Hi Cathy, I think you'll get a quicker answer if you divide up the families into different requests.
I did a Google search on 1864 Rhoads Wagon Train and several web sites appeared with information. One that I read, www.angelfire.com/sc2/earlypioneers/rhoadswagontrain.html contains a list of everyone on his (Thomas Foster Rhoades Jr.) wagon train.
I also found the BonnieGaia 09.12.25 family tree, trees.ancestry.com/tree/14223942/person/78521778 which contains information about John Pierce Rhoades and his wife Matilda Fanning. Most larger libraries offer free access to Ancestry.
Why don't you look at this info first and then post questions about the Rhoads/Rhoades, Fannin and Dickey families individually. Successful Searching!