Complex sentence: Prior to that date, two other railroads were incorporated, on paper only; they were the Milton & North Mountain Railroad Company that was incorporated on November 20,1885 & the Millville and North Mountain Railroad Company that was incorporated on January 9,1886.
Split into simpler sentences: Prior to that date, two other railroads were incorporated, on paper only. They were the Milton & North Mountain Railroad Company that was incorporated on November 20,1885 & the Millville and North Mountain Railroad Company that was incorporated on January 9,1886.