Complex sentence: He was also the first Commissioner of the Niagara Parks Commission, having created a company for railway building, Grzowski & Co., building from the Niagra horseshoe down to Sarnia and as far as Montreal.
Split into simpler sentences: He was also the first Commissioner of the Niagara Parks Commission. Gzowski founded a company for railway building, Gzowski & Co., building from Niagara Falls to Sarnia and as far as Montreal.