Ancestors of Marcia Virginia Rice Love

I have almost 13,000 names on my family free so far. Some of the family branches that I am looking to expand on are Henry Miller, I and John Rarig from Germany; John Fox, Andrew Jackson (father of President Andrew Jackson), William Taylor, William Thompson and William Alexander from Scotland via Ireland (Alexander lineage from Robert the Bruce King of Scotts); and a more complete family outline on John Hart the signer of The Declaration of Independence through my great-great grandmother Jessie Emma Hart. I have really enjoyed learning about my extended family and the times in which they lived. Any information anyone could share would be greatly appreciated and I am willing to do the same.