Meet Our Team

We have so many people involved with this ministry from prayer partners, to directors, to bloggers, to everything else a ministry needs to function. We love the heart these people have for this ministry.

Nina Roesner, Executive Director

roesner10_4x6 - CopyNina Roesner is the executive director of Greater Impact Ministries, Inc., a Christian training organization. Nina has more than 20 years in the communications and training industry and has coached executives, managers, individuals, wives, church staffs, and pastors around the country. As a professional speaker for women’s groups and the developer of Daughters of Sarah and The RESPECT Dare (Thomas Nelson, 2012), she has seen hundreds of marriages positively impacted by the understanding and application of the biblical concept of respect. Nina
 writes consistently about family life and our identity in Christ on her blog. She has been married to her husband, Jim, since 1991, and together they are privileged to be raising and homeschooling three children.

Debbie Hitchcock, Operations Director

Debbie HitchcoHitchcock34-croppedck is the Operations Director of Greater Impact Ministries, Inc. and co-facilitates Daughters of Sarah with Nina. She believes that God has intricately woven all her life experiences together for this ministry and God used Daughters of Sarah to help her realize His plan. After thirteen years of Human Resources experience with companies such as General Electric and American Hospital Supply Corporation, Debbie decided to start her own training and consulting firm. Her experience in management development and training combined with her over 30 years of marriage to her husband, Dave, provide a unique blend for Greater Impact. Debbie’s experience in raising four children led to the development of Generations Live!, a biblically based program for parents of Tweens, Teens, and Twenty-somethings, that is offered by Greater Impact. She also blogs for the ministry.

Bonnie Hauer, Communications / Prayer Director

Bonnier Hauer Prayer and Ecourse Director of Greater Impact MinistriesBonnie Hauer is the Communications/Prayer Team Director.  She responds to email inquiries regarding the ministry and manages our website updates and eCourses.  Bonnie also communicates prayer requests to our fantastic Prayer Team of committed prayer warriors.  She has a heart for women and has appreciated the effect the ministry has had in her own marriage of 39 years and in her walk with Jesus Christ.  Bonnie has 3 adult children and 4 grandchildren.


Sandi Winnen,  eCourse Mentor / Online Community Manager

sandi_winnen_2016Sandi is our online lead mentor for the Respect Dare eCourse.  She offers daily encouragement to all the women in the course, feedback when asked and gentle accountability.  She cares deeply about saving marriages as her first marriage ended in divorce.  She is now remarried to her first husband and is committed to working with women to help strengthen God honoring marriages.  Sandi loves serving in her church and is a full-time emergency room nurse.  She and her husband have 3 grown sons.


Stefanie Price, Projects Manager



Kate Bittner, Graphic Designer







Jennifer McKinney, Social Media Ninja


Jessica Wade, Reach Ninja

Curtis McHale, Internet Technology

Charlyn Elliott, Editor

Jennifer Adams, Finance Manager

Gail Wehrman, Projects Manager

Greater Impact Certified Facilitators


Board of Directors for Greater Impact Ministries

Jim Roesner, Chairman

David Hitchcock

Dale Robertson

Debbie Hitchcock

Nina Roesner