Complex sentence: During his youth, he continued his family "kuleana" (responsibility) in serving the Hawaiian royal family and served as the chief steward and butler in the royal household under King Kamehameha IV and his wife Queen Emma from 1855 to 1863.
Split into simpler sentences: During his youth, he continued his family "kuleana" (responsibility) in serving the Hawaiian royal family. He served as the chief steward and butler in the royal household under King Kamehameha IV and his wife Queen Emma from 1855 to 1863.