Anyone good with History or majoring in it? PLEASE HELP!?

I'm desperate for help. This is my assignment:





Consider the following documents. Then write an essay that explains the potential biases in each one and the problems such biases would pose for a historian who wanted to use them to write abut slavery in the American South before 1860. Think about which documents would be the most useful and how they would be useful. Which would be the least useful? Why?





a. A speech made to an abolitionist society by a slave who escaped to the North in 1854.

b. A book written by an English aristocrat's wife about her travels throughout the South during 1848.

c. Oral interviews recorded in the 1930's with black people who had been slaves.

d. The diary of a plantation owner's wife, written in the years 1825-1855; her husband owned the largest plantation in Louisiana.

e. The ledger book for a county in South Carolina, kept for tax purposes, that recorded all sales and purchases of slaves and the value of each slave, covering the years 1830-1860.





Thank you to everyone in advance, your help means a lot.Anyone good with History or majoring in it? PLEASE HELP!?
I refer you to my previous answer for the same question.



Most useful - e.It's a financial and economic record,so has no axes to grind or points to make;it's information is therefore likely to be highly accurate.It can be used to find out how many slaves were bought and sold and the total value of all slaves in that county for the years covered.



Least useful - b.She's an outsider whose travels would only scratch the surface of southern society,and her book is likely to be influenced by what she's been told by the people she met - mostly rich people who would be in favour of slavery.