Obituaries & Guestbook

Robert D. Ader, age 90, of Sheboygan passed away on Friday, March 21, 2025. Robert was born to the late Stephen and Anna (Halper) Ader on February 9, 1935 in Chicago, IL. Robert graduated from Plymouth High School in 1953. After graduation he enlisted in the U.S. Army and served for two years. He was united in marriage to Rita Sonntag on July 5, 1958 at St. Clement Catholic Church. Robert was a machinist for over 40 years spending 30 of those at Kohler Co. until his retirement in 1997. He enjoyed spending time with his family and friends. Robert had a passion for golf and enjoyed bowling as well. In his later years you could find Robert traveling the Sheboygan area on his scooter. He was an active member of Ss. Cyril and Methodius Catholic Church for over 60 years and he was dedicated to staying active through exercise at the Sheboygan Senior Center.
Robert is survived by his children, Nancy (Tom) Kissinger, Tom Ader, John (Sue) Ader and Rick (Vesna) Ader; grandchildren, Ashley, Peter (Jillian), Austin, Kamryn, Nathan, Oliver and Tabitha; great-grandchildren, Mackenzie and Kara; two sisters, Barbara Langemak and Marion Lemberger as well as other family members and friends.
He was preceded in death by his loving wife of 58 years, Rita; parents; son, Larry; brother, Steve and other family and friends.
In lieu of flowers, memorials can be made to either Ss. Cyril and Methodius Catholic Church or Uptown Social (Sheboygan Senior Center).
Mass of Christian Burial will take place at 5:00 p.m. on Friday, March 28, 2025 at Ss. Cyril & Methodius Catholic Church, 822 New Jersey Ave., Sheboygan, with visitation from 2:00 p.m. until the time of Mass at 5:00 p.m. Private entombment will take place at Calvary Cemetery.
Robert’s family extends a special thank you to the staff at LakeHouse Sheboygan for their kindness and care of Robert, where they were able to enjoy his upbeat and positive attitude. The family would also like to thank family friend Jim Paulson for his love and support that enriched Robert’s life over the past several years.