CharC,
The National Parkinson Foundation, a national organization (hence the 'National' in their name), is a wonderful resource and has free literature you can request. The caretaker portion of their website is http://www.parkinson.org/caregivers.aspx (If you place your mouse over the previous link, you can 'click' and it will take you there.) If that doesn't work for some reason you can 'google' the words 'National Parkinson Foundation'. Let me know if you have trouble getting either of those options to work.
Best of luck,
lizzy4451