Missing Since: 1977-09-11 Location: Palmer, Alaska
Sylvestre was last seen while on a moose hunting trip with three friends in Palmer, Alaska on September 11, 1977. She was attempting to ford Granite Creek on horseback, six miles up the creek past Sutton, when she fell off the horse and was swept downstream. Her friends were unable to rescue her. She has never been seen again and is presumed drowned, but her body was never located. Sylvestre is originally from Albuquerque, New Mexico and previously worked as a school bus driver. She lived on Buffalo Mine Road between Palmer and Sutton at the time of her disappearance. Investigating Agency Alaska State Troopers 907-428-7200 Source Information NamUs Find a Grave Facebook Page for Mary Sylvestre Updated 4 times since October 12, 2004. Last updated August 7, 2019; clothing/jewelry description updated.