Pearson died at his home in Gloucester, Mass., on Jan. 13 at the age of 88.
He was a progressive Republican who represented Kansas in the U.S. Senate for nearly 17 years.
The service will be held at 11 a.m. at First United Methodist Church in Baldwin City, where Pearson had lived part time. The service is open to the public.
Pearson worked on deregulating natural gas, expanding international trade and reducing the number of votes required to end a filibuster from 67 to 60.
(Copyright 2009 by The Associated Press. All Rights Reserved.)
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