I see already his muscular calves encasedin the gaiters episcopal. It was a hazardous, though maybe a gallantthing to do, 

since it is probable that the legend commonly received has had no small share in the growth of Strickland’s reputation; 

for there are many who have been attracted to his art by the detestation in which they held his character or the compassion 

with which they regarded his death; and the son’s well-meaning efforts threw a singular chill upon the father’s admirers.

上文中，by the detestation...是前面被动语态（ who have been attracted to his art ） 的施动者（即主语）吗？

然后这个施动者后面再接定语从句对施动者进行修饰？