I had an interpreter that was deaf herself. Wore hearing aids in both ears, even used the FM system with a neckloop, and she'd have 1 hearing aid on T-coil to use with the FM to hear the teacher speaking and 1 hearing aid on normal setting so she could ear other people in the room. She really worked hard on her listening skills and made great use of her hearing aids. Amazing woman she is. She doesn't interpret for students in school anymore, but still works with the state department of education. She's a very very good friend of mine these days.
also had a teacher of the deaf that was deaf and wore hearing aids (until she lost more hearing and hearing aids weren't enough for her anymore). Unfortunately, she and I didn't get along when she was my teacher of the deaf for 1 year in high school.. very different views on how to use an interprter, etc. (I grew up learning to watch the teacher and lipread, and when necessary, look over at the interpreter if I missed something... for her, she watched the interpreter at all times so she got very upset with me when I didn't watch the interpreting the whole time which was just ridiculous! For many years at the deaf school, I was taught to use my listening skills and lipreading skills as much as possible, and I took that with me after I graduated from the deaf school at the end of 6th grade).