Jon Masao Yamaguchi 59, of Honolulu, died in Honolulu on December 8, 2019. He was born in Honolulu. Private services held. SHARE ON FACEBOOK SHARE VIA EMAIL Our deepest condolences to the family and friends of the deceased ADVERTISEMENT Explore more Search Records for Jon Masao Yamaguchi with Ancestry® Discover Jon Masao Yamaguchi Family Story with Ancestry® AncestryDNA® with Traits Discover Details of Your Family History - Search Records with Ancestry® Sponsored by Ancestry