Samuel Stewart - Stewart/Boone/Porter Coincidences

I noticed a couple of interesting coincidences #1- In the batch of land patents filed along with Samuel Stewart's there was one belonging to Samuel Porter, Samuel's brother was Patrick Porter, who was married to Susanna Walker, Susanna's brother Samuel Walker was at Fort Boonesborough. #2 The Walkers and Porters migrated to North Carolina during the same time frame as the Boones and Stewarts. #3 Hannah Boone was married to John Stewart.