currently, she's enjoying being a stay at home mom for her five year old son, Aidan, and two and a half year old daughter, Emily. Previously, she worked in international development with a focus on global health.

spiritual overseers

The Spiritual Overseers at Cornerstone are members of our church, approved by the congregation, called to care for the church, be willing and able to both teach and discipline the church, protect and guard the congregation (from false teachings), and be devoted to the ministry of the Word and prayer (Acts 6:4).

  • Sabrina Seo

    Sabrina has been attending Cornerstone since undergrad at Northeastern University. She finds joy and life from spending time with children and worked at a daycare for a year after graduation. She is now studying nursing at MGH. She has served in various ministries such as Children’s, Spiritual Formation, Prayer, and Global Missions. She has a desire to grow in holistic missions, and for this reason enjoys getting to know people and listening to their stories.

  • Eugene Won

    Eugene has attended Cornerstone and its origin church since 1998, when he came to Boston for his undergrad studies at Boston University. Eugene is passionate about faith journeys and gets amped to hear others' stories as well as sharing his own. A loud and proud native of Nashville, TN, Eugene works in marketing in the life sciences industry. He lives in Woburn, MA with his best friend and wife, Francis, and two amazing sons, Ryan and Caleb. In his spare time, Eugene likes to bang on the drums, exercise, and play RISK.

  • Dana Cho

    Dana has attended Cornerstone Church since moving to Boston for graduate school in 2010. She recently moved to the South Shore with Casey, her husband, and their two spunky daughters, and she currently works as a school psychologist at a middle school. Dana finds joy walking alongside others through different seasons of life. She loves learning about identity development, discovering how God is working is both small and big ways in others' lives, and all things related to ice cream.

Ministry Interns

Seminary students and graduates who attend Cornerstone often serve as ministry interns under the care and guidance of the pastors. These interns, who are both current and past students, serve in various capacities at our church while pursuing their degrees. If you are interested in learning and growing with us please email staff@cornerstoneboston.org