Complex sentence: However, Jacob and his family had lived among the Latter Day Saints in Chautauqua, Co. NY in the early 1830s and in the Latter Day Saint region of Illinois (Hancock County) throughout the period of settlement there.
Split into simpler sentences: However, Jacob and his family had lived among the Mormons in Chautauqua, Co. NY in the early 1830s. Furthermore, Jacob lived in the Mormon region of Illinois (Hancock County) throughout the period of Mormon settlement there.