These Historians focus on statistical information rather than individual, such as, census data, tax records, payroll records, voting records, demographic data to study trends or mobility of groups. Humanities and social sciences taken together would be useful to all public history careers. Interning gives hands on experiences, working in the field of public history. There are many types of internships. Most are volunteer work.
Many universities also give credits toward a degree for fulfilling an internship.
You should try looking for an internship that would suit your talents, interests and career goals. The skills necessary for a public historian are such that one develops a set of methods and concepts by which historians gather evidence of the past, evaluates that evidence and presents legible and meaningful discussion of the topic. To do this historians must develop their ability to research, analyze and present their work. There are many skills needed for public historians, most of which can be learned through experience and educational facilities. People who are interested in this field, mainly need to be able to research, write and educate, just as they do working in academe.