When Sarah F. King and several other female members of the Illinois Trial Lawyers Association started discussing forming a women’s caucus for the organization last summer, they wanted to know how many women attorneys actually belonged to ITLA.They went to group’s Executive Director James Collins to find out.“I was honestly expecting him to say something under 100,” said King, an associate at Clifford Law Offices. “So when he told us that there were more than 300, we were all blown away.&rdquo …