I remember one meeting where a sister called of for a presentation and a young, twenty something elder filled in the spot at the last meeting. His partner was a woman old enough to be his mother wearing a small but noticeable veil on her head (1 Corinthians 11:3-16).
I also had a friend of mine who was a sister who used to conduct a Bible Study during recess in the High School we attended. One day when I stepped into the room where she was conducting the study she mentioned that she needed a head covering. She pulled a sweater over her head!
Those were the good old days.