He was president of the North American Trust Company until it merged in 1904 , becoming part of the Trust Company of America .
When that company was merged with the North American Trust Company , Thorne became the latter 's vice president and later president .
Thorne was president of the North American Trust Company until North American Trust Company merged in 1904 , becoming part of the Trust Company of America .
When that company was merged with the North American Trust Company , Thorne became the latter 's vice president and later president .