APG Staff

Marvin Keyser


Marv has been in the aviation industry for more than 50 years, with the past 35 years in the remote sensing and airborne survey sector, mostly in management. This includes the past 26 years as an owner and executive of Aries Aviation International’s group of companies in Canada, United States. He has extensive experience internationally while undertaking airborne remote sensing projects and doing business in more than 80 countries. Mr. Keyser has been a licensed pilot since 1970 and currently holds Airline Transport Pilot Licenses from Canada and the United States. During his aviation career, he has accumulated more than 20,000 flying hours on various types of aircraft ranging from single-engine bush planes to advanced multi-engine turboprop and jet aircraft. In 2008, he was awarded Flight Safety’s “Safety Star” award in recognition of his ongoing commitment to advanced training and aviation safety.

T Richard Horscroft

Consulting Geophysicist

Richard has more than 40 years of international geophysical and natural resources exploration experience with both mining companies (having worked for the Anglo-American Corporation) and O&G companies. He has a BSc Hons Geology degree and an MSc Geophysics degree from Imperial College in London, UK. He has held senior business development positions with several exploration and service companies involved with both airborne and ground geophysics programs involving all of the major geophysical techniques: reflection seismic 2D/3D, gravity, magnetics, radiometrics, and electromagnetics. Richard has worked with numerous Governments helping them to develop regional geophysical programs to assist exploration companies and to promote interest in and bring in new investors to both the mining and oil and gas sectors. Given his unique background with both mining and O&G, he is now focused on developing new geophysical programs to assist with natural hydrogen exploration, alongside minerals and O&G exploration.

Stephen Williams

Consulting Geophysicist
B.Sc. Geophysics B.A.A. Applied arts

Stephen has more than 35 years of experience as a geophysicist and over 20 of these years in airborne. He has a B.Sc. in geophysics and is a former GM of Geotech Middle East, VP at Aeroquest, Operations Manager at World Geoscience and VP Airborne Gravity Fugro-LCT.   Stephen has extensive international and domestic operational and managerial skills having actively participated in surveys in over 40 countries and all seven continents. His knowledge and experience extend to both petroleum and minerals – Stephen has case studies published in Offshore and Oil & Gas magazines utilizing potential fields programs and specifically gravity data.Mary Hornback

Mary Hornback

SMS Administrator & Company Aviation Safety Officer

Approaching five years of aviation experience, including training in Safety Management systems, flight operations, and flight training.

After completing the Commercial Pilot Program (Rotary) Mary continued to pursue other areas of the industry including crew scheduling, and flight following. After two years in that field, she shifted to safety coordination and now SMS administration. Throughout the course of her career, Mary has completed CASO, CCAA Human Factors, and CCAA SMS Manager training courses.

Mary is now the SMS Administrator for Aries, facilitating the development and maintenance of procedures and auditing systems throughout the company in coordination with the SMS Manager. Accountable for the development and facilitation of the policies and procedures within the company’s Safety Management System (SMS), and Health Safety Security Environment (HSSE) Program. All while maintaining responsibility for general field safety oversight and safety-related communications with customers, contractors, industry safety associations, Government Agencies and additional interested third parties.

Jody Weyman

Safety Management System Manager

More than 30 years of broad aviation experience in aviation management and flight operations. Specifically, over 17 years in Safety Management Systems (“SMS”) as SMS Manager, systems development, training, and implementation. In addition to SMS and related Health Safety Security Environment (“HSSE”) has an extensive background in aircraft dispatch for global operations and has held positions of Operations Manager for; CAR-604, CAR-702, CAR-703, CAR-704 flight operations.

An extensive ongoing professional development over her career from institutions such as Embry Riddle Aeronautical University, that includes aviation management, professional certifications in aircraft appraisal, business administration, safety management systems, international flight operations, technical writing, leadership, security, human factors, WHIMIS, transportation of dangerous goods, international standards for business aircraft operations, leadership, customer care, auditing, quality assurance, statistics, and aircraft cabin safety.

Actively participates in industry associations such as Director at Canada’s Aviation Hall of Fame, Canadian Business Aviation Association chapter chair, guest speaker at aviation conferences and universities both locally and internationally, and 2nd lieutenant Officer within the Royal Canadian Air Force CIC.

Currently Aries’ Safety Management System (“SMS”) Manager and Company Aviation Safety Officer responsible for company compliance of Occupational Health and Safety Regulations and the administration of company SMS and active in risk management of all airborne remote sensing work conducted by Aries and its clients.