1 EXHIBIT 23.1 CONSENT OF MORGAN STANLEY & CO. INCORPORATED March 11, 1998 First American Corporation Dear Sirs: We hereby consent to the inclusion in the Registration Statement of First American Corporation ("First American"), relating to the proposed merger of First American and Deposit Guaranty Corp., of our opinion letter in the Joint Proxy Statement/Prospectus which is a part of the Registration Statement, and to the references of our firm name therein. In giving such consent, we do not thereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act of 1933, as amended, or the rules and regulations adopted by the Securities and Exchange Commission thereunder nor do we admit that we are experts with respect to any part of such Registration Statement within the meaning of the term "experts" as used in the Securities Act of 1933, as amended, or the rules and regulations of the Securities and Exchange Commission thereunder. Very truly yours, MORGAN STANLEY & CO. INCORPORATED By: /s/ William M. Weiant -------------------------------