Biography
https://www.oregondigital.org/catalog/oregondigital:fx719t21f#page/8/mod... (pg 8)
https://www.findagrave.com/memorial/56303337/clark-e-ross
https://www.oregondigital.org/catalog/oregondigital:fx71b966v#page/4/mod... (pg 4)
https://www.abmc.gov/node/388469#.XDBeZ1xKhPY https://www.oregondigital.org/catalog/oregondigital:fx71bm01w#page/14/mo... (pg 14)
https://www.oregondigital.org/catalog/oregondigital:fx719v902#page/477/m... (pg 482)