I found a local history book about Point Roberts, WA at the reference section of the Blaine, WA library. According to this book, Point Roberts, WA was originally land owned by the Federal government and was to be used for a military base that was never constructed. In the lat 1800s and early 1900s, there were coastal artillery bases Washington, like Fort Warden in Port Townsend, WA. Originally, a few civilians lived in Point Roberts, WA. They were employed by the Federal government to clear land a long the 49th parallel border. They stayed in Point Roberts, WA during the winter months. Over time, squatters became illegally living in Point Roberts, WA and this increased during the depression. The Federal government gave the land to Washington state and here we are today.