Investigators identified the pair who were killed when the motorcycle they were riding ran off the road in Mill Village Township sometime Saturday.
It happened on Route 6N near Vincent Rd.
Adam Crispin, 34, and his passenger, Kiley Johnson, 26, both of Titusville, were found by family members Sunday.
The Harley-Davidson failed to make a curve heading west, went into a ditch and landed in high grass, according to state police.
Both were thrown from the motorcycle and suffered fatal injuries, investigators said.
The pair was pronounced dead at the scene Sunday evening.