Delicious blackberries grow wild throughout the backyards and backroads of McLoud, which is proudly known as the Blackberry Capital of the World. But where did such a claim to fame come from? This week on LoyalTV, find out how a clever gift sent to President Harry S. Truman put McLoud on the map for the tasty fruit and led to an annual celebration that draws nearly 40,000 people from across the nation.