Complex sentence: Vickers Jacob had served in the Bengal Army of the East India Company, became a merchant and landowner in the British colony of New South Wales, and at the time of Archibald's birth was a jute planter and indigo merchant in Bengal.
Split into simpler sentences: Vickers Jacob had served in the Bengal Army of the East India Company, then became a merchant and landowner in the British colony of New South Wales. At the time of Archibald's birth, Vickers Jacob was a jute planter and indigo merchant in Bengal.