I have recently obtained a limited edition copy of a book (#12 of 150) of the members of the WA State Legislature's Fifteenth Session (that was 1917). It includes a photo of each member and a brief biography. Following is a list of surnames in this book. If anyone wants a copy, let me know. Each one is just one page.
LISTER (Governor)
HART, Louis F. (Lt. Gov.)
CLAUSEN (Auditor)
SHERMAN (Treasurer)
SAVIDGE (Commissioner of Public Lands)
PRESTON (Mrs. Josephine Corliss Preston--1 of 2 females)(Sup. of Public Instruction)

Members of the Senate--
NICHOLS
BARNES
BONER
BRAND
BROWN
BURTON
CARLYON
CHASE
CLEARY
CORNWELL
COX
DAVIS, Lincoln
DAVIS, Walter S.
FAIRCHILD
FAULKNER
FERRYMAN
FRENCH
GHENT
GROFF
HALL
HUTCHINSON
IVERSON
JOHNSON
JONES
JUDD
KARSHNER
KLEEB
KUYKENDALL
LANDON
McMILLAN
METCALF
MORTHLAND
MYERS
PALMER
PHIPPS
SMITH, A.A.
SMITH, Joseph H.
STEINER
STEVENSON
TAYLOR
WELLS
WRAY

Members of The House--
KELLY, Guy E.
ADAMS
ANDERSON
ANTHONY
ASPINWALL
BANKER
BISHOP
BOYD
BOYLE
BRADLEY
BROWN
BUTLER
CAMERON
CHRISTENSEN
COSSER
CRAWFORD
CROSS
DAVIS
DWYER
ELLIOTT
FARNSWORTH
FULLER
FULTON
GARDNER
GAUNTLETT
GIRARD
GOFF
GORHAM
GRAHAM
GRASS
GUIE
HALSEY
HART, Fred A.
HASTINGS
HASTINGS
HAYDEN
HEALEY
HODGDON
HOFF
HONEFENGER
HOOVER
HOUSER
HUBBELL
HULL
JONESKEARBY
KELLY, Albert A.
KNAPP
LEASE
LEDGERWOOD
LONG
LUNN
MANOGUE
McCALL
McCOY
MESS
MOORES
MORRIS
MORRISON
MURRAY
NASH
NELSEN
OLSEN
PETERSON
POOL
RAY
REED
REID
RENICK
ROTH
RUDENE
RYAN
SAWYER
SELMER
SHIELDS, J.M.
SHATTUCK
SHIELDS, Elmer Ellsworth
SILER
SIMSSMITH
SPALINGER
SPENCER
STRATTON
SUMMERS
SWALE
SWOFFORD
TERRY
THOMLE
THOMPSON
URQUHART
WASHBURN
WELDON
WESTFALL
WILLIAMS, Ina Phillips (the only other female)
WILSON
YALE
YOUNG
ZEDNICK

Names are listed as they were spelled and in the order listed in the book.