Reuben Jacob Sironen, 91, of Highlands Ranch, CO, died Friday, Nov. 10, 2023, in Highlands Ranch.
He was born June 20, 1932, in Ewen, MI, to Emil and Maria Sironen, who immigrated to the United States from Finland. He was the youngest of their 10 children.
He was baptized Aug. 28, 1932, at First Lutheran Church in Ewen by Reverend F.W. Kaskinen. He was confirmed June 20, 1948, (his 16th birthday) at First Lutheran Church in Ewen by Reverend A.J. Korhonen.
Reuben attended public school and graduated from Ewen High School in 1950. He graduated from Michigan Technical University in Houghton, MI, with degrees in chemistry.
He married Beverly Jean Kubasch July 1, 1961, at Our Savior Lutheran Church in Livermore, CA, officiated by Reverend Hilton Schlecht.
He was employed at Argonne National Laboratory in Argonne, IL; General Electric Vallecitos Nuclear Center in Pleasanton, CA; Lawrence Livermore National Laboratory in Livermore; and EG&G Rocky Flats Plant in Golden, CO, from which he retired in 1995.
Reuben moved with his family to Boulder, CO, in 1970. He was a member of Mt. Hope Lutheran Church for 34 years, and he served on various boards and offices. He was also active in the International Lutheran Laymen’s League and Lutheran Hour Ministries.
In 2004, he moved with his wife to Highlands Ranch, at which time they became members of the Holy Cross Lutheran Church in Highlands Ranch. Reuben traveled to Finland on two occasions to visit ancestral relatives.
Reuben was preceded in death by his wife, Beverly; his parents; four brothers (Reino, Matthew, Alex, and Eli); and five sisters (Hilda, Saima, Ruth, Senia, and Gertrude). Additionally, one sister and one brother died as infants.
He is survived by his daughter, Ania of Albuquerque, NM, and son, Joel (married to Denise) of Centennial, CO. He has three grandsons, Jack, Alex, and Charlie, as well as numerous nieces and nephews.
Memorials may be designated for the Lutheran Hour (660 Mason Ridge Center Drive, St. Louis, MO 63141), Holy Cross Lutheran Church (9770 S. Foothills Canyon Blvd., Highlands Ranch, CO 90129), or to a charity of one’s choice.
He will be buried next to his wife, Beverly, in Winsted, MN.