Yesterday, I connected up former British Prime Minister, David Cameron, with the already existing wider Clan Cameron part of the tree.
He is a direct descendant of John MacEwen Cameron of Lochiel, 18th Chief of Clan Cameron, who is his 7th great grandfather.
Also of note, for those with an interest, he is King George III of the United Kingdom's 6th great grandson via William IV of the United Kingdom, and therefore, a 7th cousin of Prince George of Cambridge and Princess Charlotte of Cambridge (and any potential future offspring of Prince Harry and Meghan Markle).
Yes, that's right RJ Horace.
According to Wikipedia:
"Hart-Davis is a direct descendant of King William IV and his mistress Dorothea Jordan and is therefore a fifth cousin once removed of Elizabeth II, a second cousin once removed of the former British Prime Minister David Cameron, and a first cousin once removed of the historian John Julius Norwich."
Here is the genealogical relationship on WikiTree between Cameron-1947 and Hart-Davis-4: