Complex sentence: Following the fire of January 1907, construction of the new building was under way by October, during the term of Governor Frank Hanly; it was built primarily of stone, with stairs made of iron and marble.
Split into simpler sentences: Following the fire of January 1907, construction of the new building was under way by October, during the term of Governor Frank Hanly. It was built primarily of stone, with stairs made of iron and marble.