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Our Staff

The work that we are doing is our job;
The work that we are doing is also someone’s life.
— Our Philosophy


LaDella Thomas
Executive Director

3 Things About Me…
1. I worked on the campaign to get the ballot initiative passed in 2016 (and again in 2023!) to fund services for people in Stone County who have developmental disabilities.
2. I have twin sons, 2 dogs, and a husband of 29 years that I spend all of my non-working time hanging out with.
3. I’ve dedicated the past 15 years of my career working in the non-profit and governmental sectors. Community is everything to me and my family, and I am always open to a call or a visit!


Mindy Zickefoose
Director of Operations

3 Things About Me…
1. My family is most important to me. My husband and I have been married for 30 years and we have two children.
2. I am a dog lover. I have two Sheepadoodles who are 8 years old and a lab who is 1 year old.
3. I love the summer heat and humidity; you will find me on the lake if I’m not working.



Lisa Dicks, RN
Community Registered Nurse


Rhonda Braker
Human Resources Generalist

3 Things About Me:
1. I love working in the HR field and have been in the profession over 20 years.  I’m excited to be on the SCDDB team and work in the new HR department.
2. My family loves to travel.  Ken and I have been married 27 years and have two adult daughters Reagan and Riley.  I’m grateful to call them my best friends.
3. Recent additions to our family include Stella, a maltipoo and Oakley a cockapoo.  And Reagan’s husband, Jacob- my new son-in-law that is so helpful on our farm on Y highway.  I’m thrilled to return to Stone County.


Jill Ummel
Senior Assistant Director of Day Services

3 Things About Me…
1. My family is my everything!
2. I love golfing with my husband at Ledgestone Country Club.
3. I love baking, especially my cutout sugar cookies.


Rosie Funburg
Assistant Director of Day Services


Page Colvin
Assistant Director of Residential Services

  1. Before joining SCDDB, I gained experience as a Youth Program Manager and Service Coordinator. Within the agency, I’ve worked as a DSP, Team Lead, and currently serve as the Assistant Director of Residential Services.
  2. My free time is spent with my husband and our playful pup. We love exploring Branson activities!
  3. Since college, I’ve focused most of my career on supporting individuals with developmental disabilities.

Nick Milnes
Corporate Trainer/Community Partnerships

3 Things About Me…
1. My fiancé, Mimi, is my whole world!
2. Lover of all things Kansas City Chiefs and DC/Marvel.
3. Provides DJ services upon request.