The slaves that were in America were convinced by the British to join the British so they could help in war. Mostly they were put as nurse and other slave jobs. The slaves were offered freedom from the British, that is why they joined the British.
If by planters you mean "Plantation owners", then it is planters. Plantation owners were at the top of the South's social hierarchy because they possessed large plots of land, yielding much income from the that land, and with the income came political power.
The main idea in Madison's federalist paper #51 is that checks and balances can and should be put in place in a federal government in order to keep any single branch from becoming too powerful.
They demonstrate Government should help in many areas as possible
Civilian conservation corps was created to help unemployed citizen by providing them with jobs that doesnt require a high level skills, meanwhile the homeowners loan corporation was created to help in refinancing home mortages to prevent foreclosure
In the first major pioneering movement, settlers made their way to Oregon and California by way of the "Oregon Trail", which was also where many settlers would meet with relatives.