Two players both scoring a century for a team in each innings in a first-class match

Worcestershire v Hampshire at Worcester, 1899
WL Foster (140 & 172*) and RE Foster (134 & 101*)

Gloucestershire v Worcestershire at Worcester, 1933
WR Hammond (122 & 111*) and CCR Dacre (119 & 125*)

South Australia v Victoria at Melbourne, 1940
RA Hamence (130 & 103*) and CL Badcock (120 & 102)

Bombay v Maharashtra at Poona, 1949
DG Phadkar (131 & 160) and UM Merchant (143 & 156)

Australia v New Zealand at Wellington, 1974
IM Chappell (145 & 121) and GS Chappell (247* & 133)

Pakistan v Australia at Abu Dhabi, 2014
Misbah-ul-Haq (101 & 101*) and Azhar Ali (109 & 100*)

Zimbabwe A v Ireland at Harare, 2015
RW Chakabva (104 & 101) and MN Waller (138 & 118)