
Darcy Collins
Director of Business Development at Valir PACE
Valir PACE provides comprehensive care for adults 55+, combining medical services, therapy, transportation, meals and more . . . all designed to help participants age in place and maintain independence. Our dedicated health care teams works with each individual and their caregivers to promote mobility, well-being, and quality of life.
405-640-5720 darcy.collins@valir.com
Speaking Date: Friday, June 6th @ 12:00pm

Ashleigh Robinson
Bethany Children’s Health Center
Ashleigh Robinson is a proud Oklahoman and fierce advocate for Danielle, her younger sister with Down Syndrome. In 2021, she was crowned Miss Oklahoma and competed at the 100th anniversary Miss America pageant with the platform of inclusion for all abilities. She has been widely recognized for her leadership, receiving honors such as NextGen Under 30, the 2022 Advocate Award from The Arc of Oklahoma, the 405 Magazine HER Award, and the Journal Record 40 Under 40. She serves on boards of Goodwill of Central Oklahoma, the Oklahoma Medical Research Foundation, the Oklahoma City Philharmonic, and Friends of the Oklahoma History Center. Her professional journey includes teaching for Oklahoma City Public Schools, lobbying at the Oklahoma State Capitol, and she is now the Development Manager at Bethany Children’s Health Center.
Bethany Children’s Health Center is an innovative leader in the field of pediatric rehabilitation and 24-hour complex care. The private, non-profit hospital, which is accredited by Accreditation Commission for Health Care (ACHC), offers inpatient and outpatient services for children and is the only inpatient pediatric rehabilitation facility in Oklahoma. The hospital is also accredited by the Commission on Accreditation of Rehabilitation Facilities (CARF). Our multidisciplinary team works with patients and their families to maximize every child’s potential, and ensure the family has the training and resources needed for a smooth transition from hospital to home.
arobinson@bethanychildrens.org 405-
Speaking Date: Friday, June 13th @ 12:00pm

D’anna Pulliam
Buck$ 4Bikes
danna.pulliam@att.net 405-408-5457
Speaking Date: Friday, June 20th @ 12:00pm

Maressa Treat
Oklahoma County Clerk
Oklahoma County Clerk, Maressa Treat, is a proud Oklahoman with the heart of a community advocate. Maressa was elected to this role in April 2023 and was re-elected in April 2024. Serving the people of Oklahoma in this capacity is one of the most fulfilling roles of her life, helping to improve the lives of Oklahomans.
Maressa previously worked for U.S. Senator James Lankford as Finance Director and Director of State Outreach. Her prior experience with the State Chamber as Director of Strategic Partners to the office of the Oklahoma Secretary of Energy taught her how government can create a thriving environment for businesses and families.
Treat sits on the Oklahoma County Budget Board and the Retirement Board. She also serves on nonprofit boards including Positive Tomorrows, LiveFree OKC, and Remerge. Notably, she provides guidance on the YWCA Executive Board to give survivors of domestic violence a strong voice. Recently, the Oklahoma Hispanic Institute named Maressa as one of the top 40 Hispanic leaders. Treat’s Hispanic
heritage is an important part of her life.
Treat and her husband, Greg, live in northwest Oklahoma County with their three children, Mason, Cooper, and Olivia.
405-713-1849 cherokee.ballard@oklahomacounty.org
Speaking Date: Friday, July 11th @ 12:00pm

Greg Mashburn
Director OSBI
Greg Mashburn was named as the OSBI Director and began his service on March 1, 2025. He graduated from Idabel High School in 1990. His mother worked in the McCurtain County District Attorney’s Office in Idabel for 20 years. For the past 30 years, Greg and his family have lived in Norman.
Mashburn attended Harding University in Arkansas on a football scholarship, graduating in 1995. He then obtained his Juris Doctorate from the University Of Oklahoma School Of Law in 1998.
He has spent a decade learning to advocate for victims as an Assistant District Attorney in Oklahoma County. There he built an impressive record, becoming a Division Chief just six years after he began his career.
In 2006, Greg was elected as District Attorney for District 21 which included Cleveland, Garvin, and McClain Counties. He spent 18 years as the DA building an impressive record both as a prosecutor and an administrator. In 2008, Mashburn was named outstanding District Attorney for the State of Oklahoma after only his first year in office. In 2024, he was selected a second time. In addition, his office and staff were recognized locally and statewide with numerous awards for
excellence.
On the State level, he previously held a leadership position with the Oklahoma District Attorney’s Council having been appointed by the Oklahoma Bar Association to serve on the five person District Attorney’s Council. Prior to that, Greg served as president of the District Attorney’s Council and the Oklahoma District Attorney’s Association. In 2015 Governor Mary Fallin appointed Greg to serve on the Oklahoma Bureau of Narcotics and Dangerous Drugs Control Commission. Nationally, Greg has served on the NDAA Board of Directors and has been a faculty
member at trainings across the country.
405-879-2585 mashburn16@att.net monica.holata@osbi.ok.gov
Speaking Date: Friday, July 18th @ 12:00pm

Darrel Johnson
Overcoming Challenges
2024 – Retired
Author – It’s Only a Game (August 2025 launch date)
2023-24 Senior Evaluation Analyst – Phoenix Suns
2016-2022 College Scout/ Personnel – LA Clippers
2010-2016 College Scout/Personnel – New Orleans Pelicans
2003-2009 College Scout/Personnel – Charlotte Bobcats
2004-2009 Athletic Director – Woodlands Christian High School
1994-2004 President – Home At Last Inc. – Real Estate
1992-1994 Head Basketball Coach – Baylor University
1990-1992 Head Basketball Coach – Oklahoma City U
1985-1990 Head Basketball Coach – Oklahoma Baptist U
1982-1985 Assistant Basketball Coach – Oklahoma State U
1980-1982 Head Basketball Coach – Ada (OK) HS
Honors and Achievements
Five Time Conference Coach of the Year
Two Time National Coach of the Year (NAIA)
Coached Two National Championship Teams (Okla City U)
Inducted Oklahoma City University Sports Hall of Fame
Inducted Putnam City High School Sports Hall of Fame
58 Game Winning Streak – Longest active streak in Men’s Basketball
Coached three High School State Championship Teams
20 Year NBA Career in Scouting/Player Personnel
Personal
Married – Beth Johnson
Children – Derek, 35 and Lauren, 25
Leadership – Marriage 2.0 Life Group (through Life Church)
Life Group Coach – Supervision of multiple church groups
Master’s Degree – M.Ed. (conferred in 1982) from East Central Oklahoma State University
405-834-6077 duuk1990@gmail.com
Speaking Date: Friday, July 25th @ 12:00pm

Clairessa Riggs
Center of Family Love
In 1981, members of the Knights of Columbus, parents, and passionate individuals founded the Center of Family Love. CFL is a non-profit organization dedicated to providing a nurturing and supportive home for adults with intellectual disabilities. We cultivate a nurturing environment where individuals with IDD can flourish and lead fulfilling lives. Through a range of programs, vocations, and services, we strive to promote independence and community integration, enabling our residents to lead richer, more fulfilled lives.
405-694-5652 criggs@cflinc.org
Speaking Date: Friday, August 1st @ 12:00pm

Stefani Nachatilo
SISU Meal Program
Sisu is a low-barrier, identity-affirming space in Oklahoma City where unhoused transition-age youth find the shelter and support they need to pursue the life they want.
The work of Sisu Youth Services began in 2010, when Penny Reynolds set out to collect and share resources for at-risk youth in Oklahoma City. By 2013, her simple mission had become a full-scale intention to create a program that would simplify the process of connecting youth in crisis to emergency support services at every level of care.
The Sisu Youth Day Center first opened its doors in 2014. One day a week donors, case managers, service providers, and volunteers rallied together to connect with and support unhoused youth in our city. The continual outpouring of love we received from our community every week blew us away–but we knew that our work wasn’t done.
Our youth needed a space that was open to them every day. A place where they could come as they are and be accepted and welcomed with open arms–no matter their gender identity, sexual orientation, cultural background, or religious affiliation.
The dedication of our volunteers and the generosity of our donors have allowed us to expand Sisu into what it is today: a low-barrier, identity-affirming emergency overnight shelter and drop-in resource hub for unhoused and at-risk youth across our city.
Together, we have the power to show one another empathy, kindness, and respect. Together, we can end youth homelessness.
Together, we are Sisu.
405-417-0587 stefani.nachatilo@gmail.com sisuyouth.org
Speaking Date: Friday, August 22nd @ 12:00pm

Darrell Weaver
OK Senator – District 24
Elected in 2018, state Senator Darrell Weaver of Moore represents Senate District 24. He is the only Senator to serve as the former Director of a state agency. Commissioned as an Agent with the Oklahoma Bureau of Narcotics in 1987, he held various assignments throughout the state. In September of 2006, he was appointed Director of the Oklahoma Bureau of Narcotics and Dangerous Drugs Control and retired after serving the Bureau for 28 years. In 2014, Senator Weaver was inducted into the Oklahoma Law Enforcement Hall Of Fame.
Senator Weaver is a graduate of Cameron University with a Bachelors of Accounting. He received the 2009 Distinguished Alumni Award and in 2013, was named as an “Acclaimed Aggie”. He earned a Master of Business Administration from Oklahoma Christian University and was awarded an honorary Doctor of Pharmacy. Senator Weaver is a graduate of the FBI National Academy and the Senior Management Institute for Police. He is an Alumnus of Leadership Oklahoma Class XXIII, Leadership OKC Class XXVIIII, the 2013 Leadership Moore Class, Leadership Tulsa Class 54, the TEAM South OKC Leadership Program, the 2011 Tinker Air Force Base COMMstar Program, and the Salt and Light Leadership Training (S.A.L.L.T.) program. Senator Weaver served as the 2010 State Charitable Campaign Chairman for the United Way and is a former State Board member for Big Brothers Big Sisters of Oklahoma. He was a long-time elected trustee of the Oklahoma Law Enforcement Retirement System (OLERS) and a member of the Council on Law Enforcement Education and Training (CLEET) governing council. Most recently, in 2021, he was appointed to the national board of CALEA (Commission on Accreditation for Law Enforcement Agencies) Commissioners and has served on numerous boards and committees. Senator Weaver served from 2015 to 2018 as the CEO of Big Brothers Big Sisters of Oklahoma. A fitness enthusiast, Senator Weaver holds a personal trainer certificate from the Cooper Institute and was a graduate of the inaugural CrossFit instructor’s course. Senator Weaver is a pilot and enjoys flying with his wife.
A Christian author, Senator Weaver has been a speaker at men’s groups, youth camps, and church gatherings across the State of Oklahoma. He currently attends Capitol Hill Assembly Church.
Senator Weaver and his wife, Kim, a physician, have five children, and own and operate Weaver Clinics. They are active members of the Moore Chamber of Commerce and South Oklahoma City Chamber of Commerce. He served many years as a volunteer youth football and basketball coach.
405 darrell.weaver@oksenate.gov
Speaking Date: Friday, Sept 5th @ 12:00pm