Is it possible to have a minor when you are majoring in an engineering field? Do you know anyone who has done this and their experience with it?
Thank you! 
Yes, it is possible and some minors lend themselves nicely to engineering majors. An example would be a math minor. A friend of mine was doing a math minor along with his engineering courses; what it comes down to is whether or not it will delay your graduation because as an engineer your schedule has zero wiggle room.
It’s possible, it just takes extra time and really depends on how much you care about the minor. Like getting a math minor won’t help with employment, but it could if you want to do high level math and research in graduate school. Classes also give priority to people of their major, so good luck trying for something like a computer science minor.