NPCs composing that spawngroup :

a_waterlogged_chest (100%)

NPCs spawning around that spawngroup :
(Max range : 100)

westkorlach63956, range=75 (-1125,-249,31)

westkorlach63963, range=38 (-1057,-167,39)

westkorlach63969, range=31 (-1100,-150,39)

westkorlach63976, range=96 (-1106,-85,40)

westkorlach_monocle_1_55, range=31 (-1100,-150,39)

westkorlach_monocle_1_56, range=38 (-1057,-167,39)

westkorlach_monocle_2_80, range=31 (-1100,-150,39)

westkorlach_monocle_2_81, range=38 (-1057,-167,39)

westkorlach_monocle_3_9, range=31 (-1100,-150,39)

westkorlach_monocle_3_13, range=96 (-1182,-217,40)

westkorlach_monocle_3_14, range=87 (-1174,-215,38)

westkorlach_monocle_3_15, range=38 (-1057,-167,39)

westkorlach_monocle_3_16, range=46 (-1059,-213,39)

westkorlach_monocle_3_17, range=46 (-1067,-219,39)

westkorlach_monocle_3_18, range=47 (-1074,-225,40)