============================================================================== UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D. C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported) June 18, 2007 OHIO CASUALTY CORPORATION (Exact name of registrant as specified in its charter) OHIO 0-05544 31-0783294 (State or other jurisdiction (Commission (IRS Employer of incorporation) File Number) Identification No.) 9450 Seward Road, Fairfield, Ohio 45014 (Address of principal executive offices)(Zip Code) (513) 603-2400 (Registrant's telephone number, including area code) Not Applicable (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule l4a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Page 1 of 4 ============================================================================== ITEM 8.01. Other Events - --------- On June 18, 2007, Ohio Casualty Corporation (the "Corporation") issued a press release announcing that the directors of the Corporation have today declared a record date of June 28, 2007 for shareholders eligible to vote at a special shareholders meeting to be held on August 8, 2007 concerning the adoption of the Agreement and Plan of Merger dated May 6, 2007 among Liberty Mutual Insurance Company, Waterfall Merger Corp. and Ohio Casualty Corporation. The special shareholders meeting will take place at the Ohio Casualty University Auditorium, 9450 Seward Road, Fairfield, Ohio 45014 at 9 a.m. Eastern Daylight Time. The press release was posted on the Corporation's website at http://www.ocas.com and is attached hereto as Exhibit 99 and hereby incorporated by reference. ITEM 9.01. Financial Statements and Exhibits - --------- (d) Exhibits Exhibit No. Description ---------- ----------- 99 Press release dated June 18, 2007, announcing that the directors of the Corporation have today declared a record date of June 28, 2007 for shareholders eligible to vote at a special shareholders meeting to be held on August 8, 2007 concerning the adoption of the Agreement and Plan of Merger dated May 6, 2007 among Liberty Mutual Insurance Company, Waterfall Merger Corp. and Ohio Casualty Corporation. The special shareholders meeting will take place at the Ohio Casualty University Auditorium, 9450 Seward Road, Fairfield, Ohio 45014 at 9 a.m. Eastern Daylight Time and posted on the Corporation's website at http://www.ocas.com. Page 2 of 4 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. OHIO CASUALTY CORPORATION ------------------------- (Registrant) June 19, 2007 /s/Debra K. Crane -------------------------------------- Debra K. Crane, Senior Vice President, General Counsel and Secretary Page 3 of 4 Exhibit Index ------------- Current Report on Form 8-K Dated June 18, 2007 Exhibit No. Description - ---------- ----------- 99 Press release dated June 18, 2007, announcing that the directors of the Corporation have today declared a record date of June 28, 2007 for shareholders eligible to vote at a special shareholders meeting to be held on August 8, 2007 concerning the adoption of the Agreement and Plan of Merger dated May 6, 2007 among Liberty Mutual Insurance Company, Waterfall Merger Corp. and Ohio Casualty Corporation. The special shareholders meeting will take place at the Ohio Casualty University Auditorium, 9450 Seward Road, Fairfield, Ohio 45014 at 9 a.m. Eastern Daylight Time and posted on the Corporation's website at http://www.ocas.com. Page 4 of 4