Complex sentence: The hunger scabs were not treated with the same contempt by strikers as those who had returned to work earlier but in some collieries, fights broke out between hunger scabs who had been active pickets, and those who had broken the strike earlier.
Split into simpler sentences: The hunger scabs were frequently not treated with the same contempt by strikers as those who had returned to work earlier in the strike. In several collieries, fights broke out between the hunger scabs, some of whom had previously been active pickets, and those who had broken the strike earlier.