You could try starting off by setting the first paragraph up in a way that would relate to the rest of your report. Listing three to five different brief descriptions on what your family is all about to you. That's what makes this report so unique because this is your own personal views about your family and the life you have in your family.
The first sentence could be something along the lines of My family name is..... We originate from.... Here is a brief description on what I will be writing about in my report and so on. I hope this is helpful.