His will is also on Brian Lawson's databases:
YATES, John 1863 Mau E 130 0106464
This gives the LDS film number [0106464] and the number [130] of the Epis will. The film can be ordered to view through any LDS Family History Centre, worldwide, for a small fee. To find the closest FHC look in the phone book under Church of Jesus Christ of Latter Day Saints.

Sue