Among the persons employed by Isaac White, in his capacity of government agent of these salt works, was John Marshall, a man of the sterling character, and who afterwards, as a banker acquired a great reputation both in Indiana and Illinois. In the following year their connection become closer still - Marshall having married Mrs. White's younger sister, Amy Leech. The following reference to this interesting event occurs in Mrs. Hayden's notes before mentioned:
The marriage occured on the 21st of October, 1806 and accompanied by Colonel White and her sister (Mrs. White), they - that is, young Marshall and his bride - set out next day for the salt works, where their home was to be for the present - he (Marshall) being employed as book-keeper by Colonel White.