Carole, surprise! I am not researching any of the ROBERTS surname, but--belatedly--I am sending you information that I have found in the following resources:
The Zanesville Business Directory, and City Guide, for 1851, Zanesville; published by A. F. Cassel, 1851:
p. 98
Roberts, Mrs. Mary Ellen, 7th between market and north
Roberts, Mrs. Sarah Ann, elm west of Underwood
Roberts, John B printer, centre east of 7th
p. 112
Roberts William tailor
Williams' Zanesville Directory, City Guide & Business Mirror, for 1860-1 to which is Annexed a Directory of Putnam:
p. 99
ROBERTS JOHN B.
Post Master, Office 9 & 11 S. 5th, res River Road nr Rolling Mill
Roberts John D. machinist, s s Centre b 7th and Underwood
Roberts Justice, grocery, w s Main n of Lee, W.Z.
Roberts Oliver, lab. 27 Tarrier
Putnam Directory, p. 131
Roberts Mrs. Mary C. bds Mrs. Sarah Kline's
Roberts Wm C., tinner, bds Mrs. Sarah Kline's
Copies of both directories can be ordered through The Muskingum County Genealogical Society, Chapter of the OGS.
Good luck on your continued research.
Sue Mullins
Northridge CA
Susiesearcher@worldnet.att.netARMSTRONG, SAUP, BOSE, WEHMEYER, HOLLMANN, ARTER, EVERTS, HARRELL