I cannot read the surname in the second account on this page: Saml A _al__s ?
This is Dr. Samuel A Walkup, "Doct Walkup" occurs on Mar. 9 and Sept 4, 1852 (Vol. 2, Book 8). Catharine Spiller Graves attended school at Mrs Walkup's (1849; Vol. 2, Book 6), but I'm not certain it's the wife of Samuel Walkup.
Thanks -- that's incredibly helpful. (And it's kind of ironic that this name is actually a doctor, despite every name in the accounts being prefaced with "Dr" for "Debtor".)