Mary Lynn Koster

July 23, 1957 ~ March 6, 2018 (age 60)

Mary Lynn Koster, age 60, of Boulder City, NV, passed away on March 6, 2018 in Las Vegas, NV.  She was born on July 23, 1957 in Fort Dodge, Iowa to Clarence and Phyllis Koster.  She graduated from South Sioux City High School in Nebraska.  After she graduated she lived in many places including San Fransico, CA.  She finally settled in Boulder City, NV in 1986.


She enjoyed art, going on walks and gardening.  She was an excellent baker.   Spending time on or near water was one of her favorite places to be and loved Myrtle Beach, SC.  She also was an avid storm chaser and enjoyed watching the weather.


Mary Lynn is survived by her two children Taryn (Ryan) Troll and Kyler (Jourdan) Ohl; one brother Chad (Nichole) Koster; five sisters Rona (Larry) Vogel, Janet (Gary) Amos, Kathy (John) Bill, Karen (Randy) Pick, Dianne (Dale) Horan; three grandchildren Harper Troll, Brett Ohl and Rose Ohl. She is preceded in death by her parents and brother David.


Family will be holding private services.  In lieu of flowers memorial donation can be made to Alzheimer’s Foundation at  Family and friends can sign an online memorial guestbook at

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