Walter Hook Sung Yuen, 89, of Honolulu, a retired Honolulu Board of Water Supply employee and an Army veteran, died in Honolulu. He was born in Honolulu. He is survived by daughter Janna, brother Walter K.P. and sister Charlotte Hedani. Visitation: 11 a.m. Thursday at Borthwick Mortuary. Services: 11:30 a.m. Inurnment: 3 p.m. at National Memorial Cemetery of the Pacific, Punchbowl. Aloha attire. No flowers. Online condolences: