Hallmark to Close Topeka Plant; Consolidation to Cost 300 Jobs in Kansas: Hallmark Cards Inc. will close its Topeka (KS) manufacturing plant and shed about 300 jobs as it consolidates its Kansas operations at its remaining facilities in Lawrence and Leavenworth, the company said yesterday. The Kansas City-based greeting card company said the number of people working at its Kansas plants will fall from about 1,300 now to about 1,000 when consolidation is finished by the end of next year.