Complex sentence: Richard Draper may have anticipated his demise, as he formed a partnership with John Boyle in May, the month before his death, but Margaret Draper soon ended this partnership (between August 4 and 11,1774) as Boyle did not share her loyalist sympathies.
Split into simpler sentences: Richard Draper may have anticipated his demise, as he formed a partnership with John Boyle in May, the month before his death. However, Margaret Draper soon ended this partnership (between August 4 and 11,1774) as Boyle did not share her loyalist sympathies.