[GRAPHIC OMITTED][GRAPHIC OMITTED] P.O. Box 2600 Valley Forge, PA 19482-2600 610-503-5693 Natalie_S_Bej@vanguard.com September 20, 2007 U.S. Securities & Exchange Commission 100 F Street, N.E. Washington, DC 20549 RE: Vanguard Montgomery Funds (the "Trust") File Number 333-145624 Commissioners: Enclosed for filing under the Securities Act of 1933, as amended (the "Securities Act"), is Pre-Effective Amendment No. 1 to the Trust's Registration Statement on Form N-14 ("Amendment No. 1"). The purpose of Amendment No. 1 is to respond to comments provided by Commission staff to the initial filing of the Registration Statement on August 22, 2007, and to make other minor changes. THE TRUST HEREBY REQUESTS THAT THE COMMISSION DECLARE AMENDMENT NO. 1 EFFECTIVE AT 9:00 A.M. ON SEPTEMBER 24, 2007 OR AS SOON THEREAFTER AS POSSIBLE. No filing fee is payable herewith because the Trust is registering an indefinite amount of shares pursuant to Rule 24f-2 under the Investment Company Act of 1940. Moreover, a fee in connection with the preliminary proxy statement filed as part of the Registration Statement is not required pursuant to Rule 14a-6(j) under the Securities Exchange Act of 1934. The Trust and its distributor, Vanguard Marketing Corporation, have by separate letter requested, pursuant to Rule 461(a) under the Securities Act, that Amendment No. 1 be accelerated to an effective date of September 24, 2007. The request for acceleration is attached to this letter as Appendix A. We hope the staff finds the revisions in Amendment No. 1 responsive to the staff's comments on the initial filing of the Registration Statement. Please contact me at (610) 503 5693 with any questions. Sincerely, Natalie S. Bej Senior Counsel Enclosures cc: Christian Sandoe, Esq. Securities and Exchange Commission APPENDIX A 461(a) Acceleration Request September 20, 2007 U.S. Securities & Exchange Commission 100 F Street, N.E. Washington, DC 20549 RE: Vanguard Montgomery Funds--461(a) Request for Acceleration of Effectiveness File Number 333-145624 Commissioners: Pursuant to Rule 461(a) under the Securities Act of 1933, Vanguard Montgomery Funds (the "Trust") and its distributor, Vanguard Marketing Corporation, respectfully request that the effectiveness of Pre-Effective Amendment No. 1 of the Trust's registration statement on Form N-14 be accelerated to Monday, September 24, 2007. Pre-Effective Amendment No. 1 addresses comments of the Commission's staff regarding the initial filing of Form N-14, and has been filed today, September 20, 2007. Sincerely, VANGUARD MONTGOMERY FUNDS ---------------------------------- Name: John J. Brennan (Heidi Stam)* Title: President VANGUARD MARKETING CORPORATION, Distributor ---------------------------------- Name: Michael Kimmel Title: Secretary cc: Christian Sandoe, Esq. U.S. Securities and Exchange Commission