Sylvia June Galvan, 30, vanished from Mount Morris, Michigan, in October 2011. She was last seen getting into a vehicle with several unidentified men. At the time she was described as 5 feet 1 inch, about 150 pounds, with long brown hair and dark brown eyes. Distinctive tattoos included the names Caldwell and Howald, the phrase Dennis & April Forever, and a rainbow with stars and a moon on her ankle; she also had multiple left ear piercings, at least one right ear piercing, and moles on her right cheek and the left side of her neck.

Sylvia was not reported missing until 2013 because she was estranged from her parents and her children, a delay investigators say hindered evidence collection and witness interviews. Authorities have stated they suspect foul play, and the family maintains she would not have willingly abandoned her four daughters. The case remains open and active; law enforcement seeks tips and a cash reward has been offered.

If anyone knew Sylvia, saw her in Mount Morris in October 2011, or has information about the vehicle or the men she was seen with, please come forward.