Madelyn G. Seibert, 68, of Sebastian, died Wednesday, July 8, 2009, at her residence. She was born Sept. 16, 1940, in New York, N.Y., and was a resident of Sebastian for 23 years coming from Lake Ronkonkoma, N.Y. Prior to retirement Mrs. Seibert had worked as a secretary for Sebastian Elementary School. Survivors include her husband of 49 years, Daniel L. Seibert; and son, Gary Seibert, of Malabar, Fla. Memorial contributions may be made to the American Cancer Society, 3375 20th St, Vero Beach, FL 32960.A memorial service will be held at 6 p.m. on Tuesday, July 14, at Seawinds Funeral Home Chapel in Sebastian.Arrangements by Seawinds Funeral Home & Crematory. Condolences may be sent to www.Seawindsfh.com/obit.php.