This site provides central access to detailed web sites covering the four main advertising collections of Cliff and Linda Hoyt. The four collections include three Lowell, Mass companies plus a theatrical collection of memorabilia from playwright Charles Hoyt (1859-1900). The three Lowell companies include medical companies: (1) J.C. Ayer and Co. (Makers of Ayer’s Cherry Pectoral, Sarsaparilla, Cathartic Pills, Hair Vigor, and Ague Cure) and (2) C.I. Hood and Co. (Makers of Hood’s Sarsaparill