Fremont County Coroner

818 S. Federal Blvd., Suite 500, Riverton, Wyoming 82501
Office: 307-856-7150  
Fax: 307-856-7167 

The Coroner’s Office is assigned the duty by Wyoming Statutes to investigate all unattended or unanticipated deaths in the County, and by forensic medical-legal investigation principles, certify a manner and cause of death in those cases. The specific duties and standards of those investigations are detailed on another section. As well, additional pages detail other areas that may be of concern to the public or of interest in this area.

Current Full-time Staff:
Larry DeGraw, Coroner
Cell: (307) 851-2944

Larry has been a resident of Fremont County for over 25 years. He retired as a Detective from the Casper Police Department in May of 1995 and was an Investigator for the Natrona County Coroners office under Dr. Thorpen from 1991 to 2003. Larry was appointed to the position of Fremont County Coroner on 8/16/21. 

Erin Ivie Picture
Erin Ivie, Chief Deputy
Cell: 307-840-0152  

Erin was appointed as a Deputy Coroner in 2003, and completed a Bachelor’s Degree in Criminal Justice with a Minor in Crime Scene Investigation/Forensic Science in 2011. Ms. Ivie is nationally certified as a Medicolegal Death Investigator by the American Board of Medicolegal Death Investigators, is a member of the International Association of Bloodstain Pattern Analysts (IABPA), is a General Section member of the American Academy of Forensic Sciences (AAFS), recognized by the International Association for Identification (IAI) as a Medicolegal Death Investigator, and is a member of the Society of Medicolegal Death Investigators (SOMDI). In addition to her national associations, she is recognized by Wyoming Peace Officers Standards and Training as a General Lecturer and teaches regularly at the Wyoming Law Enforcement Academy. Erin also serves as a Medicolegal Death Investigator for the Region 8 Disaster Mortuary Operational Response Team (DMORT), and attended training with the Office of the New York City Chief Medical Examiner. Erin has over 1,400 hrs. of training in her respective field.

Tony Simmers Picture
Tony Simmers, Operations Deputy
Cell: 330-401-1147  

Tony has been with Fremont County Coroner’s Office since November 2017 where he has fulfilled the roll of Operations Deputy.  Tony has lived in Wyoming since 2011, and is proud to call Hudson his home. He is a graduate of CWC’s Outdoor Education Program and has a background in Wilderness Medicine and First Response.  In 2020, Tony earned his national certification as a Medicolegal Death Investigator through the American Board of Medicolegal Death Investigators (ABMDI) and became a member of the International Association of Coroners and Medical Examiners (IACME) in 2021. Tony very much enjoys living in Wyoming and spends most of his time backpacking in the mountains or shooting at the Lander Rifle Range.  He feels very privileged to live in such a beautiful area and considers it an honor to serve our community.