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Lawrence Peter Kostroski

August 4, 1950 - December 19, 2023

Lawrence Peter Kostroski, 73, passed away December 19, 2023 in Casa Grande. He was born August 4, 1950.

Lawrence was a teacher at St. Agnes Catholic School in Green Bay, WI and then at the University of Wisconsin at Green Bay. He consulted with many small businesses through SBDC and owned his own business, Venture Research Corporation. Also did market research for Krueger International in Green Bay. He was a Packers shareholder. He loved playing bridge, pinochle, and schafkopf. He had been an avid cross country skier and was proud to have completed several American Birkebeiner and cross country ski races. He also played golf and pickleball until he was unable to.

He is survived by his wife since August 7, 1971, Julie Marie Kostroski; children Ryan Kostroski and Kristine Kostroski; grandchildren Aiden Kostroski and Harper Kostroski; brothers Ryan Kostroski (Grace) and Jeff Kostroski (Christina); sister-in-law Joanne Piette and brother-in-law Thomas Piette (Sandra).

Lawrence is preceded in death by his parents Edmund and Mary Kostroski; parents-in-law Edward and Ruth Piette and numerous other relatives.

There will be a Memorial Service at a later date.

Donations can be made in his name to the Desert Botanical Gardens or the Arizona City Evangelical Methodist Church.


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