Ancestry.com. R.L. Polk & Co.'s Adrian city directory, 1907 [database on-line]. Provo, UT: The Generations Network, Inc., 2004.Original data: R.L. Polk & Co.'s Adrian city directory, 1907 : containing an alphabetically arranged list of business firms and private citizens, a street guide and householders directory, a classified list of all trades, professions and pursuits, a miscellaneous directory of city and county officers, public and private schools, churches, banks, incorporated institutions, secret and benevolent societies, etc., etc., etc.. Detroit, Mich.: R.L. Polk & Co., 1907.