Complex sentence: A Baptist group had been established in the 1820s, but ended due to a lack of support, the Episcopals established a congregation in 1834, but did not build their Trinity Episcopal Church until 1850.
Split into simpler sentences: A Baptist group had been established in the 1820s, but ended due to a lack of support,. The Episcopals established a congregation in 1834, but did not build their Trinity Episcopal Church until 1850.