Margaret was born in Corvallis, Oregon, to parents Percy and Audrey Blackstone. She attended Corvallis High School and played piano and cello. While still in high school she played cello with the Oregon State University orchestra. Margaret attended Oregon State University where she met her future husband James J. Robnett. They were married on August 21, 1949. They lived in Corvallis for a short time and eventually settled in Happy Valley, OR, where they raised four children. Margaret was a homemaker and community volunteer; most notably at Kaiser Sunnyside Hospital for over thirty years.
Margaret was preceded in death by her husband, James Robnett, her sister, Nancy Hawkins, her sons-in-law Hugh Ellsworth (Sue), Jon Hopkins (Cathy) and two grandchildren, Rebecca and Christopher Robnett. She is survived by her brother, Thomas Blackstone (Mary Bell) of Santa Rosa, CA, her children David (Cindy) Robnett of Corvallis, OR, Susan Ellsworth of Milwaukie, OR, Bruce (Karen) Robnett of Newport, OR, Catherine Hopkins of Silverton, OR, eight grandchildren and eight great-grandchildren.
The memorial service will be Saturday, August 31 at 11:30 am at Happy Valley Community Church, 10601 SE 129th Avenue in Happy Valley. Reception to follow at 1:00pm at Happy Valley Park. Internment at Willamette National Cemetery. Donations in her memory can be made to Happy Valley Parks and Recreation.