Thanks for the reply, Morris.Silas & Lydia married 17 Feb 1835 in Shelby Co., OH.Silas had a stone quarry & grist mill.
Harbaugh's 1909 History of Miami County Ohio: "Spring Creek Township, owing to it's natural water supply, became the site of many of the first mills, grist and otherwise, of the county. These mills were much needed by the people, as the nearest even were miles away and necessitated long journeys, which broke into the daily farm work. James McKinney put up corn-cracker mill on Spring Creek and Silas Manning operated another. A Mr. Ross combined a grist-mill with a carding mill about 1830 and operated it success fully. Samuel Wiley erected the first sawmill on Spring Creek in 1815 and sawed lumber for the first frame houses in the township. His example was followed by Elias Manning and Doctor Jackson. Several small distilleries also were erected and their output was either shipped out of the county or consumed within its limits."
I still suspect Delilah to be a LeFever (LaFavre), however, and somehow related to Lydia.