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Leonard Kosinski
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Leonard Kosinski Obituary
Edward
Age 69, of Woodstock, Georgia, passed away on November 26, 2025, after a courageous battle with cancer.
Dr. Leonard E. Kosinski was born on October 24, 1956, in Pittsburgh, Pennsylvania, to Leonard and Claire Kosinski. He was a longtime resident of Woodstock, Georgia, where he lived for the past 21 years. Leonard was preceded in death by his beloved wife, Carla Kosinski.
Leonard devoted his life to his family and is survived by his four children: Mary Kosinski, Leno Kosinski, Joyce Kosinski and her husband, Daniel Diamicis, and Max Kosinski. He was the proud grandfather of Theodore Heddleston, Reagan Heddleston, Daniel Leonard Diamicis, and Claire Diamicis. He is also survived by his brother, Jim Kosinski and his wife, Sue; and his sister, Beth Winkempleck and her husband, Brian.
Leonard was a graduate of La Salle University and Purdue University. He enjoyed a long and impactful career with DuPont, where he worked primarily with polymers and earned multiple patents for his innovative contributions. Leonard was known for his quick wit, sharp intellect, and his love of cooking for those he cared about.
A memorial service will be held on Saturday, December 6, 2025, from 1:00 PM to 3:00 PM, at Lakeside Funeral Home, 121 Claremore Drive, Woodstock, GA 30188.
To plant trees in memory, please visit the Sympathy Store.
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Lakeside Funeral Home - Woodstock121 Claremore Drive, Woodstock, GA 30188
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1 Entry
Dan Gragg
December 3, 2025
You will be missed. We were the best of friends for such a long time and it´s hard to say goodbye to someone I looked to as a brother. Inseparable growing up in all the crazy things we did. If you needed to find Danny then look for John and vice-versa. The times withy Crosbie, Stoerkel, Pethel, and tricky Dick McClure. Bob & Elaine, you and Robin, Bill & Charmaine, Scotty, me and either Cathy or Karen (depending on month). Great and memorable times. The races and Bye-Bye Miss American Pie, parties mostly at Crosbie´s. Can´t leave out Nancy Dade and Marie, where you got the nickname "Art". The times at Lanny´s with Kenny, Dennis and Herb, Gary and Nancy. The demolition derbies with our street cars all over Madison. The wise old Indian (your dad) and your mom always covering for us. Corky coming of age not to leave her out. We thought those times would never end and then we went to the Army at Fort Polk, Louisiana. What a nightmare that was through training not knowing if we be headed to Nam or not. So many stories to tell and not enough time to tell them all. I'll always think of you and that wont stop. I love you brother. Hope I will see you again.
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