B. Platt Carpenter
Benjamin Platt Carpenter was an American lawyer and politician from New York and Montana. He was Governor of the Montana Territory from 1884 to 1885.
Carpenter was born in Stanford, Dutchess County, New York. He graduated from Union College in 1857, and studied law. He was admitted to the bar and practiced in Poughkeepsie, New York. On November 24, 1860, he married Esther Thorn, and they had three children.
Source: Wikipedia