真题阅读里的一句翻译问题 求教！

zx12000

96年 Text3 第3段
but even he had seldom that familiar personal knowledge of the workmen which the employer had often had under the more patriarchal system of the old family business now passing away.
但是，与现在正在消失的世袭制的旧家族企业的老板相比，即使是他也很少有过去那种对工人的熟悉程度。


问题：which the employer had often had under the more...这是怎么翻译的？尤其是had under the more琢磨半天也没想明白
本人基础问题 诸位谅解 请高人指点