Walter was born in Loomis, California on May 7, 1923 to Ringo and Yasu Matsuoka. He married Kimi Uyemura on December 4, 1949. Together they had 6 children, 8 grandchildren, 10 great grandchildren, and 1 great great grandchild. The memorial service is to be held at Placer Buddhist Church, 3192 Boyington Road, Penryn, California on February 16, 2016 at 1pm.