W.O.L.F. Sanctuary | Our Team
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Our Team

"Alone we can do so little, together we can do so much."


Shelley Coldiron

Executive Director

Shelley holds a BS in Biology, an MS in Analytical Chemistry and her PhD in Biomedical Engineering. She joins W.O.L.F. after starting multiple Biotech companies. For over 25 years she has been intimately involved with the rescue, sanctuary and rehabilitation of both shelter and wildlife animals namely canids, felines and birds of prey. Shelley has been involved with W.O.L.F. since her move to Colorado in 2010. If she finds any down time she can be spotted enjoying the company of her rescued cat and six shelter dogs.

Susan Weidel

Rescue Coordinator & Volunteer

Susan is an attorney and has been an active volunteer at W.O.L.F. since 2009. She has devoted her life to supporting and working with animal welfare and rescue organizations. She enjoys being a part of the rescue process. She shares her home with three rescue dogs with varying special needs. Susan’s hobbies include gardening, ballet, basketball, and books. She also uses her free time to teach her dogs a variety of silly tricks!

Mark Speth

Volunteer Coordinator

Mark had been a devoted volunteer at W.O.L.F. before being hired as Volunteer Coordinator. He has an has an associate’s degree in veterinary technology where he focused primarily on wildlife handling and capture techniques. Mark is finishing his bachelor’s degree at CO State University in Natural Resource Management with minors in conservation biology and zoology. He originally had no intentions of working with wolves and was getting geared up to work with komodo dragons, but his heart was stolen by wolves after completing an internship with W.O.L.F.–Mark is now part of the pack.

Michelle Proulx

Director of Animal Care & Educational Programs 

Michelle started volunteering with W.O.L.F. in 2005 and was hired on as staff after her graduation from Colorado State University, with a BS in Zoology, in 2008. She enjoys all aspects of animal care with a special interest in the rehabilitation aspects of W.O.L.F.’s rescues. As a Colorado native Michelle savors anything outdoors, and can usually be found with her eye pressed against the lens of a camera.

Valerie Johnson, DVM, MS

Staff Veterinarian

​Dr. Johnson is a post-DVM fellow in the Department of Microbiology, Immunology, and Pathology at CSU.  Her work is investigating the antimicrobial properties of activated mesenchymal stem cells and how they induce bacterial killing and enhance antibiotic activity in treatment of chronic infections.  Dr. Johnson has worked for years to provide quality veterinary care for a wide variety of wild animals and is excited to be an integral part of the W.O.L.F. team.

Carol Mahoney

Director of Development

Carol Spiciarich Mahoney received her Bachelor’s degree in Science, Technology & Society from Vassar College. Before coming to W.O.L.F., she had been a nonprofit development consultant and active volunteer and board member with a number of nonprofit and animal welfare organizations. Her favorite part about working at W.O.L.F. is getting kisses from Jacob.

Bob Proulx

Facilities / Operations Manager & Video Productions

Bob joined the W.O.L.F. team in 2012 after the High Park Fire. Believing in the “Red Green Show” philosophy that if people don’t find you handsome, they should at least find you handy, Bob fills the role of the “Jack of all Trades” handyman. Bob has a degree in wildlife biology and finds working at W.O.L.F. a rewarding and satisfying change of pace. Originally from Michigan, Bob likes outdoor activities and Murphy, a mastiff with the appetite of a wolf.

Jim Englert

Operations & Facilities Assistant

Debbie Dean

Events Assistant & Volunteer

Sharon Sharp

Netsuite Assistant & Volunteer

Lisa Golicher

Social Media Coordinator & Volunteer

Zachariah Lamb

Operations & Facilities Assistant

Zack started volunteering with W.O.L.F. in the summer of 2016. Originally from the southwest corner of Colorado, Zack has been intrigued by wolves from a very young age and has greatly enjoyed the unique challenges W.O.L.F. has presented to him. Zack is majoring in wildlife biology and is loving getting to know the world of W.O.L.F.

Board of Directors

dr-ron-brightDr. Ron Bright has been a member of the W.O.L.F. Board of Directors since 2014. He has been a veterinary surgeon for many of W.O.L.F.’s animals since 2004. In 2013 he helped initiate an annual field examination program for each animal at the Sanctuary.

Dr. Bright graduated from Ohio State University College of Veterinary Medicine and specialized in small animal surgery. He served as a member of the Board of Regents and President of the American College of Veterinary Surgeons. Dr. Bright was a professor at several prestigious universities over the years, including Purdue, University of Florida and the University of Tennessee. He has published over 150 articles, more than 27 chapters in 10 veterinary textbooks, and has given over 150 lectures both nationally and internationally.

Barbara Budny joined the W.O.L.F. Board in 2017. She is a Vice President with Graziano Budny which is a part of UBS Financial Services, Inc. She specializes in financial planning and wealth management. Barbara grew up in rural Wisconsin and earned a B.S. at the University of Wisconsin.

Barbara has had a passion for animals for many years. “Outside of the investment world, I support many national and local animal shelters and animal rights organizations.  I volunteered at animal shelters, adopted endangered animals at wild animal sanctuaries, and participated in the Legislation Day with the Humane Society of the US.  Promoting animal welfare and animal rights in Colorado is one of my greatest passions.”  She also shares her home with her two cats, Donald and Shayna. Barbara was the Guardian Angel to our wolf Lance in 2015, and until he returned to spirit in May 2016. Barbara is currently the Guardian Angel for Pax.

shelleyShelley Coldiron, Ph.D. has been the Executive Director of W.O.L.F. Sanctuary since July 2012. She has served on the W.O.L.F. Board of Directors since late 2011. Dr. Coldiron has B.S. and Master’s degrees from Wright State University. She received her Ph.D. in 1993 in Biomedical Engineering from Iowa State University where she also taught analytical chemistry. She has been the CEO and President of several nanotechnology companies and is an expert in developing commercial applications for university-developed technologies.   She has published numerous scientific articles and holds several patents in chemistry, devices and nanotechnology.

Dr. Coldiron has been active in animal welfare and rescue for over 35 years in Ohio, Iowa, Utah, and Colorado. She shares her home with six rescued dogs.

Liz Smokowski graduated from Regis University with a Master’s in Business Administration and Bloomfield College with a Bachelor’s in Biology and a minor in Business Management.

She has had a passion for animals and animals welfare all of their life including training and education with an Associate’s degree of Science in Animal Health. She worked as a certified Veterinary Technician and years later, with Longmont Humane Society as a Board Member. That role allowed her the opportunity to combine all of her skills into a rewarding volunteer opportunity that turned into her position as Chief Executive Officer at the Longmont Humane Society.

dr-stone-and-kai_resizedDr. Teva Stone joined the W.O.L.F. Board of Directors in 2016. She is a 2009 graduate of Colorado State University School of Veterinary Medicine and has a special interest and love for surgery. She is co-owner of the Wellington Veterinary Hospital in Wellington, Colorado and President of the Larimer County Veterinary Medical Association

Dr. Stone often treats many of the animals at W.O.L.F. She has done routine medical examinations and assisted Dr. Bright on complex surgeries for W.O.L.F. animals, along with performing annual field examinations at the Sanctuary. In a recent W.O.L.F. Magazine article, Dr. Stone expressed her feelings about W.O.L.F.: “I think W.O.L.F. is extraordinary. The things they do for these animals, the sacrifices they make – I admire each and every one of the people involved. Their dedication to this cause is inspiring, and it makes me even more excited to be a part of this team.”

mikeMike Thompson is the Chairman of the W.O.L.F. Board of Directors and has been a Board member since 2013. Mike served in an executive management capacity at IBM for over 30 years. He is an expert in IT systems and software integration as well as strategic planning and business development.

For over 10 years, Mike has served as the Chairman and President of the Rist Canyon Volunteer Fire Department, which provides fire, medical and first responder services for over 110 square miles of Larimer County. He helped lead the fire department during the devastating 2012 High Park Fire and the historic flood of 2013.

claudia-whitcombClaudia Whitcomb, C.P.A. has been a member of the W.O.L.F. Board of Directors since 2014 and currently serves as Treasurer. She is a Colorado State University alumna and co-owner of the accounting firm Dye & Whitcomb. Ms. Whitcomb has over 20 years of experience in private and public accounting, specializing in taxation and financial accounting for non-profits, including serving a number of animal welfare agencies.

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