A long time ago, my mother employer's offered discounted stock as part of its compensation plan. Her brother gave her a small sum of money so that she could buy some stock for him. She did this, the stock in her name, and intermingled with some she purchased for herself.

• Is there any way to determine the stock price when the stock was purchased?
• The company split up into several companies which have split as well. She now holds stock in many of these. Is there a resource for would help me with this, stock-wise?
• Similarly, the stocks themselves have undergone many splits. How could I figure this out?
• How could I determine the dividends paid over this period?

Update

Apologies for my poor attempt at humor... My uncle is a fine man who I wouldn't take advantage of.

More information. The stock was AT&T, and for sake of argument, let's say it was an accumulation of 10 shares on 1/1/1965. I have used AT&T's Investor Site to determine share price at purchase, as well as here and here to more or less figure out splits, mergers and spin-offs to the best of my limited ability. Dividends are MIA.