Theresa Johnny was 31 when she vanished after a series of movements between Whitehorse, Yukon, and Anchorage, Alaska, in 1998. A member of the Dease Lake First Nation, she graduated from Yukon College in 1995 with a diploma in First Nations management and had also used the last name Essman. Reports place her as last heard from on July 1, 1998, following an earlier disappearance from her home in Whitehorse in March 1998 and a confirmed sighting in Anchorage in July 1998.

Theresa is described as a Native American female, black hair, brown eyes, 5 feet 2 inches tall, and about 147 pounds. Investigators have considered that she may have been living on the streets after her last contact. Multiple agencies, including the Royal Canadian Mounted Police and the Anchorage Police Department, have handled the case, which remains open and unresolved.

If anyone knew Theresa, saw her in Anchorage in July 1998, or has information about her whereabouts, please share what you know.