 Preble appears to have accepted the seventh-day Sabbath in 1844, possibly from Frederick Wheeler or someone associated with the Washington, New Hampshire, church.Preble was the first Millerite to advocate the Sabbath in print.In the Feb. 28, 1845, issue of the "Hope of Israel", a Seventh-day Adventist periodical in Portland, Maine, was reprinted in tract form in March, 1845, with the title, "Tract, Showing That the Seventh Day Should be Observed as the Sabbath."