Wilbur Campbell
Wilbur was born about 1850.  He died  due to sawmill accident..

 Mary Margaret Gates
Mary Margaret was born on August 16th, 1855.  She died at the age of 87 in 1942.

 Willa Campbell
Willa was born on December 13th, 1882 in Glendale, PA.  She died at the age of 24 on February 12th, 1907.