History of northern Wisconsin: containing an account of its settlement, growth, development, and resources, an extensive sketch of its counties, cities, towns and villages, their improvements, industries, manufactories, biographical sketches, portraits of prominent men and early settlers, views of county seats, etc. Chicago: Western Historical Co., 1881. p.1151

Charles O. Josslyn, of the firm Lane & Josslyn, Tremont House; was born in Penobscot Co., Maine, April 11, 1845, his parents being Thomas S. and Sarah G. (Chapman) Josslyn. About 1864, he took a position as hotel clerk in East Corinth, Me., and remained about three years. After a short time in Dexter, he then went to Bangor, and engaged as clerk in dry goods store. Three years later, he went into business for himself, selling dry goods in Ellsworth, Me., the firm being Lyon & Josslyn; sold out in two years, and went to Boston, engaging as traveling salesman, a business he followed five years. In 1876, he came to Oshkosh, and engaged in the dry goods business, the firm being Josslyn Bros. In March, 1881, formed a partnership with Mr. Lane, and took the Tremont House. Mr. J. is a member of A., F. & A. M. Lodge and Chapter of Maine, and Oshkosh Commandery, No. 11.