A reference is a key section which those reading the application would take into account when making their decision, whether as part of a university application or a work application. This is an objective, third-party evaluation of you, after all, and is the only part of the application that you, the applicant, do not have a written hand in making. You should always tell anyone that you have provided them as a guide to something for an application, this is just etiquette. That way, one day, they won't be shocked by a call to ask about you, particularly if they haven't heard directly from you in years. They will also have time for a worthy response to be prepared that captures that you are.

Former teachers of the academy, tutors and headmasters

You will likely be asked to include an academic reference when applying to college, since this is relevant to where you are applying. Ideally, this would be someone in the department or region you are hoping to study for so that they can talk about why you will be a successful student at a higher level in this subject, as well as your job so far.

Doctor/Nurse/Medical professional

Not only is a family doctor or nurse a trustworthy, trained professional, but if you have lived in the same place, they might well have known you since you were a child. Again, for their position and knowledge, they are highly looked upon in society.

Policeman/Local authority

Hopefully, as part of their work, you may not have come into contact with law enforcement individuals, but you might well live next door to one. Authority figures are responsible for the safety and welfare of people and a reference from such an individual will be highly regarded.

Other work acquaintances

If, for whatever reason, you can't ask someone from a business you've previously worked for, look at connections you've made with other businesses or organizations to function as a referee. Have you been in close touch with someone in a different business? This could be someone with whom you have attended professional events or agreed to deals. Have you been approached as an expert to hold a seminar or talk at an event? These are all cases where, in a professional sense, you may have done an outstanding job, and your future referee may still be in a very impressive role somewhere now.