There is an 1854 Bible being sold by "rokas" on eBay #1519530620.The family record starts on 24 August 1783 with the birth of Rew. PETER SCHMUCKER, resident of Ohio since 1822, died in Cincinnati on 9 December 1860.
Peter Schmucker's kids: Polly, Peter, Ivac (Isaac ?), Andrew, Helena, Lucinda, Aron (Aaron ?) born 14 January 1812, Sarach (Sarah ?).
Aron SCHMUCKER & Elizabeth married 8 July 1839. Thomas ROLLS & Margaret married 6 November 1854.
Hm... I wonder if your Jacob could be related, perhaps a nephew of this Peter?