PRP in base 59 and 61

For base 75, I found hitherto:
(75^3-1)/74
(75^19-1)/74
(75^47-1)/74
(75^73-1)/74
(75^739-1)/74
(75^13163-1)/74
(?)
(75^15607-1)/74, discoverer Pedja Terzic


For base 82, I found hitherto:
(82^2-1)/81
(82^23-1)/81
(82^31-1)/81
(82^41-1)/81
(82^7607-1)/81
(82^12967-1)/81


For base 92, I found hitherto:
(92^439-1)/91
(92^13001-1)/91

To be completed...