Complex sentence: The town quickly prospered as an agricultural center and riverboat stop (the forests were timbered for steamboat firewood) and a major shipping port by 1865 for agricultural produce, and fish, with the Bartlett Pear as its primary product.
Split into simpler sentences: The town quickly prospered as an agricultural center and riverboat stop (the forests were timbered for steamboat firewood). It was also a major shipping port by 1865 for agricultural produce and fish, with the Bartlett pear as its primary product.