Louis Sockalexis was born on the Penobscot Indian reservation near Old Town, Maine, in 1871. His grandfather was Chief of the Bear Clan. In his youth, Sockalexis' athletic talents were very noticeable. It was reported that Sockalexis could throw a baseball across the Penobscot River from Indian Island to the shore of Old Town. Additionally, it is said that Sockalexis and his father entertained crowds at the Bangor Race Track by playing catch across the entire track. He attended High School in Van Buren's St. Mary's.