Rochester: January 12, 2019. Robert is predeceased by his parents, Arthur and Betty Dumbleton. His is survived by his partner of over 20 years, Mary E. Dickerson; children, Lee Dumbleton (Angela Gorman), Becky (Bill) Disbrow; grandchildren, Levi, Charlie, and John Dumbleton; sisters, Lisa (David) McCaffrey, Cathy Mansouri; step-children, Bridgette Dickerson, John Dickerson, Melissa (Josh) Zimmerman; niece and nephews; 7 step-grandchildren.

Bob worked as a chemical engineer at Olin Chemical.

 Friends may call Tuesday, January 15, 1-3 PM at the funeral home (495 N. Winton Rd.) where a Celebration of Life follows at 3 PM. Memorial donations may be directed to the American Cancer Society.