It is a treasure to have this information and most of it is proving true, however it is not sourced. Therefore, I have to go through a lot of searching to find information he had gotten first hand from relatives.
Please do not make your descents redo the research you have done. Properly cite your sources on all forms you have. If you need information on citing, Thomas MacEntree at GeneaBloggers has created a quick reference card. Also, pick up either of Elizabeth Shown Mills source citation books and you can use a source writer, such as the one available on Legacy.