Field Staff Directory

Southeast Coastal Region
Col Chet & Michelle Arnold, USMC (Ret.)

Pensacola, Fla., has been our homeport since July 2014. From here we travel throughout OCF’s Southeast Coastal Region to meet with, encourage, and equip OCF members who serve as Area Coordinators, Local Leaders, and Contacts. We encourage all those we meet along the way to join us in realizing OCF’s vision of a military society positively impacted by Christlike leaders. In Pensacola, we spend our time meeting with the young men and women who attend flight training for the Navy, Marines, and Coast Guard and those who attend Combat Systems Officer training for the Air Force. This includes Bible studies and one-to-one and couples mentoring. It is a privilege to come alongside these folks as they seek to serve the Lord at the intersection of faith, family, and profession. Together, we are building Christian military leaders, families, fellowships … for a lifetime.

CAPT James & Juli Baca, USNR (Ret.)

We are the Officers’ Christian Fellowship group at the U.S. Naval Academy. We have a heart to grow members of the military in their Christian faith and connect them to other believers in fellowship. The USNA branch of OCF is focused on fostering the spiritual growth of midshipmen in Annapolis.

Mid-Atlantic Region
CDR Joe & CDR Kristi Chiaravallotti, USN (Ret.)

Joe and Kristi’s region of OCF ministry spans from Pennsylvania and New Jersey down to Virginia and a small part of coastal North Carolina, and everything in between. Their ministry role is to have a heart of a shepherd who develops, grows, and sustains relationships with OCF members, chaplains, and ministry co-laborers. Joe and Kristi met each other in 1986, while they were both Ensigns in the Navy. They were married in 1988 and have been OCF members since 1995. For the last few years, they have been serving as OCF Local Leaders for the Walter Reed NMMC military community, as well as Area Coordinators in the National Capital Region, and also on the White Sulphur Springs Advisory Committee. While in the Navy, Joe served a surface warfare officer and Kristi served as a Navy nurse. They currently reside in Silver Spring, MD. They have five adult children, including their two daughters-in-law which they consider their children, three grandchildren, and one grandchild on the way.

CDR Carl & Christy Crabtree, USN (Ret.)

CDR Carl and Christy Crabtree, USN (Ret.) and family have been ministry leaders for 30 years while in the military and are pleased to shift colors to the U.S. Coast Guard Academy as they, and a volunteer ministry team, disciple and mentor cadets. They emphasize the Word, prayer, witnessing, fellowship, obeying the Holy Spirit, and Christ in the believer.

LTC Jim & Christina Harbridge, USA (Ret.)

We first encountered Officers’ Christian Fellowship while Jim was a CGSC Student in 2012. Our time in Leavenworth was extremely impactful. We became deeply connected to the Post Chapel community (Christina was baptized here) and the OCF ministry. Discipleship Training Breakfast and the connections made leading our neighborhood bible study were transformational in our walks with Christ. We remained connected to OCF in follow on duty assignments. When looking for a final assignment, connection to this community was a major consideration. Since arriving back, the Lord provided a series of opportunities to grow and deepen our connection to Leavenworth OCF ministry. We were blessed to be selected for vocational ministry.

Lt Col Paul & Janee Homan, USAF (Ret.)

Paul (2002) and Janee (2001) met while cadets in an OCF bible study at USAFA. Paul served as a meteorologist for 20 years in the Air Force, including assignments as a Squadron Commander and Professor at the Air Force Academy. Janee served in personnel for five years before separating to care for their four children. They have led numerous small group OCF Bible studies in their home over the years and served as volunteers on the OCF USAFA Ministry Team for seven years. They now lead the talented group of Ministry Team volunteers who serve cadets through weekly Bible studies, one-on-one discipleship, retreats, and numerous fellowship events. They love to proclaim Christ through hospitality and encouraging all to answer the calling to be missionaries wherever God sends you.

LTC Steve & Angela Kreh, USA (Ret.)

Steve (1999) and Angela (2001) are both graduates of the U.S. Military Academy who met while working in youth ministry as cadets. Steve retired from the Army as an Engineer officer while Angela served in combat as a Signal Corps officer before staying home with their five children. The Krehs began as field staff at USMA in 2020. Numerous devoted volunteers assist the USMA OCF ministry in its mission to equip and to encourage cadets as they grow in Christ preparing them to lead like Jesus. The ministry team accomplishes this through individual and small group meetings as well as weekend social and special events. Many of these events take place at the OCF Fellowship House located directly outside West Point’s Thayer gate.

Mountain Central Region
COL Steve & Miriam Shambach, USA (Ret.)

Steve joined OCF in 1990 as a Major when invited to an OCF Bible study led by lieutenants in Germany. He married Miriam in 1992. Miriam has been involved with several parachurch ministries (Young Life, Navigators and MCYM/Club Beyond). Since 1992, they have been Area Coordinators at numerous locations, most recently Colorado Springs, and are currently Spring Canyon Advisory Council members. Their vision and hope are to come alongside OCF Area Coordinators, Bible study groups, and OCF members in the Mountain Central region to pray with, support, and encourage them and their faith.

Lt Col Larry & Rita Sherbondy, USAF (Ret.)

Larry and Rita are the OCF Field Staff representatives for ROTC. They served the past nine years at the Navigators ROTC ministry, which they founded. The Sherbondys are 40-year veterans of vocational ministry to cadets and military leaders, including at the Citadel, USAFA, and the Army War College, more recently partnering with OCF members serving there at USAWC. While championing the ministry of OCF ROTC, he and Rita will also remain engaged in local ministry to students and faculty there at the War College.

Pacific Northwest Region
Col Larry & Bobbie Simpson, USAF (Ret.)

Serving as OCF’s Pacific Northwest Region Coordinator staff couple, Larry and Bobbie Simpson build relationships with PNW Area Coordinators and Local Leaders in an area that includes Washington, Oregon, Idaho, northern California, Alaska, and Hawaii. Larry and Bobbie have served on the OCF staff for over 15 years, formerly the Puget Sound and Family Outreach field representatives. Founders of OCF’s Spiritually Smart Family Conferences, they have presented at multiple marriage enrichment conferences across the country and worked with many military couples, individuals, and chaplains. Following 27 years in the USAF, Larry retired in the rank of Colonel, having served as a human resource management officer and commanded various units throughout his career. He holds a BA in Psychology, an M.Ed in Counselor Education, and an MA in Christian Leadership. Bobbie holds a BA in English & Journalism, and an MA in Education. She leads numerous women’s Bible studies and mentors women in living worthy of their calling. Married for 45 years, the Lord has blessed Larry and Bobbie with three children and six grandchildren. They are also the authors of Leader, Draw Near – Devotions for your Pursuit of God. You can find the LDN podcast here.

Maj Tim & Kim Tormey, USMC (Ret.)

Tim and Kim were first introduced to OCF at the Naval Academy and have been participating in the ministry ever since, most recently by serving on the OCF Council, as a Mentor for RMH, and leading a local OCF study in their home. Their desire is to teach, train, equip, encourage, and charge the officers, families, and leaders that come through Air University. They also desire to connect them to the larger OCF body and fellowship of believers. Tim and Kim closed out their Marine Corps career while instructing at ACSC and have developed a deep love for the airmen in blue. Tim and Kim do life with 14 children, often referred to as the “Tormey gang,” and each one will most gladly spend and be spent for the sake of the gospel.

Women’s Ministry
Tami Waring

Tami Waring is a 1984 graduate from the United States Air Force Academy. She served for 5 years in the AF as a Space Systems Analyst in Intel. After separating from the AF she followed her AF husband, Hous, around for over 24 years of his career. Tami and Hous have nine children and 18 grandchildren, spread out in eight states. She homeschooled all her children and just sent the last child off to college in July of 2022. Currently Tami works for Officers’ Christian Fellowship (OCF) as the Staff Representative for Women’s Ministry. She enjoys reading and knitting in her free time.