Marietta was born to Jennie and Joseph Dever. She graduated from Conrad H.S. and Goldey-Beacom College. She married Eugene R. Knecht. Hercules and Delaware Charter Guaranty and Trust Co. were two of the many companies she worked for. She retired early to care for her daughter, Donna Butler and her grandchildren Jenna and Michael Dolor. She loved sewing and spending her summers at Buttonwood Beach and time with her family and friends.

Marietta passed away at home on December 16, 2016 due to health issues but was able to remain at home due to the care of her son-in-law Joe Dolor, daughter Carol Dolor and Seasons Hospice. She will be truly missed by her family and friends.

Family and friends may call on the family December 28, 2016 at 12:00pm at McCrery & Harra Funeral Home, 3710 Kirkwood HWY, Wilmington, DE. Following the viewing, a service and burial will be at Delaware Veterans Memorial Cemetery in Bear, DE at 2:00pm.