REYNOLDS, LEO THOMAS - Minnehaha County, South Dakota | LEO THOMAS REYNOLDS - South Dakota Gravestone Photos


South Dakota Veterans Cemetery - Sioux Falls Cemetery
Minnehaha County,
South Dakota

Leo Thomas Reynolds
May 24, 1945 - November 24, 2020

Sioux Falls, SD ~ Leo Thomas Reynolds, age 75, died on Tuesday, November 24, 2020 at Sanford USD Medical Center following complications from an auto accident in August. A public visitation will be held on Friday, December 4, 2020 at George Boom Funeral Home & On-Site Crematory in Sioux Falls, SD from 5:00 PM to 8:00 PM. A private funeral service will be held on Saturday, December 5, 2020 at the funeral home. His service will be available to view online on Saturday, December 5, 2020.

Leo Thomas Reynolds was born on May 24, 1945 in Minneapolis, MN to Marcella Marie Donnelly. As an infant, Leo was adopted July 2, 1945 by Donald and Elizabeth (Betty) Reynolds. Leo was raised and received his education in Dubuque, IA graduating from Dubuque Senior High School. Following high school, Leo honorably served our country in the United States Air Force from 1963 to 1967 as Airman 1st Class (E4). Upon his discharge, Leo continued his education at the University of Iowa, Iowa City, IA where he graduated in 1972 earning a degree in electrical engineering. Upon graduation, Leo worked for 3M Corporation in Minneapolis, MN from 1972 - 1976. He then began working with Litton Microwave from 1976 to 1980. While at Litton, Leo was instrumental in the development of the microwave oven and construction of the Litton building in Sioux Falls, SD. May 19, 1980 Leo followed his dream and entrepreneurial spirit and founded Electronic Systems Inc. with five employees. He relocated his business to 60th St. North in Sioux Falls in 1984 and through his hard work ethic and good business savvy grew his business to run 3 shifts, expanded to a second building and in 1997 added a Plant in Pierre, South Dakota. Leo was proud of his company and the products they manufactured and retired from ESI June 1, 2009. Leo came out of retirement in February of 2011 to support his wife Sandra in her dream to open Olive Destination, Inc. and was instrumental in the marketing and building of Olive Destination.

Other accomplishments: As a member of the Sioux Falls Development Foundation Executive committee and later president, he worked to bring in companies to Sioux Falls and South Dakota.

He was a member of the Chamber of Commerce for many years.

He served on the Executive committee of the IPC (Institute for Printed Circuit Technology-an international organization) and served on the Congressional Commission on 21st Century Work Force.

Leo enjoyed riding his 2001 Harley Davidson Road King; he had a passion for the Mississippi River and trains, often reliving the stories of Huckleberry Finn.

He loved traveling, and above all, spending time with his family. Leo considered himself “the luckiest man on earth.”

He applied his military experience to his work and personal life, by applying “Check Six”.

When a military aviator says “Check Six,” he's communicating to another pilot to check his most vulnerable position. The implicit contract from one pilot to another is: “I have your back,” and is central to the exceptional teamwork that ensures mission success.

Check the facts. Who has your back? Who can you trust?

Leo was united in marriage with Sandra Cowing-Sonne on February 26, 1994 in Sioux Falls, SD.

Sandra learned many, many things from Leo; including manufacturing, logistics, and what a bottle neck is. He was her wingman!

Leo was a loving husband, father, grandfather, and great-grandfather. He was a generous, cheerful, compassionate and gracious person, employer and friend. Leo will be dearly missed by so many.

Grateful for having shared his life are his wife, Sandra K. Reynolds; four sons, William (Camille), Nathan (Sandra), Jeff (Andrea) and Daniel (Danielle) Reynolds; Troy and Tyler Sonne were added to his family in 1994; 15 grandchildren, Elizabeth, Paul, Mary, Sara, Anna, Ally, Myles, Thomas, and Avery Reynolds; Tate Sonne, Skye, Tierney, and Jade Pendleton; and Gavin Sonne. 3 great-grandchildren, Angel and Luna Rivera and Parker Borron; his loving Yorkshire Terrier, Ellie; and a host of other relatives and friends.

Leo is preceded in death by his parents, Donald C. and Elizabeth T (Graham) Reynolds; father-in-law, Harry F Cowing, mother-in-law Betty J Cowing and daughter-in-law, Lisa A Pendleton Sonne.

To all who knew and loved him: We are so sorry to have to say goodbye to our beloved Leo and all share in this grief.

Section A1 Columbarium Niche # D31 Inurnment 8 June 2021

Contributed on 8/6/21 by 9katz
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Record #: 272537

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Submitted: 8/6/21 • Approved: 8/10/21 • Last Updated: 8/13/21 • R272537-G0-S3

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