Complex sentence: Wishing to see something of North America, Robert set off with four other Englishmen to walk the to Montreal via Niagara Falls, before returning to New York and catching the "Pacific" to arrive in Liverpool at the end of November.
Split into simpler sentences: Wishing to see something of North America, Robert set off with four other Englishmen to walk the to Montreal via Niagara Falls before returning to New York. He caight the "Pacific" and arrived in Liverpool at the end of November.