Magline Inc., Pinconning, Mich., appointed James Curtin region sales manager for the Midwest.

Ozburn-Hessey Logistics, Brentwood, Tenn., named Bob Spieth president of contract logistics.

Graham Packaging Holdings Co., York, Pa., named Warren D. Knowlton chief executive officer and member of the board of directors. Knowlton replaces Philip R. Yates who is retiring, but will remain chairman of the board.

Saddle Creek Corp. expanded its management teams in Atlanta and its Lakeland, Fla., headquarters. Robert Pericht was named senior vice president of warehouse operations and Doug Johnston was appointed vice president and general manager of the campus for the Atlanta office. In Lakeland, Tom Patterson was promoted to senior vice president of warehouse operations and Butch Riggleman to vice president and general manager of the Lakeland campus warehouse operations.

Schenck Co., Orlando, Fla., appointed Kelley P. Mossburg president and corporate general manager of its Orlando business.

Hartness International, Greenville, S.C., re-aligned its North American sales team and named Keith Cooper director of sales for the Northeastern United States, Canada and the Caribbean; Erin Boles, director of sales for the Southern United States; Jim Soenke, director of sales for the Western United States; Tony Elrod, director of technical sales; and Scott Smith, vice president of sales and marketing.

Eqos Inc., Burlington, Mass., appointed Joseph E. Laughlin to its board of directors.