Sgt. Russell Garthwaite, MSgt, USAF (Ret) » Staff Listing Administration | Leadership Team | Support Staff | All Staff Listing Go back to directory. Add to Address Book. Sgt. Russell Garthwaite, MSgt, USAF (Ret) Aerospace Science Instructor Explosive Ordinance Disposal JROTC InstructorCTE Department Desk Phone: x54338work Teams Phone: x70292cell Email: email@example.comINTERNET Categories: CTE Teacher Updated 1 week ago.